Muscle Cell News

Muscle Cell News is an online resource dedicated to the latest research into smooth, skeletal, and cardiac muscle cells.

Impairing Ferroptosis through the PI3K/Akt/Nrf2 Pathway: The Way for Nerve Growth Factor to Mitigate Hypoxia-induced Cardiomyocyte Damage

[Cell Biochemistry and Biophysics] In H9C2 cells, exposure to hypoxia for 24 hours led to weakened nerve growth factor level, as well as lowered cell vitality and superoxide dismutase activity, but elevated levels of LDH, Fe2+, malondialdehyde, and reactive oxygen species, triggering ferroptosis.

Dilated Cardiomyopathy–Associated Skeletal Muscle Actin (ACTA1) Mutation R256H Disrupts Actin Structure and Function and Causes Cardiomyocyte Hypocontractility

[Proceedings of The National Academy of Sciences of The United States of America] The authors demonstrated that a skeletal muscle actin mutation potently caused multiple defects in actin function at the atomic and molecular scales, and it functions in a dominant fashion, leading to cardiomyocyte contractile defects.

Empagliflozin Attenuates Neointima Formation After Arterial Injury and Inhibits Smooth Muscle Cell Proliferation and Migration by Suppressing Platelet‐Derived Growth Factor–Related Signaling

[Journal of The American Heart Association] Researchers highlighted the crucial role of suppressing platelet‐derived growth factor‐related signaling in mediating the beneficial effects of empagliflozin on neointima formation and vascular smooth muscle cell function, which were independent of sodium-glucose cotransporter 2 and glycemic control.

Extracellular Matrix-Mimicking Cryogels Composed of Methacrylated Fucoidan Enhance Vascularized Skeletal Muscle Regeneration Following Volumetric Muscle Loss

[International Journal of Biological Macromolecules] Methacrylated fucoidan (FuMA) was synthesized by grafting the methacryloyl group onto fucoidan. In vitro experiments demonstrated that treatment with FuMA significantly up-regulated myogenic markers' expression and promoted myotubes' formation in C2C12 myoblast cells.

m6A Modification of Profilin-1 in Vascular Smooth Muscle Cells Drives Phenotype Switching and Neointimal Hyperplasia via Activation of the p-ANXA2/STAT3 Pathway

[Arteriosclerosis Thrombosis and Vascular Biology] Investigators unveil the significance of PFN1 N6-methyladenosine modification in vascular smooth muscle cells, demonstrating its role in promoting phenotype switching and neointimal hyperplasia through the activation of the p-ANXA2/STAT3 pathway.

Atheroma Transcriptomics Identifies ARNTL as a Smooth Muscle Cell Regulator and with Clinical and Genetic Data Improves Risk Stratification

[European Heart Journal] Scientists revealed novel coronary artery disease-associated variants that may be functionally linked to smooth muscle cells (SMCs) in atherosclerotic plaques. Specifically, variants in the ARNTL gene may influence SMC ratios and function, and its role as a regulator of SMC proliferation should be further investigated.

An Emerging Double-Edged Sword Role of Ferroptosis in Cardiovascular Disease (Review)

[International Journal of Molecular Medicine] The authors provided an in‑depth analysis of advancements in understanding the mechanisms underlying ferroptosis. The present manuscript summarized the interplay between ferroptosis and cardiovascular diseases, highlighting its dual roles in these conditions.

Lilly’s Muvalaplin Lowered Lipoprotein(a) Levels in Adults with High Risk for Cardiovascular Events by Up to 85% at Highest Tested Dose

[Eli Lilly and Company] Eli Lilly and Company announced positive Phase II results for muvalaplin, an investigational once-daily, orally administered selective inhibitor of lipoprotein(a) [Lp(a)], a genetically inherited risk factor for heart disease.

The De Novo Purine Synthesis Enzyme Adssl1 Promotes Cardiomyocyte Proliferation and Cardiac Regeneration

[Science Signaling] Using loss- and gain-of-function genetic approaches, investigators explored the role of the muscle-specific de novo purine synthesis enzyme Adssl1 in cardiac regeneration.

Heat Exposure Promotes Sarcopenia via Gut Microbiota-Derived Metabolites

[Aging Cell] Scientists demonstrated that chronic heat exposure induced skeletal muscle volume loss, leading to muscle strength and functional decline in mice.

Protease Activated Receptor 2 Deficiency Retards Progression of Abdominal Aortic Aneurysms by Modulating Phenotypic Transformation of Vascular Smooth Muscle Cells via ERK Signaling

[Experimental Cell Research] Angiotensin II (Ang II) and β-aminopropionitrile were administered to wild-type mice to induce abdominal aortic aneurysm. Increased PAR2 expression was observed in the aneurysmal tissues of these mice and in Ang II-treated vascular smooth muscle cells.

VRAC Complex Modulates Mechano-Electrical Signal Responses in Human Airway Smooth Muscle Shortening

[American Journal of Respiratory Cell and Molecular Biology] Researchers explored the physiological role of volume-regulated anion channel (VRAC) in excitation-contraction coupling and shortening of human airway smooth muscle (HASM). In HASM cells, pharmacological inhibition of VRAC with DCPIB markedly attenuated swell-activated Cl- conductance and contractile agonist-induced cellular stiffening as measured by single-cell patch clamp and optical magnetic twisting cytometry, respectively.

Every day, our editorial team sifts through the most recent scientific literature to help keep researchers and medical professionals current. Muscle Cell News covers the three types of muscle cells: cardiac, skeletal, and smooth muscle. We cover a broad range of topics, including cell culturing, muscle regeneration, and musculoskeletal disorders.

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