In skeletal muscle, Ca2+ necessary for muscle contraction is stored and released from the sarcoplasmic reticulum (SR), a specialized form of endoplasmic reticulum through the mechanism known as excitation-contraction (E-C) coupling. Following activation of skeletal muscle contraction by the E-C coupling mechanism, replenishment of intracellular stores requires reuptake of cytosolic Ca2+ into the SR by the activity of SR Ca2+-ATPases, but also Ca2+ entry from the extracellular space, through a mechanism called store-operated calcium entry (SOCE). The fine orchestration of these processes requires several proteins, including Ca2+ channels, Ca2+ sensors, and Ca2+ buffers, as well as the active involvement of mitochondria. Mutations in genes coding for proteins participating in E-C coupling and SOCE are causative of several myopathies characterized by a wide spectrum of clinical phenotypes, a variety of histological features, and alterations in intracellular Ca2+ balance. This review summarizes current knowledge on these myopathies and discusses available knowledge on the pathogenic mechanisms of disease.

Rossi, D., Catallo, M.R., Pierantozzi, E., Sorrentino, V. (2022). Mutations in proteins involved in E-C coupling and SOCE and congenital myopathies. THE JOURNAL OF GENERAL PHYSIOLOGY, 154(9) [10.1085/jgp.202213115].

Mutations in proteins involved in E-C coupling and SOCE and congenital myopathies

Rossi, D.;Catallo, M. R.;Pierantozzi, E.;Sorrentino, V.
2022-01-01

Abstract

In skeletal muscle, Ca2+ necessary for muscle contraction is stored and released from the sarcoplasmic reticulum (SR), a specialized form of endoplasmic reticulum through the mechanism known as excitation-contraction (E-C) coupling. Following activation of skeletal muscle contraction by the E-C coupling mechanism, replenishment of intracellular stores requires reuptake of cytosolic Ca2+ into the SR by the activity of SR Ca2+-ATPases, but also Ca2+ entry from the extracellular space, through a mechanism called store-operated calcium entry (SOCE). The fine orchestration of these processes requires several proteins, including Ca2+ channels, Ca2+ sensors, and Ca2+ buffers, as well as the active involvement of mitochondria. Mutations in genes coding for proteins participating in E-C coupling and SOCE are causative of several myopathies characterized by a wide spectrum of clinical phenotypes, a variety of histological features, and alterations in intracellular Ca2+ balance. This review summarizes current knowledge on these myopathies and discusses available knowledge on the pathogenic mechanisms of disease.
2022
Rossi, D., Catallo, M.R., Pierantozzi, E., Sorrentino, V. (2022). Mutations in proteins involved in E-C coupling and SOCE and congenital myopathies. THE JOURNAL OF GENERAL PHYSIOLOGY, 154(9) [10.1085/jgp.202213115].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/1215736