Gökhan S. Hotamisligil

Gökhan S. Hotamisligil (Turkish: Gökhan Sıddık Hotamışlıgil;[1] born June 24, 1962) is a Turkish-American physician scientist; James Stevens Simmons Chair of Genetics and Metabolism at Harvard T.H. Chan School of Public Health (HSPH); Director of the Sabri Ülker Center for Metabolic Research[2] and associate member of Harvard-MIT Broad Institute, Harvard Stem Cell Institute and the Joslin Diabetes Center.[3]

Gökhan S. Hotamisligil
Born (1962-06-24) June 24, 1962
Rize, Turkey
CitizenshipTurkey and US
Alma materAnkara University (MD, 1986)
Harvard University (PhD, 1994)
SpouseSelen Ciliv Hotamisligil
Children2
Scientific career
FieldsMetabolism, obesity, diabetes, atherosclerosis
InstitutionsHarvard T.H. Chan School of Public Health

Hotamisligil has been a pioneer in research efforts to explain the mechanistic basis of common chronic metabolic diseases; particularly obesity, diabetes, fatty liver disease, and atherosclerosis. His work has led to the emergence of novel concepts that have altered the understanding of metabolic disease pathogenesis.[4]

Biography

Gökhan Hotamisligil was born in Rize, Turkey and after attending elementary schools in Vakfikebir, Turgutlu, and Gediz; he graduated from the public Ankara Atatürk Anadolu High School in 1980. He then received his degree in medicine from Ankara University Medical School in 1986 and his PhD from Harvard Medical School (HMS) in 1994. Hotamisligil joined the Harvard T.H. Chan School of Public Health (HSPH) as an assistant professor in the Department of Nutrition & Division of Biological Sciences. He was promoted to tenured professor in 2003. He founded the Department of Genetics & Complex Diseases in the same year and served as the chair of the department.[5]

In 2014, the Sabri Ülker Center for Nutrient, Genetic, and Metabolic Research at HSPH was established by the Ülker family to honor their late father Sabri Ülker and to support the research in the laboratory of Hotamisligil.[6] Dr. Hotamisligil is the founding Director of the Sabri Ülker Center at Harvard.

Hotamisligil has been recognized with many fellowships and awards over the course of his career. These include election as a fellow of the American Association for the Advancement of Science,[7] the Naomi Berrie Award for Outstanding Achievement in Diabetes Research,[8] the Outstanding Scientific Accomplishment Award from the American Diabetes Association,[9] the Wertheimer Award for Outstanding Basic Research Contributions in the field of obesity from IASO,[10] the Danone International Prize for Nutrition,[11] and the Roy Greep Award for Outstanding Research from the Endocrine Society,[12] EASD–Novo Nordisk Foundation Diabetes Prize for Excellence,[13] among others. He has also been the recipient of 2004 TUBITAK Science Award,[14] Koç Science Award[15][16] and elected member of the Turkish Academy of Sciences. He also serves as a member of the board of trustees of Kadir Has University. Hotamisligil serves in many editorial boards including Science Translational Medicine, Cell Metabolism, EMBO molecular Medicine, Journal of Clinical Investigation, PlosBiology, and others.

Research

Hotamisligil’s research efforts focus on the molecular and genetic basis of common and complex diseases, particularly obesity, diabetes, and heart disease. His research examines the mechanisms of nutrient sensing and response pathways as they relate to immune and metabolic homeostasis. Hotamisligil’s work has been instrumental in the emergence of the immunological basis of obesity and diabetes and the field of immunometabolism[17],[18],.[4] Today obesity and diabetes are understood as states of chronic, low-grade, sustained, systemic and metabolically orchestrated inflammation; also known as “metaflammation,” a concept introduced by Hotamisligil; which underlies the pathogenesis of metabolic diseases.

In a 2002 paper, the Hotamisligil lab established a link between activation of the inflammatory and stress kinase JNK and consequent inhibition of insulin receptor signaling via phosphorylation of the insulin receptor substrate (IRS-1).[19] Since then, his lab has identified multiple other significant molecules and pathways as key modulators of chronic metabolic inflammation, insulin sensitivity and glucose metabolism in obesity, including the double stranded RNA dependent protein kinase PKR[20] and the transmembrane protein STAMP2.[21][22]

The Hotamisligil lab also established the importance of organelle homeostasis in metabolic tissues and the role of organelle dysfunction in metabolic disease. In particular, they established that chronic endoplasmic reticulum (ER) dysfunction is a feature of metabolic tissues in obesity,[23] linked to regulation of insulin action and glucose and lipid metabolism. In subsequent studies they showed that the increase in ER stress in the obese condition is in part related to defects in autophagy, the cellular recycling system,[24] as well as changes in lipid metabolism and ER membrane composition and result in alterations ER calcium homeostasis.[25] Recently, the Hotamisligil lab also delineated abnormal interactions between ER and mitochondria in the context of metabolic disease that result in aberrant calcium metabolism and mitochondrial dysfunction.[26]

Hotamisligil lab integrates these cellular and molecular stress pathways to nutrients through their work in an integrated field on lipid trafficking and signaling with a focus on fatty acid binding proteins,[27] de novo lipogenesis products.[28] In a 2008 paper, Hotamisligil lab described a lipid natured hormone, which they named as a “lipokine” and showed its beneficial actions on lipid and glucose metabolism.[29] In 2015, Hotamisligil lab described a novel hormone that is produced by the adipose tissue during fasting to regulate hepatic glucose production and pancreatic activity.[30] Therapeutic targeting of both of these molecules is pursued for the treatment of metabolic diseases.[31] In a 2017 paper, Hotamisligil lab has identified a transcription factor, NRF1, that both senses and responds to excess cholesterol in the ER[32] and acts together with SREBP2 as yin-yang to keep ER cholesterol levels within a safe, narrow range.[33]

As of 2019, Hotamisligil has authored over 185 publications, which have received in excess of 85,000 citations and was named as an inventor on multiple patents.[5][34] He has an h-index of 105.[5] Hotamisligil has also been a mentor to many students and fellows who are now pursuing their independent scientific careers in many capacities around the world.[35] He has been an advocate of science as a vehicle of diplomacy between cultures and delivered more than 300 lectures around the world.[5]

Personal life

Hotamisligil is married to Selen Ciliv, a physician scientist specialized in assisted infertility treatment technologies and clinical applications and a consultant to World Health Organization.[36] Their two children Leyla and Derin live in the United States and Canada.[37] His late father Hulki Hotamisligil was a physician and mother Güner Hotamisligil was a teacher who served in remote regions of Turkey to support public health and education.[38][39]

Selected awards

1991 Lucille P. Markey Predoctoral Fellowship in Developmental Biology[5]

1997 Pew Scholar in Biomedical Sciences, Pew Charitable Trusts[5]

2004 Recipient of the Turkish Scientific and Research Council, TUBITAK Award[14]

2007 Outstanding Scientific Accomplishment Award, American Diabetes Association[9]

2009 Elected Fellow of American Association for Advancement of Science[7]

2010 Wertheimer Award, International Association for the Study of Obesity[10]

2010 Naomi Berrie Award for Outstanding Achievement in Diabetes Research[8]

2012 Richard J. Havel Lecture[5]

2013 Koç Foundation Science Award[15][16]

2014 Danone International Prize for Nutrition[11]

2015 Roy O. Greep Award for Outstanding Research, Endocrine Society[12]

2017 Hans L. Falk Memorial Lecture[40]

2018 EASD–Novo Nordisk Foundation Diabetes Prize for Excellence[13]

References
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  4. Hotamisligil, Gökhan S. (February 8, 2017). "Inflammation, metaflammation and immunometabolic disorders". Nature. 542 (7640): 177–185. Bibcode:2017Natur.542..177H. doi:10.1038/nature21363. ISSN 1476-4687. PMID 28179656. S2CID 205253771.
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  20. Nakamura, Takahisa; Furuhashi, Masato; Li, Ping; Cao, Haiming; Tuncman, Gurol; Sonenberg, Nahum; Gorgun, Cem Z.; Hotamisligil, Gökhan S. (2010-02-05). "Double-stranded RNA-dependent protein kinase links pathogen sensing with stress and metabolic homeostasis". Cell. 140 (3): 338–348. doi:10.1016/j.cell.2010.01.001. ISSN 1097-4172. PMC 2820414. PMID 20144759.
  21. Wellen, Kathryn E.; Fucho, Raquel; Gregor, Margaret F.; Furuhashi, Masato; Morgan, Carlos; Lindstad, Torstein; Vaillancourt, Eric; Gorgun, Cem Z.; Saatcioglu, Fahri (2007-05-04). "Coordinated regulation of nutrient and inflammatory responses by STAMP2 is essential for metabolic homeostasis". Cell. 129 (3): 537–548. doi:10.1016/j.cell.2007.02.049. ISSN 0092-8674. PMC 2408881. PMID 17482547.
  22. ten Freyhaus, Henrik; Calay, Ediz S.; Yalcin, Abdullah; Vallerie, Sara N.; Yang, Ling; Calay, Zerrin Z.; Saatcioglu, Fahri; Hotamisligil, Gökhan S. (2012-07-03). "Stamp2 controls macrophage inflammation through nicotinamide adenine dinucleotide phosphate homeostasis and protects against atherosclerosis". Cell Metabolism. 16 (1): 81–89. doi:10.1016/j.cmet.2012.05.009. ISSN 1932-7420. PMC 4163924. PMID 22704678.
  23. Ozcan, Umut; Cao, Qiong; Yilmaz, Erkan; Lee, Ann-Hwee; Iwakoshi, Neal N.; Ozdelen, Esra; Tuncman, Gürol; Görgün, Cem; Glimcher, Laurie H. (2004-10-15). "Endoplasmic reticulum stress links obesity, insulin action, and type 2 diabetes". Science. 306 (5695): 457–461. Bibcode:2004Sci...306..457O. doi:10.1126/science.1103160. ISSN 1095-9203. PMID 15486293. S2CID 22517395.
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  25. Fu, Suneng; Yang, Ling; Li, Ping; Hofmann, Oliver; Dicker, Lee; Hide, Winston; Lin, Xihong; Watkins, Steven M.; Ivanov, Alexander R. (2011-05-26). "Aberrant lipid metabolism disrupts calcium homeostasis causing liver endoplasmic reticulum stress in obesity". Nature. 473 (7348): 528–531. Bibcode:2011Natur.473..528F. doi:10.1038/nature09968. ISSN 1476-4687. PMC 3102791. PMID 21532591.
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