Atlastin regulates store-operated calcium entry for nerve growth factor-induced neurite outgrowth. 2017

Jing Li, and Bing Yan, and Hongjiang Si, and Xu Peng, and Shenyuan L Zhang, and Junjie Hu
Department of Genetics and Cell Biology, College of Life Sciences, Nankai University, and Tianjin Key Laboratory of Protein Sciences, Tianjin 300071, China.

Homotypic membrane fusion of the endoplasmic reticulum (ER) is mediated by a class of dynamin-like GTPases known as atlastin (ATL). Depletion of or mutations in ATL cause an unbranched ER morphology and hereditary spastic paraplegia (HSP), a neurodegenerative disease characterized by axon shortening in corticospinal motor neurons and progressive spasticity of the lower limbs. How ER shaping is linked to neuronal defects is poorly understood. Here, we show that dominant-negative mutants of ATL1 in PC-12 cells inhibit nerve growth factor (NGF)-induced neurite outgrowth. Overexpression of wild-type or mutant ATL1 or depletion of ATLs alters ER morphology and affects store-operated calcium entry (SOCE) by decreasing STIM1 puncta formation near the plasma membrane upon calcium depletion of the ER. In addition, blockage of the STIM1-Orai pathway effectively abolishes neurite outgrowth of PC-12 cells stimulated by NGF. These results suggest that SOCE plays an important role in neuronal regeneration, and mutations in ATL1 may cause HSP, partly by undermining SOCE.

UI MeSH Term Description Entries
D008565 Membrane Proteins Proteins which are found in membranes including cellular and intracellular membranes. They consist of two types, peripheral and integral proteins. They include most membrane-associated enzymes, antigenic proteins, transport proteins, and drug, hormone, and lectin receptors. Cell Membrane Protein,Cell Membrane Proteins,Cell Surface Protein,Cell Surface Proteins,Integral Membrane Proteins,Membrane-Associated Protein,Surface Protein,Surface Proteins,Integral Membrane Protein,Membrane Protein,Membrane-Associated Proteins,Membrane Associated Protein,Membrane Associated Proteins,Membrane Protein, Cell,Membrane Protein, Integral,Membrane Proteins, Integral,Protein, Cell Membrane,Protein, Cell Surface,Protein, Integral Membrane,Protein, Membrane,Protein, Membrane-Associated,Protein, Surface,Proteins, Cell Membrane,Proteins, Cell Surface,Proteins, Integral Membrane,Proteins, Membrane,Proteins, Membrane-Associated,Proteins, Surface,Surface Protein, Cell
D002118 Calcium A basic element found in nearly all tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes. Coagulation Factor IV,Factor IV,Blood Coagulation Factor IV,Calcium-40,Calcium 40,Factor IV, Coagulation
D002460 Cell Line Established cell cultures that have the potential to propagate indefinitely. Cell Lines,Line, Cell,Lines, Cell
D004721 Endoplasmic Reticulum A system of cisternae in the CYTOPLASM of many cells. In places the endoplasmic reticulum is continuous with the plasma membrane (CELL MEMBRANE) or outer membrane of the nuclear envelope. If the outer surfaces of the endoplasmic reticulum membranes are coated with ribosomes, the endoplasmic reticulum is said to be rough-surfaced (ENDOPLASMIC RETICULUM, ROUGH); otherwise it is said to be smooth-surfaced (ENDOPLASMIC RETICULUM, SMOOTH). (King & Stansfield, A Dictionary of Genetics, 4th ed) Ergastoplasm,Reticulum, Endoplasmic
D005110 Extracellular Space Interstitial space between cells, occupied by INTERSTITIAL FLUID as well as amorphous and fibrous substances. For organisms with a CELL WALL, the extracellular space includes everything outside of the CELL MEMBRANE including the PERIPLASM and the cell wall. Intercellular Space,Extracellular Spaces,Intercellular Spaces,Space, Extracellular,Space, Intercellular,Spaces, Extracellular,Spaces, Intercellular
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000071446 Neuronal Outgrowth Formation of neuronal processes (AXONS; NEURITES) toward a target cell. Axon Outgrowth,Neurite Outgrowth
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015419 Spastic Paraplegia, Hereditary A group of inherited diseases that share similar phenotypes but are genetically diverse. Different genetic loci for autosomal recessive, autosomal dominant, and x-linked forms of hereditary spastic paraplegia have been identified. Clinically, patients present with slowly progressive distal limb weakness and lower extremity spasticity. Peripheral sensory neurons may be affected in the later stages of the disease. (J Neurol Neurosurg Psychiatry 1998 Jan;64(1):61-6; Curr Opin Neurol 1997 Aug;10(4):313-8) Hereditary Spastic Paraplegia,X-Linked, Spastic Paraplegia, Hereditary,Autosomal Dominant Hereditary Spastic Paraplegia,Autosomal Dominant Spastic Paraplegia Hereditary,Autosomal Recessive Hereditary Spastic Paraplegia,Autosomal Recessive Spastic Paraplegia, Hereditary,CMT with Pyramidal Features,Charcot-Marie-Tooth Disease with Pyramidal Features, Autosomal Dominant,HMSN 5,HMSN Type V,HMSN V,HMSN V (Hereditary Motor and Sensory Neuropathy Type V),Hereditary Autosomal Dominant Spastic Paraplegia,Hereditary Autosomal Recessive Spastic Paraplegia,Hereditary Motor And Sensory Neuropathy V,Hereditary Motor and Sensory Neuropathy 5,Hereditary Motor-Sensory Neuropathy with Pyramidal Signs,Hereditary Spastic Paraplegia, Autosomal Recessive,Hereditary X-Linked Recessive Spastic Paraplegia,Hereditary, Spastic Paraplegia, Autosomal Dominant,Hereditary, Spastic Paraplegia, X-Linked Recessive,Hypertrophic Motor-Sensory Neuropathy-Spastic Paraplegia,Paraplegia, Spastic, Hereditary,Peroneal Muscular Atrophy with Pyramidal Features, Autosomal Dominant,Spastic Paraplegia 2,Spastic Paraplegia Type 2,Spastic Paraplegia, Autosomal Dominant, Hereditary,Spastic Paraplegia, Autosomal Recessive, Hereditary,Spastic Paraplegia, Hereditary, Autosomal Dominant,Spastic Paraplegia, Hereditary, Autosomal Recessive,Spastic Paraplegia, Hereditary, X-Linked Recessive,Spastic Paraplegia, X-Linked Recessive, Hereditary,Spastic Paraplegia-Hypertrophic Motor-Sensory Neuropathy,Type V Hereditary Motor and Sensory Neuropathy,X Linked Recessive Hereditary Spastic Paraplegia,X-linked Recessive Hereditary Spastic Paraplegia,Charcot Marie Tooth Disease with Pyramidal Features, Autosomal Dominant,Hereditary Motor Sensory Neuropathy with Pyramidal Signs,Hereditary Spastic Paraplegias,Hereditary X Linked Recessive Spastic Paraplegia,Hypertrophic Motor Sensory Neuropathy Spastic Paraplegia,Paraplegia, Hereditary Spastic,Paraplegias, Hereditary Spastic,Spastic Paraplegia Hypertrophic Motor Sensory Neuropathy,Spastic Paraplegias, Hereditary,Type V, HMSN
D015870 Gene Expression The phenotypic manifestation of a gene or genes by the processes of GENETIC TRANSCRIPTION and GENETIC TRANSLATION. Expression, Gene,Expressions, Gene,Gene Expressions

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