Dev Biol
School of Medicine, Tsinghua University, Beijing 100084, China. Electronic address:
Published: August 2017
Efficient clearance of apoptotic cells is essential for tissue homeostasis in metazoans. Genetic studies in Caenorhabditis elegans have identified signaling cascades that activate CED-10/Rac1 GTPase and promote actin cytoskeletal rearrangement during apoptotic cell engulfment. However, the molecular connection between CED-10 activation and actin reorganization remains elusive. Here, we provide evidence that CED-10 binds to the Arp2/3 nucleation promoting factor WASP; CED-10 recruits WASP and Arp2/3 to apoptotic cell corpses in the phagocytes. The loss of WASP and Arp2/3 impaired cell corpse engulfment. Furthermore, we uncover that a WASP-activating factor SEM-5/GRB2 functions in the phagocytes to promote cell corpse clearance. Together, our results suggest CED-10 reorganizes the actin cytoskeleton by recruiting the WASP-Arp2/3 actin nucleation factors during apoptotic cell engulfment.
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http://dx.doi.org/10.1016/j.ydbio.2017.06.005 | DOI Listing |
Food Sci Nutr
January 2025
Agricultural Extension Directorate, MAAR Damascus Syria.
Coumarins, a group of naturally occurring compounds, have been reported to demonstrate anticancer potential. These substances, distinguished by their combined benzene and α-pyrone rings, have been demonstrated to impact multiple cellular mechanisms essential for the initiation and advancement of cancer. These agents work in different ways that prevent different tumor cells from growing, spreading, and increasing.
View Article and Find Full Text PDFResults Chem
December 2024
Department of Chemistry and Biochemistry, Old Dominion University 4501 Elkhorn Avenue, Norfolk, VA 23529, USA.
In this study, the copper(II) complex [Cu(chromoneTSC)Cl]•0.5HO•0.0625CHOH (where chromoneTSC = -Ethyl-2-((4-oxo-4H-chromen-3-yl)methylene)-hydrazinecarbothioamide) was synthesized and characterized; then used to carry out studies in combination with berberine chloride (BBC).
View Article and Find Full Text PDFRegen Ther
March 2025
Research Center for Integrated Traditional Chinese and Western Medicine, The Affiliated Traditional Chinese Medicine Hospital, Southwest Medical University, Luzhou, 646000, China.
Background: Acute kidney injury (AKI) is a life-threatening clinical syndrome with no effective treatment currently available. This study aims to investigate whether Iron-Quercetin complex (IronQ) pretreatment can enhance the therapeutic efficacy of Mesenchymal stem cells (MSCs) in AKI and explore the underlying mechanisms.
Methods: A cisplatin-induced AKI model was established in male C57BL/6 mice, followed by the intravenous administration of 1x10ˆ6 MSCs or IronQ-pretreated MSCs (MSC).
Toxicol Res (Camb)
January 2025
Yunnan Provincial Key Laboratory of Public Health and Biosafety and School of Public Health, Kunming Medical University, No. 1168 Chunrongxi Road, Chenggong, Kunming, Yunnan 650500, China.
This study explores the role of Argonaute 2 (AGO2) in the induction of apoptosis by arsenic in 16HBE cells and investigates the association between AGO2 expression and arsenic exposure in a human population. By silencing AGO2 with siRNA, we examined its impact on cell viability and apoptosis using CCK-8, HO-PI, and JC-1 assays, complemented by qRT-PCR and Western blot analyses for gene and protein expressions. Our findings revealed a significant correlation between AGO2 expression and levels of exposure to inorganic arsenic (iAs), which was more pronounced than with other arsenic forms such as monomethylarsonic (MMA) and dimethylarsinic acids (DMA).
View Article and Find Full Text PDFToxicol Rep
June 2025
Department of Pharmacology, Theodor Bilharz Research Institute, Warrak El-Hadar, Imbaba, Giza 12411, Egypt.
Despite significant breakthroughs in frontline cancer research and chemotherapy for hepatocellular carcinoma (HCC), many of the suggested drugs have high toxic side effects and resistance, limiting their clinical utility. Exploring potential therapeutic targets or novel combinations with fewer side effects is therefore crucial in combating this dreadful disease. The current study aims to use a novel combination of ponatinib and gossypol against the HepG2 cell line.
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