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Characterization of Leptin Receptor+ Stromal Cells in Lymph Node.
Jiang, Liwei; Yilmaz, Mine; Uehara, Mayuko; Cavazzoni, Cecilia B; Kasinath, Vivek; Zhao, Jing; Naini, Said Movahedi; Li, Xiaofei; Banouni, Naima; Fiorina, Paolo; Shin, Su Ryon; Tullius, Stefan G; Bromberg, Jonathan S; Sage, Peter T; Abdi, Reza.
Afiliación
  • Jiang L; Transplantation Research Center, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.
  • Yilmaz M; Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, China.
  • Uehara M; Transplantation Research Center, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.
  • Cavazzoni CB; Transplantation Research Center, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.
  • Kasinath V; Transplantation Research Center, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.
  • Zhao J; Transplantation Research Center, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.
  • Naini SM; Transplantation Research Center, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.
  • Li X; Transplantation Research Center, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.
  • Banouni N; Transplantation Research Center, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.
  • Fiorina P; Transplantation Research Center, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.
  • Shin SR; Division of Nephrology, Boston Children's Hospital, Harvard Medical School, Boston, MA, United States.
  • Tullius SG; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, United States.
  • Bromberg JS; Division of Transplant Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.
  • Sage PT; Departments of Surgery and Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, United States.
  • Abdi R; Transplantation Research Center, Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.
Front Immunol ; 12: 730438, 2021.
Article en En | MEDLINE | ID: mdl-35111151
Lymph node (LN)-resident stromal cells play an essential role in the proper functioning of LNs. The stromal compartment of the LN undergoes significant compensatory changes to produce a milieu amenable for regulation of the immune response. We have identified a distinct population of leptin receptor-expressing (LepR+) stromal cells, located in the vicinity of the high endothelial venules (HEVs) and lymphatics. These LepR+ stromal cells expressed markers for fibroblastic reticular cells (FRCs), but they lacked markers for follicular dendritic cells (FDCs) and marginal reticular cells (MRCs). Leptin signaling deficiency led to heightened inflammatory responses within the LNs of db/db mice, leakiness of HEVs, and lymphatic fragmentation. Leptin signaling through the JAK/STAT pathway supported LN stromal cell survival and promoted the anti-inflammatory properties of these cells. Conditional knockout of the LepR+ stromal cells in LNs resulted in HEV and extracellular matrix (ECM) abnormalities. Treatment of ob/ob mice with an agonist leptin fusion protein restored the microarchitecture of LNs, reduced intra-LN inflammatory responses, and corrected metabolic abnormalities. Future studies are needed to study the importance of LN stomal cell dysfunction to the pathogenesis of inflammatory responses in type 2 diabetes (T2D) in humans.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Células del Estroma / Receptores de Leptina / Ganglios Linfáticos Límite: Animals Idioma: En Revista: Front Immunol Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Suiza

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Células del Estroma / Receptores de Leptina / Ganglios Linfáticos Límite: Animals Idioma: En Revista: Front Immunol Año: 2021 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Suiza