AI Article Synopsis
- Annexin A1 (ANXA1) is a protein that binds to cell membranes in response to calcium and is involved in muscle repair and cell migration.
- Researchers hypothesized that ANXA1 is released from muscle during contractions to aid in cell damage repair.
- The study found that during muscle contractions, ANXA1 is fragmented by calpain and this fragmented form has a beneficial effect on healing damaged muscle cells.
Article Abstract
The main function of annexin A1 (ANXA1), a member of the annexin superfamily, is to bind to cellular membranes in a Ca(2+)-dependent manner. In skeletal muscle, ANXA1 is thought to be involved in the repair of damaged membrane tissue and in the migration of muscle cells. We hypothesized that ANXA1 is one of the myokines secreted during muscle contractions to accelerate the repair of cell damage after contraction. Here we performed cell contractions by electric pulse stimulation; the results revealed that a fragmented form of ANXA1 was cleaved by calpain and selectively secreted from skeletal muscle cells by contraction. We therefore realized that muscle-contraction-induced calpain-dependent ANXA1 fragmentation has a wound-healing effect on damaged cells. This suggested that not the intact form but rather fragmented ANXA1 is a contraction-induced myokine.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s11010-015-2579-8 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Ectopic Tooth in the Maxillary Sinus With Odontogenic Keratocyst: Treated by Caldwell-luc Surgery and Bone Lid Technique.
J Craniofac Surg
January 2025
Department of Oral, Plastic, and Aesthetic Surgery, Hospital of Stomatology, Jilin University, Changchun, Jilin, China.
Odontogenic keratocysts (OKCs) are an invasive type of odontogenic cyst that rarely occurs in the maxilla. This article presents a case of OKC complicated with ectopic teeth occurring in the maxillary sinus. This article collects a case of a 19-year-old female patient with an ectopic tooth in the maxillary sinus associated with an OKC.
View Article and Find Full Text PDFMitochondrial Fragmentation as a Key Driver of Neurodegenerative Disease.
Curr Alzheimer Res
January 2025
Institute of Cell Biophysics, Russian Academy of Sciences - A Separate Division of Federal Research Center Pushchino Research Center for Biological Studies, Russian Academy of Sciences (ICB RAS), 142290, Russia.
Mitochondrial form and function are intricately linked through dynamic processes of fusion and fission, and disruptions in these processes are key drivers of neurodegenerative diseases, like Alzheimer's. The inability of mitochondria to transition between their dynamic forms is a critical factor in the development of pathological states. In this paper, we focus on the importance of different types of mitochondrial phenotypes in nervous tissue, discussing how mitochondria in Alzheimer's disease are "stuck" in certain patterns and how this pattern maintains itself.
View Article and Find Full Text PDFAn Analysis of Percutaneous Nephrolithotomy (PCNL) Performed at the Institute of Kidney Disease, Pakistan: Stone Clearance and Complications.
Cureus
December 2024
Department of Cardiovascular Medicine, Khyber Medical Institute of Medical Sciences, Kohat, PAK.
Background: Percutaneous nephrolithotomy (PCNL) is the preferred treatment for large renal stones, yet variability in outcomes arises from patient-specific factors and institutional practices. Understanding complications and predictors of success is essential to improving procedural efficacy.
Objective: This study aimed to evaluate stone clearance rates, complications classified using the Clavien-Dindo system, and predictors of PCNL outcomes, with a focus on improving lower calyx stone clearance.
Lung ultrasound for assessing disease progression in UIP and NSIP: a comparative study with HRCT and PFT/DLCO.
BMC Pulm Med
January 2025
Tehran Lung Research and Developmental Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Background: This study aims to compare Lung Ultrasound (LUS) findings with High-Resolution Computerized Tomography (HRCT) and Pulmonary Function Tests (PFTs) to detect the severity of lung involvement in patients with Usual Interstitial Pneumonia (UIP) and Non-Specific Interstitial Pneumonia (NSIP).
Methods: A cross-sectional study was conducted on 35 UIP and 30 NSIP patients at a referral hospital. All patients underwent LUS, HRCT, and PFT.
Fap-targeting biomimetic nanosystem to restore the activated cancer-associated fibroblasts to quiescent state for breast cancer radiotherapy.
Int J Pharm
January 2025
Department of Pharmacy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China; Hubei Province Clinical Research Center for Precision Medicine for Critical Illness, Wuhan, 430022, China. Electronic address:
Cancer associated fibroblasts (CAFs) are one of the most important stromal cells in the tumor microenvironment, playing a pivotal role in the development, recurrence, metastasis, and immunosuppression of cancer and treatment resistance. Here, we developed a core-shell biomimetic nanosystem termed as FAP-C NPs. This system was comprised of 4 T1 extracellular vesicles fused with a FAP single-chain antibody fragment to form the biomimetic shell, and PLGA nanoparticles loaded with calcipotriol as the core.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!