SYDE1

Last update 08 May 2025

Basic Info

Synonyms

7h3, FLJ13511, Protein syd-1 homolog 1

+ [5]

Introduction

GTPase activator for the Rho-type GTPases. As a GCM1 downstream effector, it is involved in placental development and positively regulates trophoblast cells migration. It regulates cytoskeletal remodeling by controlling the activity of Rho GTPases including RHOA, CDC42 and RAC1 (PubMed:27917469).

100 Clinical Results associated with SYDE1

100 Translational Medicine associated with SYDE1

0 Patents (Medical) associated with SYDE1

Literatures (Medical) associated with SYDE1

01 May 2024·Journal of Investigative Dermatology

Epidermal Stem Cell Derived Exosomes Alleviate Excessive Autophagy Induced Endothelial Cell Apoptosis by Delivering miR200b-3p to Diabetic Wounds

Article

Author: Hu, Zhicheng ; Xu, Hailin ; Tang, Qizhi ; Yang, Hao ; Rong, Yanchao ; Zhu, Jiayuan ; Dong, Yunxian ; Chen, Miao ; Chen, Chufen ; Wang, Zhiyong ; Tang, Bing ; Xu, Zhongye ; Lv, Dongming ; Deng, Wuguo ; Cao, Xiaoling

The dysfunction of endothelial cells caused by hyperglycemia is observed as a decrease in neovascularization in diabetic wound healing. Studies have found that epidermal stem cells (EpiSCs) can promote the angiogenesis of full-thickness wounds. To further explain the therapeutic effect of EpiSCs, EpiSC-derived exosomes (EpiSC-EXOs) are considered the main substance contributing to stem cell effectivity. In our study, EpiSCs and EpiSC-EXOs were supplied to the dorsal wounds of db/db mice. Results showed that EpiSCs could colonize in the wound area and both EpiSCs and EpiSC-EXOs could accelerate diabetic wound healing by promoting angiogenesis. In vitro, persistent high glucose led to the malfunction and apoptosis of endothelial cells. The apoptosis induced by high glucose is due to excessive autophagy and was alleviated by EpiSC-EXOs. RNA sequencing of EpiSC-EXOs showed that miR200b-3p was enriched in EpiSC-EXOs and alleviated the apoptosis of endothelial cells. Synapse defective rho GTPase homolog 1 was identified the target of miR200b-3p and affected the phosphorylation of ERK to regulate intracellular autophagy and apoptosis. Furthermore, animal experiments validated the angiogenic effect of miR200b-3p. Collectively, our results verified the effect of EpiSC-EXOs on apoptosis caused by hyperglycemia in endothelial cells through the miR200b-3p/synapse defective rho GTPase homolog 1 /RAS/ERK/autophagy pathway, providing a theoretical basis for EpiSC in treating diabetic wounds.

15 May 2023·American Journal of Respiratory and Critical Care Medicine

The Genetic Landscape of Familial Pulmonary Fibrosis

Article

Author: Phillips, John A. ; Malabanan, M. Merced ; Douglas, Katrina ; Shyr, Yu ; Blue, Elizabeth E. ; Martinez-Barricarte, Ruben ; Sabusap, Carleen M. ; Zhou, Yuan ; Sheng, Quanhu ; Zhao, Shilin ; Markin, Cheryl R. ; Cogan, Joy D. ; Blackwell, Timothy S. ; Banovich, Nicholas E. ; Ciombor, Kristen K. ; Loyd, James E. ; Salisbury, Margaret L. ; Bamshad, Michael J. ; Mitchell, Daphne B. ; Schwartz, David A. ; Liu, Qi ; Ding, Guixiao ; Kropski, Jonathan A. ; Brown, Kevin K. ; Bai, Youhuang ; Nickerson, Deborah A.

Rationale and Objectives: Up to 20% of idiopathic interstitial lung disease is familial, referred to as familial pulmonary fibrosis (FPF). An integrated analysis of FPF genetic risk was performed by comprehensively evaluating for genetic rare variants (RVs) in a large cohort of FPF kindreds. Methods: Whole-exome sequencing and/or candidate gene sequencing from affected individuals in 569 FPF kindreds was performed, followed by cosegregation analysis in large kindreds, gene burden analysis, gene-based risk scoring, cell-type enrichment analysis, and coexpression network construction. Measurements and Main Results: It was found that 14.9-23.4% of genetic risk in kindreds could be explained by RVs in genes previously linked to FPF, predominantly telomere-related genes. New candidate genes were identified in a small number of families-including SYDE1, SERPINB8, GPR87, and NETO1-and tools were developed for evaluation and prioritization of RV-containing genes across kindreds. Several pathways were enriched for RV-containing genes in FPF, including focal adhesion and mitochondrial complex I assembly. By combining single-cell transcriptomics with prioritized candidate genes, expression of RV-containing genes was discovered to be enriched in smooth muscle cells, type II alveolar epithelial cells, and endothelial cells. Conclusions: In the most comprehensive FPF genetic study to date, the prevalence of RVs in known FPF-related genes was defined, and new candidate genes and pathways relevant to FPF were identified. However, new RV-containing genes shared across multiple kindreds were not identified, thereby suggesting that heterogeneous genetic variants involving a variety of genes and pathways mediate genetic risk in most FPF kindreds.

01 Apr 2022·Poultry ScienceQ2 · AGRICULTURAL & FORESTRY SCIENCE

Characterization and functional properties of a novel monoclonal antibody which identifies a B cell subpopulation in bursa of Fabricius

Q2 · AGRICULTURAL & FORESTRY SCIENCE

ArticleOA

Author: Härtle, Sonja ; Nagy, Nándor ; Roche, Dominik von La ; Soós, Ádám ; Halasy, Viktória ; Kocsis, Katalin ; Fejszák, Nóra ; Szőcs, Emőke

The bursa of Fabricius (BF) plays a central role in the development of B lymphocytes in birds. During embryonic development the BF primordium is colonized by myeloid and lymphoid prebursal stem cells to form the follicle buds, which ultimately develop into lymphoid follicles with a central medullary and an outer cortical region. Lympho-myeloid differentiation within the medulla is fundamental to normal B cell development. In contrast, the complexity of the cellular composition of the follicular cortex and its role in B cell differentiation has only recently begun to be studied. As an effort to characterize the different bursal cells we have produced a large panel of monoclonal antibodies (mAbs) by immunizing mice with a BF cell suspension of guinea fowl (Numida meleagris). One of these antibodies (clone: 7H3) was found to recognize a 80 kDa cell surface antigen expressed first in the yolk sac blood island of 2-day-old guinea fowl and chicken embryos, and later detected in the embryonic circulation and primary lymphoid organs. Double immunofluorescence revealed that chB6+ (Bu-1+) B cells of embryonic BF co-express the 7H3 antigen. 7H3 immunoreactivity of the bursal follicles gradually diminished after hatching and only a subpopulation of cortical B cells expressed the 7H3 antigen. In addition, in post-hatched birds 7H3 mAb recognizes all T lymphocytes of the thymus, peripheral lymphoid organs and blood. Embryonic BF injected with the 7H3 mAb showed a near complete block of lymphoid follicle formation In conclusion, 7H3 mAb labels a new differentiation antigen specific for avian hematopoietic cells, which migrate through the embryonic mesenchyme, colonize the developing BF lymphoid follicles, and differentiate into a subpopulation of cortical B cells. The staining pattern of the 7H3 mAb and the correlation of expression with cell migration suggest that the antigen will serve as valuable immunological marker for studying the ontogeny of avian B cells.

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SYDE1

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