Beta cell. Langerhans islet

Islet Facility

The human pancreas biobank at IDM comprises a unique collection of pancreatic adipose tissue specimens from metabolically profiled living donors, both non-diabetic and with type 2 diabetes. Utilizing this valuable resource, we characterize the functional properties of pancreatic adipocytes, and investigate how pancreatic adipocytes influence beta cell function, particularly insulin secretion.

To explore the crosstalk between pancreatic islets and adipocytes, we developed an innovative in vitro model of human primary pancreatic adipose organoids that retain donor-specific metabolic traits. In collaboration with the University Hospital Tübingen’s Department of Surgery, we are expanding the biobank to include matched subcutaneous and visceral fat samples from the same donors, enabling controlled intra-individual comparisons.

Leveraging our “fatty pancreas-on-a-chip” platform, we aim to uncover cellular and molecular pathways through which adipocytes from distinct fat depots affect beta cell physiology and identify key mediators driving these inter-tissue interactions.

Our overarching goal is to elucidate fat depot-specific mechanisms that impact islet function and drive diabetes pathogenesis, ultimately informing new therapeutic strategies for diabetes prevention and treatment.

The human pancreas biobank at IDM comprises a unique collection of pancreatic adipose tissue specimens from metabolically profiled living donors, both non-diabetic and with type 2 diabetes. Utilizing this valuable resource, we characterize the functional properties of pancreatic adipocytes, and investigate how pancreatic adipocytes influence beta cell function, particularly insulin secretion.

To explore the crosstalk between pancreatic islets and adipocytes, we developed an innovative in vitro model of human primary pancreatic adipose organoids that retain donor-specific metabolic traits. In collaboration with the University Hospital Tübingen’s Department of Surgery, we are expanding the biobank to include matched subcutaneous and visceral fat samples from the same donors, enabling controlled intra-individual comparisons.

Leveraging our “fatty pancreas-on-a-chip” platform, we aim to uncover cellular and molecular pathways through which adipocytes from distinct fat depots affect beta cell physiology and identify key mediators driving these inter-tissue interactions.

Our overarching goal is to elucidate fat depot-specific mechanisms that impact islet function and drive diabetes pathogenesis, ultimately informing new therapeutic strategies for diabetes prevention and treatment.

Our News

Scientists at Islet Facility

14.04.2024_Felicia Gerst
PD Dr. Felicia Gerst

Group Leader, Scientist

MedKlinik_Portrait_Estela_Lorza_Gil
Dr. Estela Lorza Gil

Group Leader, Scientist

View profile

Recent Publications

Nat. Med. 31, 3330-3340 (2025)

Sandforth, A. ; Arreola, E.V. ; Hanson, R.L. ; Wewer Albrechtsen, N.J. ; Holst, J.J. ; Ahrends, R. ; Coman, C. ; Gerst, F. ; Lorza-Gil, E. ; Cheng, Y. ; Sandforth, L. ; Katzenstein, S. ; Ganslmeier, M. ; Seissler, J. ; Hauner, H. ; Perakakis, N. ; Wagner, R. ; Machann, J. ; Schick, F. ; Peter, A. ; Lehmann, R. ; Weigert, C. ; Maurer, J. ; Preissl, H. ; Heni, M. ; Szendrödi, J. ; Kopf, S. ; Solimena, M. ; Schwarz, P. ; Blüher, M. ; Häring, H.-U. ; Hrabě de Angelis, M. ; Schürmann, A. ; Kabisch, S. ; Mai, K. ; Pfeiffer, A.F.H. ; Bornstein, S. ; Stumvoll, M. ; Roden, M. ; Stefan, N. ; Fritsche, A. ; Birkenfeld, A.L. ; Jumpertz von Schwartzenberg, R.

Prevention of type 2 diabetes through prediabetes remission without weight loss.
Mol. Metab. 91:102067 (2025)

Lorza-Gil, E. ; Strauss, O. ; Ziegler, E. ; Kansy, K. ; Katschke, M.-T.  ; Rahimi, G. ; Neuscheler, D. ; Sandforth, L. ; Sandforth, A. ; Sancar, G. ; Kaufmann, B. ; Hartmann, D. ; Singer, S.R. ; Mihaljevic, A.L. ; Jumpertz von Schwartzenberg, R. ; Sbierski-Kind, J. ; Müller, T.D. ; Birkenfeld, A.L. ; Gerst, F.

Incretin-responsive human pancreatic adipose tissue organoids: A functional model for fatty pancreas research.
Front. Endocrin. 15:1379994 (2024)

Lorza-Gil, E. ; Ekim Üstünel, B. ; Sancar, G.

Editorial: Organ crosstalk in the pathophysiology and treatment of type-2 diabetes.
Diabetologia 66, 1501-1515 (2023)

Lorza-Gil, E. ; Kaiser, G. ; Carlein, C. ; Hoffmann, M.D.A. ; König, G.M. ; Haug, S. ; Prates Roma, L. ; Rexen Ulven, E. ; Ulven, T. ; Kostenis, E. ; Birkenfeld, A.L. ; Häring, H.U. ; Ullrich, S. ; Gerst, F.

Glucose-stimulated insulin secretion depends on FFA1 and Gq in neonatal mouse islets.

Siegel-Axel, D. ; Barroso Oquendo, M. ; Gerst, F. ; Fend, F. ; Wagner, R. ; Heni, M. ; Königsrainer, A. ; Häring, H.-U. ; Fritsche, A. ; Schleicher, E. ; Birkenfeld, A.L. ; Stefan, N.

Extracellular matrix expression in human pancreatic fat cells of patients with normal glucose regulation, prediabetes and type 2 diabetes.
Sci. Rep. 12:15831 (2022)

Oquendo, M.B. ; Lorza-Gil, E. ; Juarez Lopez, D.A. ; Wagner, R. ; Birkenfeld, A.L. ; Ullrich, S. ; Gerst, F.

Effects of adrenergic-stimulated lipolysis and cytokine production on in vitro mouse adipose tissue-islet interactions.
Nat. Rev. Endocrinol. 18, 43–54 (2022)

Wagner, R. ; Eckstein, S.S. ; Yamazaki, H. ; Gerst, F. ; Machann, J. ; Jaghutriz, B.A. ; Schürmann, A. ; Solimena, M. ; Singer, S.R. ; Königsrainer, A. ; Birkenfeld, A.L. ; Häring, H.-U. ; Fritsche, A. ; Ullrich, S. ; Heni, M.

Metabolic implications of pancreatic fat accumulation.
Nat. Commun. 12:4796 (2021)

Volta, F. ; Scerbo, M.J. ; Seelig, A. ; Wagner, R. ; O'Brien, N. ; Gerst, F. ; Fritsche, A. ; Häring, H.-U. ; Zeigerer, A. ; Ullrich, S. ; Gerdes, J.M.

Author Correction: Glucose homeostasis is regulated by pancreatic β-cell cilia via endosomal EphA-processing.
Diabetologia 64, 1358–1374 (2021)

Gerst, F. ; Kemter, E. ; Lorza-Gil, E. ; Kaiser, G. ; Fritz, A.K. ; Nano, R. ; Piemonti, L. ; Gauder, M. ; Dahl, A. ; Nadalin, S. ; Königsrainer, A. ; Fend, F. ; Birkenfeld, A.L. ; Wagner, R. ; Heni, M. ; Stefan, N. ; Wolf, E. ; Häring, H.-U. ; Ullrich, S.

The hepatokine fetuin-A disrupts functional maturation of pancreatic beta cells.
Am. J. Physiol.-Cell Physiol. 320, C1000-C1012 (2021)

Barroso Oquendo, M. ; Siegel-Axel, D.I. ; Gerst, F. ; Lorza-Gil, E. ; Moller, A. ; Wagner, R. ; Machann, J. ; Fend, F. ; Königsrainer, A. ; Heni, M. ; Häring, H.-U. ; Ullrich, S. ; Birkenfeld, A.L.

Pancreatic fat cells of humans with type 2 diabetes display reduced adipogenic and lipolytic activity.

Primary Investigators

14.04.2024_Felicia Gerst
PD Dr. Felicia Gerst

Group Leader, Scientist

MedKlinik_Portrait_Estela_Lorza_Gil
Dr. Estela Lorza Gil

Group Leader, Scientist

View profile