Fluxes of calcium ions (Ca2+) in rod photoreceptors are major regulators of steady-state and light-evoked intracellular reactions to stimuli. The homeostasis of Ca2+ is regulated by channels and pumps localized at the plasma membrane and in intracellular organelles. Photoreceptor degeneration is frequently associated with Ca2+ homeostasis disruption and stimulation of Ca2+ activated proteases, such as calpains. These events trigger molecular pathways leading to cell death. In this chapter we discuss Ca2+ channels and pumps as well as calpains as potential targets of new therapies for retinal degeneration.
CHAPTER 3. Modulation of Calcium Overload and Calpain Activity / Paquet-Durand, François; Ekström, Per; Marigo, Valeria. - 2019:66(2019), pp. 48-60. [10.1039/9781788013666-00048]
CHAPTER 3. Modulation of Calcium Overload and Calpain Activity
Marigo, Valeria
2019
Abstract
Fluxes of calcium ions (Ca2+) in rod photoreceptors are major regulators of steady-state and light-evoked intracellular reactions to stimuli. The homeostasis of Ca2+ is regulated by channels and pumps localized at the plasma membrane and in intracellular organelles. Photoreceptor degeneration is frequently associated with Ca2+ homeostasis disruption and stimulation of Ca2+ activated proteases, such as calpains. These events trigger molecular pathways leading to cell death. In this chapter we discuss Ca2+ channels and pumps as well as calpains as potential targets of new therapies for retinal degeneration.
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