Int J Oncol
Department of Experimental Hematology and Biochemistry, Beijing Key Laboratory for Radiobiology, Beijing Institute of Radiation Medicine, Beijing 100850, P.R. China.
Published: October 2021
Pyroptosis is mediated by gasdermins and serves a critical role in ionizing radiation (IR)‑induced damage in normal tissues, but its role in cancer radiotherapy and underlying mechanisms remains unclear. Long non‑coding (lnc) RNAs serve important roles in regulating the radiosensitivity of cancer cells. The present study aimed to investigate the mechanistic involvement of lncRNAs in IR‑induced pyroptosis in human colorectal cancer HCT116 cells. LncRNA, microRNA (miR)‑448 and gasdermin E (GSDME) levels were evaluated using reverse transcription‑quantitative polymerase chain reaction. Protein expression and activation of gasdermins were measured using western blotting. The binding association between miR‑448 and GSDME was assessed using the dual‑luciferase reporter assay. Pyroptosis was examined using phase‑contrast microscopy, flow cytometry, Cell Counting Kit‑8 assay and lactate dehydrogenase release assay. IR dose‑dependently induced GSDME‑mediated pyroptosis in HCT116 cells. GSDME was identified as a downstream target of miR‑448. LncRNA nuclear paraspeckle assembly transcript 1 (NEAT1) was upregulated in response to IR and enhanced GSDME expression by negatively regulating miR‑448 expression. Notably, NEAT1 knockdown suppressed IR‑induced pyroptosis, full‑length GSDME expression and GSDME cleavage compared with that in irradiated cells. In addition, NEAT1 knockdown rescued the IR‑induced decrease in cell viability in HCT116 cells. The findings of the present study indicated that lncRNA NEAT1 modulates IR‑induced pyroptosis and viability in HCT116 cells via miR‑448 by regulating the expression, but not activation of GSDME. The present study provides crucial mechanistic insight into the potential role of lncRNA NEAT1 in IR‑induced pyroptosis.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8448542 | PMC |
http://dx.doi.org/10.3892/ijo.2021.5259 | DOI Listing |
Heliyon
January 2025
Division of Nephrology, University of Rochester Medical Center, Rochester, NY, USA.
Background: There is higher prevalence of chronic kidney disease (CKD) in burn patients after hospital discharge; however, the cause remains unclear. This study aimed to investigate the lasting impacts of severe burns on the kidneys and to explore potential treatments.
Methods: The study examined the effects of burning on healthy mice and adenine-induced CKD mice.
Iran J Basic Med Sci
January 2025
Department of Nephrology, Affiliated Hospital of Jiangnan University, Wuxi, China.
Objectives: To investigate the natural product sulforaphane (SFN) in protection of membranous nephropathy (MN) by inhibiting oxidative stress-associated podocyte pyroptosis.
Materials And Methods: A passive Heymann nephritis (PHN) model was established and treated with SFN. Clinical manifestations were examined by testing 24-hr urine protein, albumin, total cholesterol, triglyceride, high-density and low-density lipoprotein levels.
BMC Womens Health
January 2025
Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
Background: Cuproptosis is a novel form of cell death, acting on the tricarboxylic acid cycle in mitochondrial respiration and mediated by protein lipoylation. Other cancer cell death processes, such as necroptosis, pyroptosis, and ferroptosis, have been shown to play crucial roles in the therapy and prognosis of ovarian cancer. However, the role of cuproptosis in ovarian cancer remains unclear.
View Article and Find Full Text PDFEur J Pharmacol
January 2025
Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Northwest University, 229 Taibai North Road, Xi'an, 710069, PR China. Electronic address:
Acta Trop
January 2025
State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, Institute of Zoonosis and College of Veterinary Medicine, Jilin University, Changchun, 130062, China. Electronic address:
Giardia duodenalis is a waterborne zoonotic protozoan that causes gastrointestinal inflammation. Giardiasis and metabolic illnesses share features such as chronic inflammation and intestinal symptoms. Receptor for advanced glycation end products (RAGE) signaling plays a role in metabolic illnesses and intestinal inflammatory responses.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!
© LitMetric 2025. All rights reserved.