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High resistance to oxidative stress is a common feature of mesenchymal stem/stromal cells (MSC) and is associated with higher cell survival and ability to respond to oxidative damage. Aldehyde dehydrogenase (ALDH) activity is a candidate "universal" marker for stem cells. ALDH expression was significantly lower in decidual MSC (DMSC) isolated from preeclamptic (PE) patients. ALDH gene knockdown by siRNA transfection was performed to create a cell culture model of the reduced ALDH expression detected in PE-DMSC. We showed that ALDH activity in DMSC is associated with resistance to hydrogen peroxide (HO)-induced toxicity. Our data provide evidence that ALDH expression in DMSC is required for cellular resistance to oxidative stress. Furthermore, candidate ALDH activators were screened and two of the compounds were effective in upregulating ALDH expression. This study provides a proof-of-principle that the restoration of ALDH activity in diseased MSC is a rational basis for a therapeutic strategy to improve MSC resistance to cytotoxic damage.
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http://dx.doi.org/10.1038/srep42397 | DOI Listing |
Cancer Res
September 2025
University of Iowa, iowa city, United States.
Obesity is strongly associated with triple-negative breast cancer (TNBC). A better understanding of the molecular mechanisms driving obesity-induced TNBC progression could facilitate development of precision dietary intervention strategies. Here, we used murine models of obesity induced by different high-fat diets (HFDs) to examine their impact on TNBC progression.
View Article and Find Full Text PDFNat Commun
September 2025
Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.
Ferroptosis, an iron-dependent form of cell death, holds promise for cancer therapy. However, the intricate link between ferroptosis and oncogenic mutations remains unclear. Here we show that SMARCA4, a well-established tumour suppressor whose deficiency is associated with poor prognosis and resistance to treatments, sensitizes non-small cell lung cancer (NSCLC) cells to ferroptosis.
View Article and Find Full Text PDFJ Comput Aided Mol Des
August 2025
Institute of Cancer Therapeutics, School of Pharmacy and Medical Sciences, Faculty of Life Sciences, University of Bradford, Bradford, BD71DP, UK.
Aldehyde dehydrogenases (ALDHs) belong to a group of enzymes that play a vital role in various biological processes and cellular defence against aldehyde toxicity. The ALDH1A subfamily has largely been associated with elevated expression in cancer tissues, and in particular in cancer stem-like cells ALDH1A1 is a frequently expressed enzyme in stem cells and target for therapeutic intervention, however, other isoforms such as 1A2, 1A3, 2, 3A1 and 7A1 have drawn significant attention in the recent years due to their involvement in various pathophysiological conditions. The current study is aimed at therapeutic intervention of ALDH1A3 by developing new inhibitors with the aid of computer-assisted drug design approach.
View Article and Find Full Text PDFBiomedicines
August 2025
Department of Visceral, Vascular and Endocrine Surgery, Martin-Luther-University Halle-Wittenberg, University Medical Center Halle, 06120 Halle (Saale), Germany.
: Pancreatic cancer ranks as the fourth leading cause of cancer-related deaths in the USA. The human aldehyde dehydrogenase (ALDH) family comprises 19 functional members and has been implicated in prognosis and therapy resistance. However, it remains unclear which specific ALDHs are associated with adverse prognoses in pancreatic cancer.
View Article and Find Full Text PDFToxics
July 2025
The Karst Environmental Geological Hazard Prevention of Key Laboratory of State Ethnic Affairs Commission, College of Eco-Environment Engineering, Guizhou Minzu University, Guiyang 550025, China.
Cadmium (Cd) toxicity destroys plant cells and affects plant growth and development. Due to its unique metallic properties, selenium (Se) has been shown to be effective in antioxidants, cellular immunity, and heavy metal detoxification. When Se and Cd are present together in plants, they antagonize.
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