Matthew J. Merrins, PhD
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Merrins Lab
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Merrins Lab
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Merrins Lab
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Joseph F. Hoffman Professor of Cellular and Molecular Physiology
Biography
Matthew J. Merrins, PhD is a Professor of Cellular & Molecular Physiology at the Yale School of Medicine. His research is focused on understanding how nutrient sensing is coupled to hormone secretion in pancreatic islet cells. A major focus of the lab is the use of fluorescence microscopy to study cellular metabolism in real time. The laboratory has expertise in several different imaging modalities including spinning disk confocal, TIRF, STED, multi-photon, and light-sheet microscopy. Dr. Merrins is best known for his work on β-cell glucose sensing, including the discovery that glycolytic metabolons, rather than mitochondria, locally generate the signal to initiate insulin secretion. Translational research in the laboratory is focused on targeting the glycolytic enzyme pyruvate kinase for the treatment of metabolic disorders. Dr. Merrins participates in multiple graduate programs, and his trainees have gone on to successful careers in research and STEM education. In the classroom, Dr. Merrins has taught endocrinology and metabolism to undergraduate, graduate, and medical students. Dr. Merrins is an academic co-founder of State 4 Therapeutics, an emerging Yale-based obesity pharmacotherapeutics company.
Appointments
Cellular & Molecular Physiology
ProfessorPrimary
Other Departments & Organizations
Education & Training
- Postdoctoral Fellow
- University of Michigan (2014)
- PhD
- University of Michigan, Physiology (2008)
- BA
- Oberlin College, Biochemistry & Biology (Honors) (2001)
Research
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Overview
Islet biology, metabolism, mitochondria, GPCRs, type 2 diabetes, obesity, electrophysiology, live-cell imaging among research interests.
Medical Research Interests
ORCID
0000-0003-1599-9227- View Lab Website
Merrins Lab
Research at a Glance
Yale Co-Authors
Publications Timeline
Research Interests
Richard Kibbey, MD, PhD
Evgeniy Potapenko
Jing Hughes, MD, PhD
Raghav Sehgal, PhD
Obesity
Diabetes Mellitus, Type 2
Electrophysiology
Receptors, G-Protein-Coupled
Publications
2026
Amino Acid Sensing by the α-Cell Mitochondrial Phosphoenolpyruvate Cycle Regulates Intracellular Ca2+ Levels Without Affecting Glucagon Secretion.
Jin E, Foster H, Potapenko E, Huang S, Dong X, Hughes J, Merrins M. Amino Acid Sensing by the α-Cell Mitochondrial Phosphoenolpyruvate Cycle Regulates Intracellular Ca2+ Levels Without Affecting Glucagon Secretion. Diabetes 2026, 75: 483-493. PMID: 41525135, PMCID: PMC12928745, DOI: 10.2337/db25-0510.Peer-Reviewed Original ResearchThis study investigates how amino acid sensing in pancreatic α-cells via the mitochondrial phosphoenolpyruvate cycle regulates calcium levels but does not influence glucagon secretion, which is crucial for understanding diabetes-related glucagon dysregulation.
2025
Compartmentalized Nutrient and Hormone Sensing in β-Cells: the Role of Primary Cilia
Hughes J, Merrins M. Compartmentalized Nutrient and Hormone Sensing in β-Cells: the Role of Primary Cilia. Physiology 2025, 41: 344-351. PMID: 41432705, PMCID: PMC12875570, DOI: 10.1152/physiol.00042.2025.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsThis study reviews how primary cilia in pancreatic beta cells influence insulin secretion by sensing nutrients and hormones, highlighting their potential role in diabetes.β-cell Gɑs signaling is critical for physiological and pharmacological enhancement of insulin secretion
Capozzi M, Bouslov D, Sargsyan A, Chan M, Chen A, Gray S, Viloria K, Bareja A, Douros J, Lewandowski S, Tong J, Hasib A, Cuozzo F, Ross E, Foster M, Weinstein L, Hussain M, Merrins M, Willard F, Huising M, Sloop K, Hodson D, D’Alessio D, Campbell J. β-cell Gɑs signaling is critical for physiological and pharmacological enhancement of insulin secretion. Journal Of Clinical Investigation 2025, 135: e183741. PMID: 40526441, PMCID: PMC12352888, DOI: 10.1172/jci183741.Peer-Reviewed Original ResearchCitationsAltmetricCRISP: correlation-refined image segmentation process
Briggs J, Jin E, Merrins M, Benninger R. CRISP: correlation-refined image segmentation process. BMC Bioinformatics 2025, 26: 135. PMID: 40419943, PMCID: PMC12105354, DOI: 10.1186/s12859-025-06150-z.Peer-Reviewed Original ResearchCitationsAltmetricGlucokinase activity controls peripherally located subpopulations of β-cells that lead islet Ca2+ oscillations
Jin E, Briggs J, Benninger R, Merrins M. Glucokinase activity controls peripherally located subpopulations of β-cells that lead islet Ca2+ oscillations. ELife 2025, 13: rp103068. PMID: 39936635, PMCID: PMC11820133, DOI: 10.7554/elife.103068.Peer-Reviewed Original ResearchCitationsAltmetricGlucokinase activity controls peripherally located subpopulations of β-cells that lead islet Ca2+ oscillations
Jin E, Briggs J, Benninger R, Merrins M. Glucokinase activity controls peripherally located subpopulations of β-cells that lead islet Ca2+ oscillations. ELife 2025, 13 DOI: 10.7554/elife.103068.3.Peer-Reviewed Original ResearchCitations
2024
Author Correction: Intra-islet α-cell Gs signaling promotes glucagon release
Liu L, EI K, Dattaroy D, Barella L, Cui Y, Gray S, Guedikian C, Chen M, Weinstein L, Knuth E, Jin E, Merrins M, Roman J, Kaestner K, Doliba N, Campbell J, Wess J. Author Correction: Intra-islet α-cell Gs signaling promotes glucagon release. Nature Communications 2024, 15: 6383. PMID: 39075062, PMCID: PMC11286759, DOI: 10.1038/s41467-024-50810-2.Commentaries, Editorials and LettersIntra-islet α-cell Gs signaling promotes glucagon release
Liu L, El K, Dattaroy D, Barella L, Cui Y, Gray S, Guedikian C, Chen M, Weinstein L, Knuth E, Jin E, Merrins M, Roman J, Kaestner K, Doliba N, Campbell J, Wess J. Intra-islet α-cell Gs signaling promotes glucagon release. Nature Communications 2024, 15: 5129. PMID: 38879678, PMCID: PMC11180188, DOI: 10.1038/s41467-024-49537-x.Peer-Reviewed Original ResearchCitationsAltmetricLeucine Suppresses α-Cell cAMP and Glucagon Secretion via a Combination of Cell-Intrinsic and Islet Paracrine Signaling.
Knuth E, Foster H, Jin E, Ekstrand M, Knudsen J, Merrins M. Leucine Suppresses α-Cell cAMP and Glucagon Secretion via a Combination of Cell-Intrinsic and Islet Paracrine Signaling. Diabetes 2024, 73: 1426-1439. PMID: 38870025, PMCID: PMC11333377, DOI: 10.2337/db23-1013.Peer-Reviewed Original ResearchCitationsAltmetricGlucose Regulation of β-Cell KATP Channels: It Is Time for a New Model!
Merrins M, Kibbey R. Glucose Regulation of β-Cell KATP Channels: It Is Time for a New Model! Diabetes 2024, 73: 856-863. PMID: 38768366, PMCID: PMC11109790, DOI: 10.2337/dbi23-0032.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus StatementsCitationsAltmetric
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300 George Street
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Rm 2304
New Haven, CT 06511
300 George Street
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Rm 2320
New Haven, CT 06511
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