Perilipin 2 (Plin2) is known to be dysregulated in several human malignancies, which facilitates cancer progression. Recent studies have found that the abnormal expression of Plin2 is associated with poor prognosis of non-small cell lung cancer (NSCLC). However, the specific role of Plin2 and its underlying mechanism remain unclear. This study revealed that Plin2 expression was low in NSCLC tissues, and its relatively higher expression indicated larger tumor size and poorer prognosis. In vitro experiments proved that Plin2 promoted NSCLC cellular proliferation and inhibited autophagy by activating the AKT/mTOR pathway. Meanwhile, treatment with the AKT phosphorylation promoter or inhibitor neutralized the influence of Plin2 depletion or over-expression on proliferation and autophagy, respectively. In vivo study showed that Plin2 stimulated subcutaneous tumorigenesis of NSCLC cells in nude mice. Collectively, this study clarified the carcinogenic role of Plin2 and its molecular mechanism in NSCLC progression, which may facilitate a targeted therapy in the future.
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http://dx.doi.org/10.1016/j.yexcr.2024.113955 | DOI Listing |
Comp Biochem Physiol A Mol Integr Physiol
January 2025
Faculty of Science, Damietta University, New Damietta 34517, Egypt. Electronic address:
Although a giant Egyptian domestic non-migratory duck breed is phenotypically identical to the migratory Mallard, yet it is three times larger. The current study sought to determine the genetic and metabolic differences between this duck and Mallard, which arrives in Egypt in September for wintering and departs in March. Mitochondrial DNA control region (D-loop) was extracted, amplified, sequenced, and analyzed in both ducks.
View Article and Find Full Text PDFRespir Res
January 2025
Department of Regenerative and Infectious Pathology, Hamamatsu University School of Medicine, 1-20-1 Handayama Chuo-ku, Hamamatsu, Shizuoka, 431-3192, Japan.
Background: Recent advances in comprehensive gene analysis revealed the heterogeneity of mouse lung fibroblasts. However, direct comparisons between these subpopulations are limited due to challenges in isolating target subpopulations without gene-specific reporter mouse lines. In addition, the properties of lung lipofibroblasts remain unclear, particularly regarding the appropriate cell surface marker and the niche capacity for alveolar epithelial cell type 2 (AT2), an alveolar tissue stem cell.
View Article and Find Full Text PDFDiabetes
January 2025
Nutritional Sciences and Toxicology Department, University of California Berkeley, Berkeley, CA 94720, US.
Adipocyte hypertrophy significantly contributes to insulin resistance and metabolic dysfunction. Our previous research established JMJD8 as a mediator of insulin resistance, noting its role in promoting adipocyte hypertrophy within an autonomous adipocyte context. Nevertheless, the precise mechanisms underlying this phenomenon remained elusive.
View Article and Find Full Text PDFClin Chem
December 2024
Department of Clinical Biochemistry (Synnovis), King's College Hospital NHS Foundation Trust, Denmark Hill, London SE5 9RS, United Kingdom.
Background: Noninvasive tests (NITs) to monitor metabolic dysfunction-associated steatohepatitis (MASH) progression and response to interventions are needed because of the risks of liver biopsy. A monocytes-based diagnostic test using perilipin-2 (PLIN2) and Ras-related protein-14 (RAB14) predict the severity of MASH and fibrosis. Here we compared the performances of PLIN2 and RAB14 with cytokeratin-18 (CK18) assessed by Ella™ or M65 ELISA in predicting MASH and fibrosis resolution following bariatric surgery in a longitudinal and histologically characterized cohort of individuals with obesity.
View Article and Find Full Text PDFPlacenta
December 2024
Ageing and Stress Group, i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, 4200-135, Porto, Portugal; Faculdade de Medicina Veterinária da Universidade Lusófona e Instituto Politécnico da Lusofonia, COFAC - Cooperativa de Formação e Animação Cultural, C.R.L., Campo Grande 376, 1749-024, Lisboa, Portugal; Escola Superior de Saúde, Politécnico do Porto, Rua Dr. António Bernardino de Almeida 400, 4200-072, Porto, Portugal. Electronic address:
Background And Aim: Pregnancy after the age of 35 is correlated with an increased risk of impaired placentation and the development of pregnancy-associated complications. Changes in uterine redox balance seem to play a role in these settings. In this work, we hypothesized that local redox dysregulation impacts the placenta metabolic profile.
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