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Introduction: Abnormal extravillous trophoblast (EVT) function is closely related to preeclampsia (PE) and may be caused by inadequate autophagy, apoptosis, and senescence. Cyclosporin A (CsA) is an effective immunosuppressant that has been reported to stimulate autophagy and exert benign biological effects on EVTs. Therefore, we hypothesized that CsA may display therapeutic efficacy against PE by activating autophagy.
Methods: We established the nitro-l-arginine methyl ester (l-NAME)-induced preeclamptic mice model and a hypoxia-reoxygenation (H/R) model in vitro. The effects of CsA on autophagy were evaluated by western blotting (WB). The effects of CsA on apoptosis were analyzed by Hematoxylin-eosin (H&E) staining, cell apoptosis assay and WB. Senescence-associated β-galactosidase (SA-β-gal) staining, RT-qPCR and WB were used to examine the senescence level. RT-qPCR were used to detect the senescence-associated secretory phenotype (SASP) level. DCFH-DA fluorescent probe, dihydroethidium (DHE) staining and mitochondrial membrane potential (ΔΨm) were used to detect senescence-associated mitochondrial dysfunction (SAMD).
Results: CsA alleviated PE-like symptoms and reduced placental necrosis and senescence in mice injected with l-NAME. CsA ameliorated placental SASP and SAMD level induced by l-NAME. CsA also upregulated the expression of autophagic proteins in mouse placentas disrupted using l-NAME. In vitro, we found that CsA reversed H/R-induced apoptosis and senescence, as well as decreasing SASP and SAMD levels and upregulating autophagic proteins levels. Notably, 3-methyladenine (3-MA), an early phase inhibitor of autophagosome formation, abolished the protective effects of CsA against H/R.
Discussion: CsA may display some therapeutic effects against PE by activating autophagy in vivo and in vitro.
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http://dx.doi.org/10.1016/j.placenta.2021.11.003 | DOI Listing |
Biochim Biophys Acta Mol Cell Biol Lipids
December 2024
Human Aging Research Institute (HARI) and School of Life Science, Nanchang University, and Jiangxi Key Laboratory of Aging and Disease, Nanchang, Jiangxi, China. Electronic address:
Sphingolipids are crucial components of cell membranes and serve as important signaling molecules. Ceramide, as the central hub of sphingolipid metabolism, plays a significant role in various biological processes, including the cell cycle, apoptosis, and cellular aging. Alterations in sphingolipid metabolism are implicated in cellular aging, however, the specific sphingolipid components and intrinsic mechanisms that mediate this process remain largely uncharacterized.
View Article and Find Full Text PDFToxicol In Vitro
December 2024
Department of Biochemistry, College of Medicine, Jeju Research Center for Natural Medicine, Jeju National University, Jeju 63243, Republic of Korea. Electronic address:
Particulate matter 2.5 (PM) exposure is responsible for skin inflammation, aging, and disruption of skin homeostasis. The objective of this investigation was to assess the potential of myricetin in protecting against skin damage caused by PM.
View Article and Find Full Text PDFJCI Insight
December 2024
Institute of Musculoskeletal Medicine, University Hospital Münster, Münster, Germany.
Transient receptor potential channel 1 (TRPC1) is a widely expressed mechanosensitive ion channel located within the endoplasmic reticulum membrane, crucial for refilling depleted internal calcium stores during activation of calcium-dependent signaling pathways. Here, we demonstrate that TRPC1 activity is protective within cartilage homeostasis in the prevention of cellular senescence associated cartilage breakdown during mechanical and inflammatory challenge. We reveal that TRPC1 loss is associated with early stages of osteoarthritis (OA) and plays a non-redundant role in calcium signaling in chondrocytes.
View Article and Find Full Text PDFProstate
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Department of Biological Sciences, Institute of Biosciences, Humanities and Exact Sciences, São Paulo State University (UNESP), São José do Rio Preto, São Paulo, Brazil.
Background: Benign prostatic hyperplasia (BPH) is a disease linked to the hormonal imbalance that occurs during aging and over the last decades, complementary and alternative medicines have come on the scene as a treatment option for BPH, such as herbal medicines. Coconut oil has been shown to be capable of interfering in testosterone-induced BPH. However, until now there is no study of the effect of coconut oil during aging.
View Article and Find Full Text PDFAdv Sci (Weinh)
December 2024
Department of Head and Neck Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, P. R. China.
Anaplastic thyroid cancer (ATC) is the most lethal tumor arising from thyroid follicular epithelium. Lenvatinib is an off-label use option for ATC patients in many countries but an approved prescription in Japan. However, lenvatinib resistance is a substantial clinical challenge.
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