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Project # Project Title Research Focus Area Research Program Administering IC(s) Institution(s) Investigator(s) Location(s) Year Awarded
1R61AT012187-01
Total-Body PET for Assessing Myofascial Pain Clinical Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NCCIH UNIVERSITY OF CALIFORNIA AT DAVIS CHAUDHARI, ABHIJIT J Davis, CA 2022
FOA Title: HEAL Initiative: Developing Quantitative Imaging and Other Relevant Biomarkers of Myofascial Tissues for Clinical Pain Management
FOA Number: RFA-AT-22-003
Summary:

Myofascial pain syndrome is a prevalent and debilitating condition and can aggravate other conditions such as sickle cell disease. This project will use total body imaging using positron emission tomography/computed tomography (TB-PET/CT) to identify and monitor this pain syndrome and potential treatments over time. The research will use TB-PET/CT to assess myofascial tissue effects of chronic low back pain and sickle cell disease pain. The first phase of the project will assess health changes observed by TB-PET/CT imaging in painful and non-painful myofascial tissues compared to healthy myofascial tissue. The second phase of the research will be a randomized, controlled longitudinal interventional study to evaluate the effectiveness of acupuncture on myofascial pain syndrome, using TB-PET/CT imaging to assess changes.
1R21NS130417-01
The Role of Lysosomal Mechano-Sensitive Ion Channel in Pain Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NINDS INDIANA UNIVERSITY PURDUE AT INDIANAPOLIS TAN, ZHIYONG Indianapolis, IN 2022
FOA Title: Emergency Awards: HEAL Initiative-Early-Stage Discovery of New Pain and Opioid Use Disorder Targets Within the Understudied Druggable Proteome (R21 Clinical Trial Not Allowed)
FOA Number: TR22-011
Summary:

Chronic pain severely reduces the quality of life and ability to work for millions of Americans. Because misuse of opioids for chronic pain treatment contributes to opioid addiction and opioid overdose, there is an urgent need to study novel non-opioid mechanisms, targets, and treatment strategies for chronic pain. Many ion channels control the flow of electrical signals in peripheral sensory neurons and are thus key targets for understanding and treating chronic pain. This project will conduct detailed studies to identify major ion channel-related molecular activities, targets, and treatment strategies for chronic pain. In particular, this research will explore the role of a specific ion channel (lysosomal mechanosensitive ion channel, orTmem63A) in neuropathic pain resulting from nerve injury.
1R21AT012304-01
Erythrocyte Autophagy Proteins as Potential Non-Opioid Novel Targets for Pain in Sickle Cell Disease Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NCCIH UNIVERSITY OF ILLINOIS, CHICAGO RAMASAMY, JAGADEESH Chicago, IL 2022
FOA Title: Emergency Awards: HEAL Initiative-Early-Stage Discovery of New Pain and Opioid Use Disorder Targets Within the Understudied Druggable Proteome (R21 Clinical Trial Not Allowed)
FOA Number: TR22-011
Summary:

Sickle cell disease is an inherited blood disorder affecting about 100,000 Americans and over 20 million people worldwide. It is caused by a mutation in the gene for beta-globin that results in the characteristic sickled shape of red blood cells, life-long severe pain, and shortened lifespan. Painful episodes that require hospitalization and, in many cases, opioid treatment, are a hallmark of sickle cell disease. The source of these painful episodes remains unclear, and it is also unknown why pain severity varies so much among affected individuals. This project will identify novel, non-opioid targets to reduce sickle cell-related pain and search for biomarkers to help clinicians predict which individuals are at risk for increased pain, thereby improving health outcomes for people with sickle cell disease.
1R21DA057500-01
G Alpha Z Subunit as a Potential Therapeutic Target to Modulate Mu Opioid Receptor Pharmacology Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NIDA UNIVERSITY OF ROCHESTER BIDLACK, JEAN M Rochester, NY 2022
FOA Title: Emergency Awards: HEAL Initiative-Early-Stage Discovery of New Pain and Opioid Use Disorder Targets Within the Understudied Druggable Proteome (R21 Clinical Trial Not Allowed)
FOA Number: TR22-011
Summary:

Opioids affect the body by attaching to certain types of receptors that attach to G-proteins (particularly, a subtype called G-alpha). Opioids vary in their ability to provide pain relief as well as in their ability to require more drug to provide a response, known as tolerance. This project will explore the potential of various G-alpha subunits to increase or decrease opioid receptor signaling. The research findings will lay the groundwork for tailoring G-alpha related opioid effects to provide more pain relief while being less addictive.
1R21NS130409-01
Novel Genetically Encoded Inhibitors to Probe Functional Logic of Cav-Beta Molecular Diversity Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NINDS COLUMBIA UNIVERSITY HEALTH SCIENCES COLECRAFT, HENRY M New York, NY 2022
FOA Title: Emergency Awards: HEAL Initiative-Early-Stage Discovery of New Pain and Opioid Use Disorder Targets Within the Understudied Druggable Proteome (R21 Clinical Trial Not Allowed)
FOA Number: TR22-011
Summary:

High-voltage-gated calcium channels convert electrical signals into physiological responses. After a nerve injury, levels of these channels go down in some neurons in the dorsal root ganglia that communicates pain signals to and from the brain. This decline results in reduced flow of calcium that may underlie pain. This project will develop novel approaches to block these calcium channels p to further study their roles in controlling pain.
1R21TR004333-01
Discovery of Novel Openers of the Understudied Human Drug Target Kir6.1 Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NCATS NEW YORK UNIVERSITY SCHOOL OF MEDICINE CARDOZO, TIMOTHY J New York, NY 2022
FOA Title: Emergency Awards: HEAL Initiative-Early-Stage Discovery of New Pain and Opioid Use Disorder Targets Within the Understudied Druggable Proteome (R21 Clinical Trial Not Allowed)
FOA Number: TR22-011
Summary:

Routine treatment of pain with prescription opioid medications may evolve into opioid use disorder, addiction, and potentially overdose. New, non-opioid molecular targets for pain are needed as a key element of responding to the opioid and overdose crisis. Ion channels are molecular gateways that convert electrical signals into physiological responses, and many have been implicated in transmitting pain signals. The ion channel Kir6.1/KCNJ8 has been linked to the control of postoperative and cancer pain. Studies in animal models show that low levels of this ion channel are evident after an injury. This research will identify compounds that can open the Kir6.1/KCNJ8 channel as potential treatment strategy for pain.
1R01DK135076-01
PNPase Inhibition as an Effective Treatment for Chronic Bladder Pain Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NIDDK UNIVERSITY OF PITTSBURGH AT PITTSBURGH BIRDER, LORI A; JACKSON, EDWIN KERRY Pittsburgh, PA 2022
FOA Title: HEAL Initiative: Discovery and Validation of Novel Targets for Safe and Effective Pain Treatment (R01 Clinical Trial Not Allowed)
FOA Number: NS22-034
Summary:

Chronic visceral pain disorders, such as interstitial cystitis/bladder pain syndrome, are among the most difficult types of pain to treat. This project will conduct a detailed analysis of an enzyme thought to be involved with the disorder (purine nucleoside phosphorylase, or PNPase) as a target for new nonopioid pain medications to treat interstitial cystitis/bladder pain syndrome. The research will lay the groundwork for developing targeted treatments for visceral pain disorders.
1U19NS130617-01
Harvard PRECISION Human Pain Center Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NINDS BRIGHAM AND WOMEN'S HOSPITAL RENTHAL, WILLIAM RUSSELL; WOOLF, CLIFFORD J Boston, MA 2022
FOA Title: HEAL Initiative: Discovery and Functional Evaluation of Human Pain-associated Genes and Cells (U19 Clinical Trial Not Allowed)
FOA Number: NS22-018
Summary:

This project will use state-of-the-art technologies to analyze individual cells to characterize how human pain receptors communicate pain between the human dorsal root ganglia and the brain – including how the signals vary across diverse populations. This research will generate useful, high-quality human data about pain for further analysis and re-use by other scientific teams, toward identifying and prioritizing novel therapeutic targets for pain.
1R01DK134989-01
Signal Integration by Specialized Mesenchyme in Urothelial Homeostasis and Interstitial Cystitis/Bladder Pain Syndrome Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NIDDK STANFORD UNIVERSITY BEACHY, PHILIP A Redwood City, CA 2022
FOA Title: HEAL Initiative: Discovery and Validation of Novel Targets for Safe and Effective Pain Treatment (R01 Clinical Trial Not Allowed)
FOA Number: NS22-034
Summary:

Interstitial cystitis/bladder pain syndrome is a debilitating disease affecting many women. Opioid-based pain management is a common feature of current treatment approaches but is associated with the risk of addiction. The causes of this disorder remain unknown, and no effective treatments are available. This project will provide new insights using genetic, medication-based and other approaches in a mouse model, along with single-cell gene expression studies conducted with cells from mice and human patients who have this condition. The analyses will help provide targeted, safe, and effective treatment approaches for individuals with interstitial cystitis/bladder pain syndrome.
1U19NS130607-01
INTERCEPT: Integrated Research Center for Human Pain Tissues Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NINDS WASHINGTON UNIVERSITY GEREAU, ROBERT W Saint Louis, MO 2022
FOA Title: HEAL Initiative: Discovery and Functional Evaluation of Human Pain-associated Genes and Cells (U19 Clinical Trial Not Allowed)
FOA Number: NS22-018
Summary:

This project will use a variety of state-of-the-art technologies to generate a comprehensive  gene expression map of human peripheral nerves. The research will enhance understanding about genes involved in various painful conditions associated with nerve damage (neuropathies) resulting from injury or disease. This research will analyze DNA sequences of individual neuronal and non-neuronal cells in human nerve cells (from individuals with and without pain located outside the spinal cord that are involved in pain signal transmission. The findings, together with other imaging and computational approaches, will be used to generate a spatial atlas of the human dorsal root ganglia – a key hub for pain communication between the brain and spinal cord.
1RF1NS130481-01
Immune Modulating Therapies to Treat Complex Regional Pain Syndrome Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NINDS DREXEL UNIVERSITY AJIT, SEENA Philadelphia, PA 2022
FOA Title: HEAL Initiative: Discovery and Validation of Novel Targets for Safe and Effective Pain Treatment (R01 Clinical Trial Not Allowed)
FOA Number: NS22-034
Summary:

Complex regional pain syndrome is a difficult-to-treat chronic condition that causes excess and prolonged pain and inflammation after injury to an arm or leg and includes damage to skin of affected limbs. Although it is known that aberrant immune system function plays a role in this condition, the details remain unclear about how this occurs – in particular, through the adaptive immune system that relies on specialized immune cells and antibodies to protect the body from harm.  This project will study the role of certain immune cells (T cells) that circulate throughout the body or reside in bone using both rat or human bone samples from patients with complex regional pain syndrome.
1R01HD110922-01
CMG2 as a Target for Safe and Effective Treatment of Endometriosis-Associated Pain Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NICHD BOSTON CHILDREN'S HOSPITAL ROGERS, MICHAEL SEAN Boston, MA 2022
FOA Title: HEAL Initiative: Discovery and Validation of Novel Targets for Safe and Effective Pain Treatment (R01 Clinical Trial Not Allowed)
FOA Number: NS22-034
Summary:

Endometriosis is an often-painful disorder in which uterine tissue grows outside the uterus. Treatment of endometriosis-associated pain involves use of opioids in many women. This project aims to study a culprit gene thought to be involved with the disorder (capillary morphogenesis gene or CMG2) as a target for new, nonopioid pain medications. The research will also clarify how CMG2 s affects endometriosis-associated pain to test the effects of new medications for endometriosis pain.
1U19NS130608-01
Human Nociceptor and Spinal Cord Molecular Signature Center Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NINDS UNIVERSITY OF TEXAS DALLAS PRICE, THEODORE J; CURATOLO, MICHELE; DOUGHERTY, PATRICK M Richardson, TX 2022
FOA Title: HEAL Initiative: Discovery and Functional Evaluation of Human Pain-associated Genes and Cells (U19 Clinical Trial Not Allowed)
FOA Number: NS22-018
Summary:

This project will identify molecular characteristics of human sensory neurons and non-neuronal cells from the human dorsal root ganglia. This structure located outside the spinal cord is integrally involved in communicating pain signals to and from the brain. The research will use molecular approaches to characterize tissues obtained from organ donors and in patients who experience chronic pain. The findings will also help generate a connectivity map, or “connectome,” of nerve cell connections between the dorsal root ganglia of the spinal cord and the brain.
1R01DE032501-01
Targeting HB-EGF and Trigeminal EGFR for Oral Cancer Pain and Opioid Tolerance Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NIDCR NEW YORK UNIVERSITY YE, YI New York, NY 2022
FOA Title: HEAL Initiative: Discovery and Validation of Novel Targets for Safe and Effective Pain Treatment (R01 Clinical Trial Not Allowed)
FOA Number: NS22-034
Summary:

Oral cancers are painful and often require use of opioid medications to manage pain. However, the effectiveness of opioids often wanes quickly, and many patients require higher doses because they develop tolerance to these medications. This project will study the potential value of blocking epidermal growth-factor receptors interacting with peripheral nerves to treat oral cancer pain. The findings will advance understanding of the molecular mechanisms underlying oral cancer pain and provide a rationale for repurposing epidermal growth-factor receptor blockers, which is already approved for head and neck cancer treatment for treating oral cancer and associated pain.
3R01DE029951-01S1
Targeting Endosomal Receptors for Treatment of Chronic Pain Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NIDCR NEW YORK UNIVERSITY BUNNETT, NIGEL W New York, NY 2021
FOA Title: Notice of Special Interest to Encourage Eligible NIH HEAL Initiative Awardees to Apply for PA-20-222: Research Supplements to Promote Diversity in Health-Related Research (Admin Supp - Clinical Trial Not Allowed)
FOA Number: NOT-NS-20-107
Summary:

G protein-coupled receptors (GPCRs) are the largest family of transmembrane signaling proteins and play important roles in inflammation and pain. GPCR signaling is fast and temporary, making it hard to measure in clinical studies of potential drugs to interfere with the signaling. This research is using selectively designed nanoparticles to stimulate or block GPCRs toward identifying new treatments for oral cancer pain. This award will use a new nanoformulation approach to understand how nanoparticles affect nerve function by i) testing the effects of continuous release of a GPCR inhibitor in an oral cancer microenvironment and ii) investigating the influence of various physicochemical characteristics of nanoparticles on nerve function in an oral cancer microenvironment.
1R01AR077890-01
Validation of Novel Target for OA Treatment Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NINDS UNIVERSITY OF ILLINOIS AT CHICAGO SAMPEN, HEE-JEONG IM; LASCELLES, DUNCAN Chicago, IL 2020
FOA Title: Discovery and Validation of Novel Targets for Safe and Effective Pain Treatment (R01 Clinical Trial Not Allowed)
FOA Number: RFA-NS-18-043
Summary:

Osteoarthritis (OA) is the most common form of arthritis and a leading cause of pain and disability. Current challenges of managing OA are that there is no OA disease-modifying drug available, there are few effective treatment strategies, and there is an over-reliance on the use of opioids to manage OA-related joint pain. This project aims to validate vascular endothelial growth factor receptors 1 and 2 (VEGFR 1 receptor = Flt1) and (VEGFR 2 receptor = Flk1) as novel therapeutic targets for OA. This is based on a hypothesis that blocking these two specific receptors of VEGF will inhibit cartilage tissue degeneration and alleviate pain symptoms. This study will test the role of VEGFR-1 and -2 in multiple OA animal models using multiple available VEGF inhibitor molecules. The findings from these studies will develop a rationale for future clinical trials to target VEGFR-1 and -2 for OA patients and develop a novel non-addictive treatment for both joint pain and OA pathology.
3R01AT010757-02S1
The study of Gpr149 in nociception and the peripheral action of minor cannabinoids Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NCCIH UNIVERSITY OF CALIFORNIA, SAN FRANCISCO HELLMAN, JUDITH San Francisco, CA 2020
FOA Title: Notice of Special Interest for HEAL Initiative: Request for Administrative Supplements to Existing Grants for Identification and Validation of New Pain and Opioid Use Disorder Targets within the Understudied Druggable Genome
FOA Number: NOT-TR-20-008
Summary:

The cannabis plant contains many active compounds known collectively as cannabinoids that have been shown to possess analgesic and anti-inflammatory properties. These compounds exert their biological activity, in part, through the cannabinoid receptor. The cannabinoid receptor is a member of a class of proteins known as G-protein coupled receptors (GPCRs). This study will test whether a GPCR with unknown biological function, called Gpr149, has a role in the activity of cannabinoids. The study will identify and characterize Gpr149 expression in mouse cells, and deeply characterize the action of minor cannabinoids, endocannabinoids and products of inflammation to modulate Gpr149. This research will provide insight into the analgesic and anti-inflammatory action of minor cannabinoids and into the role of Gpr149 in nociception and the sensitization of nociceptors to inflammatory mediators.
1R01DE029951-01
Targeting Endosomal Receptors for Treatment of Chronic Pain Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NINDS COLUMBIA UNIVERSITY HEALTH SCIENCES BUNNETT, NIGEL W; SCHMIDT, BRIAN L New York, NY 2020
FOA Title: Discovery and Validation of Novel Targets for Safe and Effective Pain Treatment (R01 Clinical Trial Not Allowed)
FOA Number: RFA-NS-18-043
Summary:

Many non-opioid drugs target G Protein-Coupled Receptors (GPCRs), a family of proteins involved in many pathophysiological processes including pain, fail during clinical trials for unknown reasons. A recent study found GPCRs not only function at the surface of nerve cells but also within a cell compartment called the endosome, where their sustained activity drives pain. This study will build upon this finding and test whether the clinical failure of drugs targeting plasma membrane GPCRs is related to their inability to target and engage endomsomal GPCRs (eGPCRs). This study will use stimulus-responsive nanoparticles (NP) to encapsulate non-opioid drugs and selectively target eGPCR dyads to investigate how eGCPRs generate and regulate sustained pain signals in neuronal subcellular compartments. This study will also validate eGCPRs as therapeutic targets for treatment of chronic inflammatory, neuropathic and cancer pain. Using NPs to deliver non-opioid drugs, individually or in combinations, directly into specific compartments in nerve cells could be a potential strategy for new pain therapies.
1R01NS116759-01
Validating ASCT2 for the Treatment of Chronic Postsurgical Pain Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NINDS UNIVERSITY OF MARYLAND BALTIMORE MELEMEDJIAN, OHANNES KEVORK Baltimore, MD 2020
FOA Title: Discovery and Validation of Novel Targets for Safe and Effective Pain Treatment (R01 Clinical Trial Not Allowed)
FOA Number: RFA-NS-18-043
Summary:

Pain associated with surgery is experienced by millions of patients every year. Although post-surgical pain usually resolves as the surgical site heals, up to half of the patients develop chronic pain after surgery. Opioids remain the mainstay treatment for post-surgical pain which are fraught with serious side-effects and abuse liabilities. The endogenous mechanism that leads to the resolution of post-surgical pain remain unclear, specifically the effects of surgery on the metabolism of sensory neurons and how those changes influence the resolution of post-surgical pain are not known. Preliminary findings suggest that surgical trauma suppresses pyruvate oxidation while increased glutamine catabolism was associated with the resolution of post-surgical pain. This project will test the hypothesis that tissue incision and surgery disrupt the expression of the glutamine transporter ASCT2, which then prevents the resolution of post-incisional pain and aims to validate ASCT2 as a therapeutic target. This project will also employ pharmacological, genetic and animal pain model studies test a novel RNA expression-based strategy to enhance ASCT2 expression in DRG sensory neurons and alleviate postoperative pain in animal model systems. Successful completion of this project would validate ASCT2 as a novel endogenous non-opioid and non-addictive mechanism-based target for the resolution of postoperative pain.
3U44NS115692-01S1
Development and Optimization of MNK Inhibitors for the Treatment of Neuropathic Pain Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NINDS 4E THERAPEUTICS INC. SAHN, JAMES JEFFREY Austin, TX 2020
FOA Title: Notice of Special Interest for HEAL Initiative: Request for Administrative Supplements to Existing Grants for Identification and Validation of New Pain and Opioid Use Disorder Targets within the Understudied Druggable Genome
FOA Number: NOT-TR-20-008
Summary:

There is an urgent unmet need for more efficacious analgesics that act via a non-opioid pathway. Mitogen Activated Protein Kinase-interacting kinase 2 (MNK2) is an enzyme that has been implicated in pain signaling, and there is compelling evidence that inhibiting MNK2 has significant pain-reducing effects with few side-effects. Since MNK2 selective inhibitors have not yet been identified, selective inhibition of MNK2 with a small molecule has not been possible. The development of such compounds will enable studies that will illuminate key differences between MNK2 and MNK1. More importantly, from a therapeutic standpoint, highly selective MNK2 inhibitors may prove to have enhanced efficacy and a more favorable side-effect profile than molecules that inhibit both MNK2 and MNK1. This project will support the design and synthesis of at least one MNK2 inhibitor, with >100-fold selectivity over MNK1, that may be developed into a lead compound for treating neuropathic pain.
1R01NS118563-01A1
FKBP51 Antagonism to Prevent Chronic Pain: Optimizing Efficacy & Evaluating Safety and Mechanisms Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NINDS UNIV OF NORTH CAROLINA CHAPEL HILL LINNSTAEDT, SARAH ; MCLEAN, SAMUEL A Chapel Hill, NC 2020
FOA Title: Discovery and Validation of Novel Targets for Safe and Effective Pain Treatment (R01 Clinical Trial Not Allowed)
FOA Number: RFA-NS-18-043
Summary:

A substantial proportion of Americans seeking emergency care after traumatic stress exposure (TSE) are at a high risk of chronic pain and opioid use/misuse. Physiologic systems involved in the stress response could possibly play a critical role in the development of chronic pain after TSE. FK506-binding protein 51 (FKBP51) is an intracellular protein known to affect glucocorticoid negative feedback inhibition and component of stress response, provides an important non-opioid therapeutic target for such chronic pain. This project will test the hypothesis that functional inhibition of FKBP51 prevents or reduces enduring stress-induced hyperalgesia in a timing, dose, and duration-dependent manner in animal models of single prolonged stress alone and in combination with surgery. This project will also test if FKBP51 inhibition enhances recovery following TSE via reduction in pro-inflammatory responses in peripheral and central tissues. It will also test whether FKBP51 inhibition effects cardiotoxicity or addiction. Completion of these studies will increase understanding of FKBP51 as a novel therapeutic target for the prevention of chronic pain and opioid use/misuse resulting from TSE.
3UG3TR003149-02S1
Supplement to hiPSC-based DRG Tissue Mimics on Multi-well Microelectrode Arrays as a Tissue Chip Model of Acute and Chronic Nociception Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NCATS UNIVERSITY OF TEXAS DALLAS BLACK, BRYAN JAMES Dallas, TX 2020
FOA Title: Notice of Special Interest for HEAL Initiative: Request for Administrative Supplements to Existing Grants for Identification and Validation of New Pain and Opioid Use Disorder Targets within the Understudied Druggable Genome
FOA Number: NOT-TR-20-008
Summary:

This study aims to determine whether a subset of understudied genes that are expressed in human and mouse dorsal root ganglia (DRG) tissues (critical for relaying the sensation of pain from the body to the central nervous system), are also expressed in human induced pluripotent stem cell DRG mimetics. The study will also determine if these genes are involved in neuronal excitability changes under inflammatory conditions and compare these responses to those of primary DRG neurons. Third and finally, the study will optimize genetic depletion of target genes enabling future fundamental and preclinical research studies.
3R01NS111929-01A1S1
Anatomic, Physiologic and Transcriptomic Mechanisms of Neuropathic Pain in Human DRG Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NINDS UNIVERSITY OF TX MD ANDERSON CAN CTR DOUGHERTY, PATRICK M Houston, TX 2020
FOA Title: Notice of Special Interest for HEAL Initiative: Request for Administrative Supplements to Existing Grants for Identification and Validation of New Pain and Opioid Use Disorder Targets within the Understudied Druggable Genome
FOA Number: NOT-TR-20-008
Summary:

Using neural tissues from pain patients, this project will investigate mechanisms of neuronal and/or immune dysfunction driving chronic pain. The researchers will use spatial transcriptomics on human dorsal root ganglion (DRG) and spinal cord tissues to examine the cellular expression profile for these targets using the 10X Genomics Visium technology. The use of tissues from control surgical patients and organ donors as well as surgical patients with neuropathic pain will enable validation of expression of these targets in human tissue as well as indication of their potential involvement in neuropathic pain. This collaborative effort will use DRGs removed from pain-phenotyped patients during neurological surgery, as well as lumbar DRGs and spinal cord from organ donors. This study will map the spatial transcriptomes at approximately single cell resolution in the human DRG and spinal cord.
1R01NS118504-01
Targeting GPCRs in Amygdalar and Cortical Neural Ensembles to Treat Pain Aversion Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NINDS UNIV OF NORTH CAROLINA CHAPEL HILL SCHERRER, GREGORY Chapel Hill, NC 2020
FOA Title: Discovery and Validation of Novel Targets for Safe and Effective Pain Treatment (R01 Clinical Trial Not Allowed)
FOA Number: RFA-NS-18-043
Summary:

There is a distinct neural ensemble in the brain that encodes the negative affective valence of pain. This project will identify novel targets to treat pain by determining the molecular identity of these BLA nociceptive cells via in situ hybridization and single cell RNAsequencing (scRNA-seq). Resolving the molecular identity of these ACC nociceptive cells will also reveal new targets to treat pain affect. To achieve these results the project will catalog candidate Gi/o-GPCR targets in BLA and ACC, test their utility to treat pain, and verify these new targets have no effect in the brain?s reward and breathing circuitry. The experiments in this project will also evaluate each target for abuse potential and effects on breathing by using behavioral assays for reward processing and whole-body plethysmography, respectively. To evaluate whether our results in rodents are likely to translate clinically, there will be an analysis of expression patterns of these drug targets in human tissue using in situ hybridization.
3R37DA020686-13S1
Role for Tas2Rs in opioid addiction Preclinical and Translational Research in Pain Management Discovery and Validation of Novel Targets for Safe and Effective Treatment of Pain NIDA ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI KENNY, PAUL J. New York, NY 2020
FOA Title: Notice of Special Interest for HEAL Initiative: Request for Administrative Supplements to Existing Grants for Identification and Validation of New Pain and Opioid Use Disorder Targets within the Understudied Druggable Genome
FOA Number: NOT-TR-20-008
Summary:

Opioids and other addictive substances have powerful rewarding properties that drive the development of addiction. They also have aversive properties that motivate their avoidance and protect against addiction. This project will explore the role of Type 2 Taste Receptor proteins (Tas2Rs or T2Rs) in regulating the aversive properties of opioids, potentially establishing an entirely new class of receptors that can be targeted for the development of novel addiction therapeutics.