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  • Prof.  Yuval Dor
Prof Yuval Dor
Tissue dynamics: development, regeneration and failure in human disease
We are interested in the basic problem of organ size control and its implications on human health and disease: how is the proper size of organs determined and maintained? What are the cellular origins of tissues? What are the molecular signals that control tissue mass homeostasis and regeneration?
We study these problems in the context of the developing and adult pancreas, aiming to obtain insights of relevance for diabetes and pancreatic cancer. Most of our work focuses on the biology of insulin-producing beta cells. We wish to understand how beta cells are generated during embryonic development and in postnatal life, what controls beta cell mass in healthy and disease conditions and the mechanisms of beta cell failure in diabetes. Our work utilizes advanced transgenic mouse models allowing for tissue specific and conditional genetic manipulations in vivo, as well as cadaveric human material and human blood samples.
We work in very close collaboration with Ben Glaser (Hadassah medical center, Endocrinology). Additional local collaborators include Ittai Ben-Porath, Aharon Razin and Ruth Shemer (our department), Amir Eden (Hebrew University, Life Sciences), and Gidi Zamir, Adi Vaknin, Marc Gotkine, Aviad Zick, David Planer, Giora Landesberg and Zvi Friedlender (Hadassah medical center).
Our work is generously funded by the Juvenile Diabetes Research Foundation (JDRF), the European Union, the NIH (Human Islet Research Network), the Dutch friends of Hebrew University / DON foundation and the Israel Science Foundation.

Glucose metabolism as a central regulator of beta cell biology

We have previously shown that glucose, acting via glucose metabolism, is a major physiological driver of beta cell replication and regeneration (Porat et al., Cell Metabolism 2011). More recently, we described how hyper-glycolysis may also be toxic to beta cells, and can specifically cause double strand breaks in the DNA and activation of the tumor suppressor p53 (Tornovsky-Babeay et al., Cell Metabolism 2014). Ongoing efforts are aimed at understanding the significance of DNA damage in beta cells and in diabetes, and the pathways mediating the toxic and mitogenic effects of glucose on beta cells.
Glucose triggers beta cell proliferation via glycolysis 
Consequences of glucose metabolism in beta cells.The mitogenic effect of glucose mediated by classic GSIS pathway, specifically by calcineurin and insulin receptor controls replication.

The molecular signature of replicating beta cells

What does it mean to be a replicating beta cell in vivo? Which signaling pathways are active when quiescent beta cells enter the cell division cycle? Which genes are expressed in replicating beta cells? Are there any metabolic changes? Are there druggable targets? Answers to these questions require access to a pure population of replicating beta cells. However, beta cell replication is rare and current protocols for isolating these cells via FACS require fixation and processing that destroys sensitive biological material such as RNA. To overcome this problem we have developed a transgenic mouse strain that allows for the isolation of live replicating beta cells for global analysis of gene expression (Klochendler et al., Developmental Cell 2012; Klochendler et al., Diabetes 2016).
The Ccnb1-GFP transgene allows for the isolation of live replicating cells 
The Ccnb1-GFP transgene allows for the isolation of live replicating cells. Although GFP is expressed in all cells, it is rapidly degraded in quiescent (G0) and G1 cells (blue) and accumulates only in S/G2/M (green). In compound transgenic mice expressing Ccnb1-GFP and RipCre-RosaLSLTomato, quiescent (red) and replicating (yellow) beta-cells can be sorted live for RNA purification and transcriptome analysis.

Senescence in pancreas dynamics

We are studyingin collaboration with Ittai Ben-Porath how cellular senescence affects the function and replication of pancreatic beta cells, and how this powerful tumor suppression mechanism affects tissue dynamics in the exocrine pancreas in the context of early stages of pancreatic cancer.
Effects of p16-induced senescence on beta cell function 
Effects of p16-induced senescence on beta cell function. Components of the senescence program that contribute to increased insulin secretion are highlighted in red (Helman et al., Nature Medicine 2016)

Non-invasive detection of cell death in the human body

When cells die in the human body, their broken DNA is released to the circulation. Since each human tissue has a unique DNA methylation signature, analysis of methylation patterns in circulating DNA can in principle identify the tissue origins of cell-free circulating DNA as an indicator of cell death in specific tissues. We have developed a method to identify circulating DNA derived from specific tissues, and applied it to detect tissue-specific cell death in multiple pathologies including type 1 diabetes, cancer, neurodegeneration and trauma. We are working to develop this approach into a universal, minimally invasive methodfor early diagnosis and monitoring of multiple human diseases (Lehmann-Werman et al., PNAS 2016; Gala-Lopez, Neiman, et al., AMJ 2018; Zemmour et al., Nature Communications 2018; Lehmann-Werman et al., JCI Insight 2018; Moss et al., Nature Communications, 2018).
Non-invasive detection of cell death in the human body 

DNA methylation in pancreas development

The insulin gene promoter is unmethylated in beta cells but is heavily methylated elsewhere, providing a classic example of gene regulation by DNA methylation. We are studying how this pattern of methylation is established and what are the implications for developmental biology of the pancreas and for cellular plasticity in islets (Neiman et al., PNAS 2017).
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Lab Members
prof yuval dor 
Prof. Yuval Dor
Dr. Ruth Shemer 
Dr. Ruth Shemer
dr judith magenheim 
Dr. Judith Magenheim
Dr Agnes Klochendler 
Dr. Agnes Klochendler
Dr Miri Stolovich Rain 
Dr. Miri Stolovich-Rain
Dr Asael Lubotzky 
Dr. Asael Lubotzky
Dr Daniel Cohen 
Dr. Daniel Cohen
Dr Dror Kolodkin Gal 
Dr. Dror Kolodkin-Gal
Ayat Hija 
Dr. Ayat Hija
Tehila Kadosh 
Tehila Dahan
Norma Kidess-Bassir 
Norma Kidess-Bassir
Ehud (Udi) Knebel 
Ehud (Udi) Knebel

Dr. Mushira Abudia
Dr. Samir Abu Gazala
Dr. Shira Anzi
Dr. Noa Corem-Weinberg
Dr. Daniela Dadon
Dr. Avigail Dreazen
Dr. Elad Horwitz
Jonatan Enk
Tsuria Lax
Dr. Tsufit Gonen-Gross
Dr. Ronny Helman
Dr. Abed Khalaileh
Michal Maatuf
Dr. Tomer Nir
Dr. Shay Porat
Dr. Avital Swisa
Dr. Seth Salpeter
Dr. Rachel Schyr
Yael Sharir
Dr. Yaron Suissa
Dr. Batsheva Werman
Dr. Sharon Yagur
Dr. Oren Ziv
Dr. Merav Hecht
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81815 Genetic Animals Models of Human Diseases and Conditions
94640 Experience in a Research laboratory- Cancer & Metabolic diseases
94641 Experience in a research lab- genetics and genomics
94668 Biochemistry - Gene structure and Expression
94673 Metabolic and Physiologic Biochemistry
96205 Endocrinology and Reproduction
94858 Metabolic Syndrome​ 
Selected Publications
Jaafar, R., Tran, S., Shah, A., Sun, G., Valdearcos, M., Marchetti, P., Giacometti, S., Bernal-Mizrachi, E., Matveyenko, A., Hebrok, M., Dor, Y., Rutter, G.A., Koliwad, S.K., Bhushan, A. (2019). mTORC1 to AMPK switching underlies β-cell metabolic plasticity during maturation and diabetes. J Clin Invest. 130. pii: 127021. doi: 10.1172/JCI127021.
Shemer, R., Magenheim, J. and Dor, Y. (2019). Digital Droplet PCR for Monitoring Tissue‐Specific Cell Death Using DNA Methylation Patterns of Circulating Cell‐Free DNA. Curr Protoc Mol Biol, 127(1), e90.
Mandelbaum, A.D., Kredo-Russo, S., Aronowitz, D., Myers, N., Yanowski, E., Klochendler, A., Swisa, A., Dor, Y. and Hornstein, E. (2019). miR-17-92 and miR-106b-25 clusters regulate beta cell mitotic checkpoint and insulin secretion in mice. Diabetologia . doi: 10.1007/s00125-019-4916-z. ​
Moss, J., Magenheim, J., Neiman, D., Zemmour, H., Loyfer, N., Korach, A., Samet, Y., Maoz, M., Druid, H., Arner, P., Fu, K.Y., Kiss, E., Spalding, K.L., Landesberg, G., Zick, A., Grinshpun, A., Shapiro, A.M.J., Grompe, M., Wittenberg, A.D., Glaser, B., Shemer, R., Kaplan, T. and Dor, Y. (2018) Comprehensive human cell-type methylation atlas reveals origins of circulating cell-free DNA in health and disease. Nat Comm 9(1):448142.​​​​
Sakikubo, M., Furuyama, K., Horiguchi, M., Hosokawa, S., Aoyama, Y., Tsuboi, K., Goto, T., Hirata, K., Masui, T., Dor, Y. and Fujiyama, T. (2018). Ptf1a inactivation in adult pancreatic acinar cells causes apoptosis through activation of the endoplasmic reticulum stress pathway. Sci Rep, 8(1) 15812.
Dor, Y. and Cedar, H. (2018). Principles of DNA methylation and their implications for biology and medicine. Lancet pii: S0140-6736 (18) 31268-6.​​​​
Lehmann-Werman, R., Magenheim, J., Moss, J., Neiman, D., Abraham, O., Piyanzin, S., Zemmour, H., Fox, I., Dor, T., Grompe, M., Landesberg, G., Loza, B.L., Shaked, A., Olthoff, K., Glaser, B., Shemer, R. and Dor, Y. (2018). Monitoring liver damage using hepatocyte-specific methylation markers in cell-free circulating DNA. JCI Insight 3(12)​​​​​
Anzi, S., Stolovich-Rain, M., Klochendler, A., Fridlich, O., Helman, A., Paz-Sonnenfeld, A., Avni-Magen, N., Kaufman, E., Ginzberg, M.B., Snider, D., Ray, S., Brecht, M., Holmes, M.M., Meir, K., Avivi, A., Shams, I., Berkowitz, A., Shapiro, A.M.J, Glaser, B., Ben-Sasson, S., Kafri, R. and Dor, Y. (2018). Postnatal exocrine pancreas growth by cellular hypertrophy correlates with a shorter lifespan in mammals. Dev Cell, 45(6), pp.726-737.​​​​​
Zemmour, H., Planer, D., Magenheim, J., Moss, J., Neiman, D., Gilon, D., Korach, A., Glaser, B., Shemer, R., Landesberg, G. and Dor, Y. (2018). Non-invasive detection of human cardiomyocyte death using methylation patterns of circulating DNA. Nat Commun, 9(1), p.1443.​​​​
Gala-Lopez, B.L., Neiman, D., Kin, T., O’Gorman, D., Pepper, A.R., Malcolm, A.J., Pianzin, S., Senior, P.A., Campbell, P., Glaser, B., Dor, Y., and Shapiro, A.M.J. (2018). Beta Cell Death by Cell-Free DNA and Outcome after Clinical Islet Transplantation. Transplantation 102(6):978-985.​​​​
Neiman, D., Moss, J., Hecht, M., Magenheim, J., Piyanzin, S., Shapiro, A.J., De Koning, E.J., Razin, A., Cedar, H., Shemer, R. and Dor, Y. (2017). Islet cells share promoter hypomethylation independently of expression, but exhibit cell-type–specific methylation in enhancers. PNAS 114(51), 13525-13530.​​​​
Jäkel, C., Bergmann, F., Toth, R., Assenov, Y., van der Duin, D., Strobel, O., Hank, T., Klöppel, G., Dorrell, C., Grompe, M., Moss, J., Dor, Y., Schirmacher, P., Plass, C., Popanda, O. and Schmezer, P. (2017). Genome-wide genetic and epigenetic analyses of pancreatic acinar cell carcinomas reveal aberrations in genome stability. Nat Commun, 8(1), p.1323.​
Avrahami, D., Wang, Y. J., Klochendler, A., Dor, Y., Glaser, B., and Kaestner, K. H. (2017). Cells are not uniform after all—Novel insights into molecular heterogeneity of insulin secreting cells. Diabetes, Obesity and Metabolism, 19(S1), 147-152.
Avrahami, D., Klochendler, A., Dor, Y. and Glaser, B. (2017) Beta cell heterogeneity: an evolving concept. Diabetologia 60(8):1363-1369
Swisa, A., Glaser, B., and Dor, Y. (2017). Metabolic Stress and Compromised Identity of Pancreatic Beta Cells. Front Genet, 8,21.
Brereton, M.F., Rohm, M., Shimomura, K., Holland, C., Tornovsky-Babeay, S., Dadon, D., Iberl, M., Chibalina, M.V., Lee, S., Glaser, B., Dor, Y., Rorsman, P., Clark, A., and Ashcroft, F.M. (2016). Hyperglycaemia induces metabolic dysfunction and glycogen accumulation in pancreatic -cells. Nat Commun, 7, 13496.
Karin, O., Swisa, A., Glaser, B., Dor, Y., and Alon, U. (2016). Dynamical compensation in physiological circuits. Mol Syst Biol, 12(11), 886.
Dahan, T., Ziv, O., Horwitz, E., Zemmour, H., Lavi, J., Swisa, A., Leibowitz, G., Ashcroft F.M., Veld P.I., Glaser, B. and Dor, Y. (2016) Pancreatic Beta Cells Express the Fetal Islet Hormone Gastrin in Rodent and Human Diabetes. Diabetes, 66(2):426-436​.
Malakar, P., Chartarifsky, L., Hija, A., Leibowitz, G., Glaser, B., Dor, Y. and Karni R. (2016) Insulin receptor alternative splicing is regulated by insulin signaling and modulates beta cell survival. Sci Rep, 6:31222. doi: 10.1038/srep31222.
Lehmann-Werman, R., Neiman, D., Zemmour, H., Moss, J., Magenheim, J., Vaknin-Dembinsky, A., Rubertsson, S., Nellgrd, B., Blennow, K., Zetterberg, H., Spalding, K., Haller, M.J., Wasserfall, C.H., Schatz, D.A., Greenbaum, C.J., Dorrell, C., Grompe, M., Zick, A., Hubert, A., Maoz, M., Fendrich, V., Bartsch, D.K., Golan, T., Ben Sasson, S.A., Zamir, G., Razin, A., Cedar, H., Shapiro, A.M., Glaser, B., Shemer, R. and Dor, Y. (2016) Identification of tissue-specific cell death using methylation patterns of circulating DNA. Proc Natl Acad Sci U S A 113(13):E1826-34.
Klochendler, A., Caspi, I., Corem, N., Moran, M., Friedlich, O., Elgavish, S., Nevo, Y., Helman, A., Glaser, B., Eden, A., Itzkovitz, S. and Dor, Y. (2016). The genetic program of pancreatic beta-cell replication in vivo. Diabetes 65(7):2081-93.
Helman, A., Klochendler, A., Azazmeh, N., Gabai, Y., Horwitz, E., Anzi, S., Swisa, A., Condiotti, R., Granit, R.Z., Nevo, Y., Fixler, Y., Shreibman, D., Zamir, A., Tornovsky-Babeay, S., Dai, C., Glaser, B., Powers, A.C., Shapiro, A.M., Magnuson, M.A., Dor, Y. and Ben-Porath, I. (2016). p16-induced senescence of pancreatic beta cells enhances insulin secretion. Nat Med 22(4):412-20.
Wittenberg, A.D., Azar, S., Klochendler, A., Stolovich-Rain, M., Avraham, S., Birnbaum, L., Binder Gallimidi, A., Katz, M., Dor, Y. and Meyuhas, O. (2016). Phosphorylated Ribosomal Protein S6 Is Required for Akt-Driven Hyperplasia and Malignant Transformation, but Not for Hypertrophy, Aneuploidy and Hyperfunction of Pancreatic beta-Cells. PLoS One 11, e0149995.
Swisa, A., Granot, Z., Tamarina, N., Sayers, S., Bardeesy, N., Philipson, L., Hodson, D.J., Wikstrom, J.D., Rutter, G.A., Leibowitz, G., Glaser, B. and Dor, Y. (2015). Loss of Liver Kinase B1 (LKB1) in Beta Cells Enhances Glucose-stimulated Insulin Secretion Despite Profound Mitochondrial Defects. J Biol Chem 290, 20934-20946.
Stolovich-Rain, M., Enk, J., Vikesa, J., Nielsen, F.C., Saada, A., Glaser, B. and Dor, Y. (2015). Weaning triggers a maturation step of pancreatic beta cells. Dev Cell 32, 535-545.
Tornovsky-Babeay, S., Dadon, D., Ziv, O., Tzipilevich, E., Kadosh, T., Schyr-Ben Haroush, R., Hija, A., Stolovich-Rain, M., Furth-Lavi, J., Granot, Z., Porat, S., Philipson, L.H., Herold, K.C., Bhatti, T.R., Stanley, C., Ashcroft, F.M., In't Veld, P., Saada, A., Magnuson, M.A., Glaser, B. and Dor, Y. (2014). Type 2 diabetes and congenital hyperinsulinism cause DNA double-strand breaks and p53 activity in beta cells. Cell Metab 19, 109-121.
Baeyens, L., Lemper, M., Leuckx, G., De Groef, S., Bonfanti, P., Stange, G., Shemer, R., Nord, C., Scheel, D.W., Pan, F.C., Ahlgren, U., Gu, G., Stoffers, D.A., Dor, Y., Ferrer, J., Gradwohl, G., Wright, C.V., Van de Casteele, M., German, M.S., Bouwens, L. and Heimberg, H. (2014). Transient cytokine treatment induces acinar cell reprogramming and regenerates functional beta cell mass in diabetic mice. Nat Biotechnol 32, 76-83.
Hija, A., Salpeter, S., Klochendler, A., Grimsby, J., Brandeis, M., Glaser, B. and Dor, Y. (2014). G0-G1 transition and the restriction point in pancreatic beta-cells in vivo. Diabetes 63, 578-584.
Suissa, Y., Magenheim, J., Stolovich-Rain, M., Hija, A., Collombat, P., Mansouri, A., Sussel, L., Sosa-Pineda, B., McCracken, K., Wells, J.M., Heller, R.S., Dor, Y. and Glaser, B. (2013). Gastrin: a distinct fate of neurogenin3 positive progenitor cells in the embryonic pancreas. PLoS One 8, e70397.
Ziv, O., Glaser, B. and Dor, Y. (2013). The plastic pancreas. Dev Cell 26, 3-7.
Salpeter, S.J., Khalaileh, A., Weinberg-Corem, N., Ziv, O., Glaser, B. and Dor, Y. (2013). Systemic regulation of the age-related decline of pancreatic beta-cell replication. Diabetes 62, 2843-2848.
Dor, Y. and Glaser, B. (2013). beta-cell dedifferentiation and type 2 diabetes. N Engl J Med 368, 572-573.
Khalaileh, A., Dreazen, A., Khatib, A., Apel, R., Swisa, A., Kidess-Bassir, N., Maitra, A., Meyuhas, O., Dor, Y. and Zamir, G. (2013). Phosphorylation of ribosomal protein S6 attenuates DNA damage and tumor suppression during development of pancreatic cancer. Cancer Res 73, 1811-1820.
Boj, S.F., van Es, J.H., Huch, M., Li, V.S., Jose, A., Hatzis, P., Mokry, M., Haegebarth, A., van den Born, M., Chambon, P., Voshol, P., Dor, Y., Cuppen, E., Fillat, C. and Clevers, H. (2012). Diabetes risk gene and Wnt effector Tcf7l2/TCF4 controls hepatic response to perinatal and adult metabolic demand. Cell 151, 1595-1607.
Klochendler, A., Weinberg-Corem, N., Moran, M., Swisa, A., Pochet, N., Savova, V., Vikesa, J., Van de Peer, Y., Brandeis, M., Regev, A., Nielsen, F.C., Dor, Y. and Eden, A. (2012). A transgenic mouse marking live replicating cells reveals in vivo transcriptional program of proliferation. Dev Cell 23, 681-690.
Cleaver, O. and Dor, Y. (2012). Vascular instruction of pancreas development. Development 139, 2833-2843.
Stolovich-Rain, M., Hija, A., Grimsby, J., Glaser, B. and Dor, Y. (2012). Pancreatic beta cells in very old mice retain capacity for compensatory proliferation. J Biol Chem 287, 27407-27414.
Magenheim, J., Ilovich, O., Lazarus, A., Klochendler, A., Ziv, O., Werman, R., Hija, A., Cleaver, O., Mishani, E., Keshet, E. and Dor, Y. (2011). Blood vessels restrain pancreas branching, differentiation and growth. Development 138, 4743-4752.
Magenheim, J., Klein, A.M., Stanger, B.Z., Ashery-Padan, R., Sosa-Pineda, B., Gu, G. and Dor, Y. (2011). Ngn3(+) endocrine progenitor cells control the fate and morphogenesis of pancreatic ductal epithelium. Dev Biol 359, 26-36.
Salpeter, S.J., Klochendler, A., Weinberg-Corem, N., Porat, S., Granot, Z., Shapiro, A.M., Magnuson, M.A., Eden, A., Grimsby, J., Glaser, B. and Dor, Y. (2011). Glucose regulates cyclin D2 expression in quiescent and replicating pancreatic beta-cells through glycolysis and calcium channels. Endocrinology 152, 2589-2598.
Porat, S., Weinberg-Corem, N., Tornovsky-Babaey, S., Schyr-Ben-Haroush, R., Hija, A., Stolovich-Rain, M., Dadon, D., Granot, Z., Ben-Hur, V., White, P., Girard, C.A., Karni, R., Kaestner, K.H., Ashcroft, F.M., Magnuson, M.A., Saada, A., Grimsby, J., Glaser, B. and Dor, Y. (2011). Control of pancreatic beta cell regeneration by glucose metabolism. Cell Metab 13, 440-449.
Melkman-Zehavi, T., Oren, R., Kredo-Russo, S., Shapira, T., Mandelbaum, A.D., Rivkin, N., Nir, T., Lennox, K.A., Behlke, M.A., Dor, Y. and Hornstein, E. (2011). miRNAs control insulin content in pancreatic beta-cells via downregulation of transcriptional repressors. EMBO J 30, 835-845.
Sand, F.W., Hornblad, A., Johansson, J.K., Loren, C., Edsbagge, J., Stahlberg, A., Magenheim, J., Ilovich, O., Mishani, E., Dor, Y., Ahlgren, U. and Semb, H. (2011). Growth-limiting role of endothelial cells in endoderm development. Dev Biol 352, 267-277.
Salpeter, S.J., Klein, A.M., Huangfu, D., Grimsby, J. and Dor, Y. (2010). Glucose and aging control the quiescence period that follows pancreatic beta cell replication. Development 137, 3205-3213.
Gur, C., Porgador, A., Elboim, M., Gazit, R., Mizrahi, S., Stern-Ginossar, N., Achdout, H., Ghadially, H., Dor, Y., Nir, T., Doviner, V., Hershkovitz, O., Mendelson, M., Naparstek, Y. and Mandelboim, O. (2010). The activating receptor NKp46 is essential for the development of type 1 diabetes. Nat Immunol 11, 121-128.
Granot, Z., Swisa, A., Magenheim, J., Stolovich-Rain, M., Fujimoto, W., Manduchi, E., Miki, T., Lennerz, J.K., Stoeckert, C.J., Jr., Meyuhas, O., Seino, S., Permutt, M.A., Piwnica-Worms, H., Bardeesy, N. and Dor, Y. (2009). LKB1 regulates pancreatic beta cell size, polarity, and function. Cell Metab 10, 296-308.
Nir, T., Melton, D.A. and Dor, Y. (2007). Recovery from diabetes in mice by beta cell regeneration. J Clin Invest 117, 2553-2561.
Weinberg, N., Ouziel-Yahalom, L., Knoller, S., Efrat, S. and Dor, Y. (2007). Lineage tracing evidence for in vitro dedifferentiation but rare proliferation of mouse pancreatic beta-cells. Diabetes 56, 1299-1304.
Murtaugh, L.C., Law, A.C., Dor, Y. and Melton, D.A. (2005). Beta-catenin is essential for pancreatic acinar but not islet development. Development 132, 4663-4674.
Stanger, B.Z., Stiles, B., Lauwers, G.Y., Bardeesy, N., Mendoza, M., Wang, Y., Greenwood, A., Cheng, K.H., McLaughlin, M., Brown, D., Depinho, R.A., Wu, H., Melton, D.A. and Dor, Y. (2005). Pten constrains centroacinar cell expansion and malignant transformation in the pancreas. Cancer Cell 8, 185-195.
Stanger BZ, Stiles B, Lauwers GY, Bardeesy N, Mendoza M, Wang Y, Greenwood A, McLaughlin M, Brown D, DePinho RA, Wu H, Melton DA, Dor Y (2005). Pten constrains centroacinar cell expansion and malignant transformation in the pancreas. Cancer Cell 8(3):185-95.
Dor, Y, Brown J, Martinez O, Melton D (2004). Adult pancreatic beta cells are formed by self-duplication rather than stem cell differentiation. Nature 429:41-46.
Dor, Y, Djonov V, Abramovitch R, Itin A, Fishman GI, Carmeliet P, Goelman G, Keshet E (2002). Conditional switching of VEGF provides new insights into adult neovascularization and pro-angiogenic therapy. EMBO J 21:1939-47.
Dor, Y, Camenisch T, Itin A, Fishman G, McDonald J, Carmeliet P, Keshet E (2001). A novel role for VEGF in endocardial cushion formation and its potential contribution to heart septation defects. Development 128:1531-1538.
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