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Donald Scott

  • PROFESSOR Medicine, Endocrinology, Diabetes and Bone Disease
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Education

  • AB, University of Missouri

  • MA, University of Missouri

  • PhD, Saint Louis University

Biography

    Dr. Scott’s group works on the nutritional regulation of cellular phenotype.  His lab works on molecular mechanisms that coordinate how nutrients, especially glucose, alter the regulation of genes to change the phenotype of cells.  His work focuses on two glucose-sensing transcription factors, ChREBP and c-Myc.  He found that ChREBP activity requires the presence of c-Myc and is currently working out the molecular mechanisms of this relationship.  In addition, his lab, in collaboration with colleagues from the Metabolism Institute (Drs. Garcia-Ocaña, Vasavada, and Stewart) found that ChREBP is required for glucose-stimulated beta cell proliferation.  This work is funded by the NIH, the American Diabetes Association, and the Juvenile Diabetes Research Foundation.

    Dr. Scott is member of the Graduate Faculty and is affiliated with the Systems Biology of Disease and Therapeutics Multiple Training Area.

Publications

Collier JJ, Doan TT, Daniels MC, Schurr JR, Kolls JK, Scott DK. c-Myc is required for the glucose-mediated induction of metabolic enzyme genes. The Journal of biological chemistry 2003 Feb; 278(8).

Collier JJ, Scott DK. Sweet changes: glucose homeostasis can be altered by manipulating genes controlling hepatic glucose metabolism. Molecular endocrinology (Baltimore, Md.) 2004 May; 18(5).

Collier JJ, Zhang P, Pedersen KB, Burke SJ, Haycock JW, Scott DK. c-Myc and ChREBP regulate glucose-mediated expression of the L-type pyruvate kinase gene in INS-1-derived 832/13 cells. American journal of physiology. Endocrinology and metabolism 2007 Jul; 293(1).

Alonso LC, Yokoe T, Zhang P, Scott DK, Kim SK, O'Donnell CP, Garcia-Ocaña A. Glucose infusion in mice: a new model to induce beta-cell replication. Diabetes 2007 Jul; 56(7).

Cozar-Castellano I, Harb G, Selk K, Takane K, Vasavada R, Sicari B, Law B, Zhang P, Scott DK, Fiaschi-Taesch N, Stewart AF. Lessons from the first comprehensive molecular characterization of cell cycle control in rodent insulinoma cell lines. Diabetes 2008 Nov; 57(11).

Burke SJ, Collier JJ, Scott DK. cAMP opposes the glucose-mediated induction of the L-PK gene by preventing the recruitment of a complex containing ChREBP, HNF4alpha, and CBP. FASEB journal : official publication of the Federation of American Societies for Experimental Biology 2009 Sep; 23(9).

Graves JA, Metukuri M, Scott D, Rothermund K, Prochownik EV. Regulation of reactive oxygen species homeostasis by peroxiredoxins and c-Myc. The Journal of biological chemistry 2009 Mar; 284(10).

Huang W, Metlakunta A, Dedousis N, Zhang P, Sipula I, Dube JJ, Scott DK, O'Doherty RM. Depletion of liver Kupffer cells prevents the development of diet-induced hepatic steatosis and insulin resistance. Diabetes 2010 Feb; 59(2).

Fiaschi-Taesch NM, Salim F, Kleinberger J, Troxell R, Cozar-Castellano I, Selk K, Cherok E, Takane KK, Scott DK, Stewart AF. Induction of human beta-cell proliferation and engraftment using a single G1/S regulatory molecule, cdk6. Diabetes 2010 Aug; 59(8).

Zhang P, Metukuri MR, Bindom SM, Prochownik EV, O'Doherty RM, Scott DK. c-Myc is required for the CHREBP-dependent activation of glucose-responsive genes. Molecular endocrinology (Baltimore, Md.) 2010 Jun; 24(6).

Guthalu Kondegowda N, Joshi-Gokhale S, Harb G, Williams K, Zhang XY, Takane KK, Zhang P, Scott DK, Stewart AF, Garcia-Ocaña A, Vasavada RC. Parathyroid hormone-related protein enhances human ß-cell proliferation and function with associated induction of cyclin-dependent kinase 2 and cyclin E expression. Diabetes 2010 Dec; 59(12).

Karslioglu E, Kleinberger JW, Salim FG, Cox AE, Takane KK, Scott DK, Stewart AF. cMyc is a principal upstream driver of beta-cell proliferation in rat insulinoma cell lines and is an effective mediator of human beta-cell replication. Molecular endocrinology (Baltimore, Md.) 2011 Oct; 25(10).

Velazquez-Garcia S, Valle S, Rosa TC, Takane KK, Demirci C, Alvarez-Perez JC, Mellado-Gil JM, Ernst S, Scott DK, Vasavada RC, Alonso LC, Garcia-Ocaña A. Activation of protein kinase C-ζ in pancreatic β-cells in vivo improves glucose tolerance and induces β-cell expansion via mTOR activation. Diabetes 2011 Oct; 60(10).

Stefanovic-Racic M, Yang X, Turner MS, Mantell BS, Stolz DB, Sumpter TL, Sipula IJ, Dedousis N, Scott DK, Morel PA, Thomson AW, O'Doherty RM. Dendritic cells promote macrophage infiltration and comprise a substantial proportion of obesity-associated increases in CD11c+ cells in adipose tissue and liver. Diabetes 2012 Sep; 61(9).

Fiaschi-Taesch NM, Kleinberger JW, Salim F, Troxell R, Wills R, Tanwir M, Casinelli G, Cox AE, Takane KK, Scott DK, Stewart AF. A Human Pancreatic Beta Cell G1/S Molecule Cell Cycle Atlas. Diabetes 2013 Mar;.

Fiaschi-Taesch NM, Kleinberger JW, Salim F, Troxell R, Wills R, Tanwir M, Casinelli G, Cox AE, Takane KK, Srinivas H, Scott DK, Stewart AF. Cytoplasmic-Nuclear Trafficking of G1/S Cell Cycle Molecules and Adult Human Beta Cell Replication: A Revised Model of Human Beta Cell G1/S Control. Diabetes 2013 Mar;.

Metukuri MR, Zhang P, Basantani MK, Chin C, Stamateris RE, Alonso LC, Takane KK, Gramignoli R, Strom SC, O'Doherty RM, Stewart AF, Vasavada RC, Garcia-Ocaña A, Scott DK. ChREBP mediates glucose-stimulated pancreatic β-cell proliferation. Diabetes 2012 Aug; 61(8).

Industry Relationships

Physicians and scientists on the faculty of the Icahn School of Medicine at Mount Sinai often interact with pharmaceutical, device and biotechnology companies to improve patient care, develop new therapies and achieve scientific breakthroughs. In order to promote an ethical and transparent environment for conducting research, providing clinical care and teaching, Mount Sinai requires that salaried faculty inform the School of their relationships with such companies.

Dr. Scott did not report having any of the following types of financial relationships with industry during 2013 and/or 2014: consulting, scientific advisory board, industry-sponsored lectures, service on Board of Directors, participation on industry-sponsored committees, equity ownership valued at greater than 5% of a publicly traded company or any value in a privately held company. Please note that this information may differ from information posted on corporate sites due to timing or classification differences.

Mount Sinai's faculty policies relating to faculty collaboration with industry are posted on our website at http://icahn.mssm.edu/about-us/services-and-resources/faculty-resources/handbooks-and-policies/faculty-handbook. Patients may wish to ask their physician about the activities they perform for companies.

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