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| http://dx.doi.org/10.1093/cvr/cvy270 | DOI Listing |
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Novel Role of Pin1-Cis P-Tau-ApoE Axis in the Pathogenesis of Preeclampsia and Its Connection with Dementia.
Biomedicines
December 2024
Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX 77555, USA.
Preeclampsia (preE) is a severe multisystem hypertensive syndrome of pregnancy associated with ischemia/hypoxia, angiogenic imbalance, apolipoprotein E (ApoE)-mediated dyslipidemia, placental insufficiency, and inflammation at the maternal-fetal interface. Our recent data further suggest that preE is associated with impaired autophagy, vascular dysfunction, and proteinopathy/tauopathy disorder, similar to neurodegenerative diseases such as Alzheimer's disease (AD), including the presence of the cis stereo-isoform of phosphorylated tau (cis P-tau), amyloid-β, and transthyretin in the placenta and circulation. This review provides an overview of the factors that may lead to the induction and accumulation of cis P-tau-like proteins by focusing on the inactivation of peptidyl-prolyl cis-trans isomerase (Pin1) that catalyzes the cis to trans isomerization of P-tau.
View Article and Find Full Text PDFNon-canonical Function of Prolyl Hydroxylase Domain 2 in Breast Cancer Cell Growth and Progression: Role of Peptidyl-prolyl Cis-trans Isomerase NIMA-interacting 1.
J Cancer Prev
December 2024
Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, Korea.
Prolyl hydroxylase domain 2 (PHD2) is the primary oxygen sensing enzyme involved in hydroxylation of hypoxia-inducible factor (HIF). Under normoxic conditions, PHD2 hydroxylates specific proline residues in HIF-1α and HIF-2α, promoting their ubiquitination and subsequent proteasomal degradation. Although PHD2 activity decreases in hypoxia, notable residual activity persists, but its function in these conditions remains unclear Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1 (Pin1) targets proteins with phosphorylated serine/threonine-proline (pSer/Thr-Pro) motifs.
View Article and Find Full Text PDFSex and Age Differences in Glucocorticoid Signaling After an Aversive Experience in Mice.
Cells
December 2024
Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision, and Brain Health), Institute of Mental Health and Drug Discovery, School of Mental Health, Wenzhou Medical University, Ouhai District, Wenzhou 325000, China.
Background: glucocorticoids may play an important role in the formation of fear memory, which is relevant to the neurobiology of post-traumatic stress disorder (PTSD). In our previous study, we showed the glucocorticoid receptor (GR) forms a protein complex with FKBP51, which prevents translocation of GR into the nucleus to affect gene expression; this complex is elevated in PTSD patients and by fear-conditioned learning in mice, and disrupting this complex blocks the storage and retrieval of fear-conditioned memories. The timing of release of glucocorticoid relative to the formation of a traumatic memory could be important in this process, and remains poorly understood.
View Article and Find Full Text PDFTau phosphorylation suppresses oxidative stress-induced mitophagy via FKBP8 receptor modulation.
PLoS One
January 2025
Department of Anesthesiology & Perioperative Medicine, University of Rochester, Rochester, New York, United States of America.
Article Synopsis
- Neurodegenerative diseases like Alzheimer's are linked to problems with mitochondria, specifically mitophagy, which is the process of removing damaged mitochondria.
- Research indicates that mutated tau proteins can inhibit this process, affecting cell health during oxidative stress.
- In this study, it was found that certain tau mutations reduce levels of a key mitophagy receptor, FKBP8, which could help explain tau's role in mitochondrial dysfunction related to Alzheimer's and suggest FKBP8 as a target for future treatments.
The mechanisms of Pin1 as targets for cancer therapy.
Front Immunol
December 2024
Department of Gastroenterology, Heilongjiang Academy of Traditional Chinese Medicine, Harbin, China.
Targeted therapy has considerable promise for the effective eradication of cancer at the primary tumor site prior to subsequent metastasis. Using this therapeutic approach, gaining an understanding of mechanistic cancer models is essential for facilitating the inhibition or suppression of tumor growth. Among different oncogenes and proteins, the protein interacting with never-in-mitosis kinase-1 (Pin1) is particularly important.
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