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2 ARTICLES PUBLISHED IN JoVE

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Genetics

An Optogenetic Method to Control and Analyze Gene Expression Patterns in Cell-to-cell Interactions
Akihiro Isomura 1,2, Ryoichiro Kageyama 1,3,4,5
1Institute for Frontier Life and Medical Sciences, Kyoto University, 2Japan Science and Technology Agency, PRESTO, 3Institute for Integrated Cell-Material Sciences, Kyoto University, 4Graduate School of Medicine, Kyoto University, 5Graduate School of Biostudies, Kyoto University

Here, we present a protocol to analyze cell-to-cell transfer of oscillatory information by optogenetic control and live monitoring of gene expression. This approach provides a unique platform to test a functional significance of dynamic gene expression programs in multicellular systems.

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Neuroscience

Dissection of Local Ca2+ Signals in Cultured Cells by Membrane-targeted Ca2+ Indicators
Hiroko Bannai 1,2, Matsumi Hirose 2, Fumihiro Niwa 2,3, Katsuhiko Mikoshiba 2
1Japan Science and Technology Agency, PRESTO, 2Laboratory for Developmental Neurobiology, RIKEN Center for Brain Science, 3École Normale Supèrieure, Institut de Biologie de l'ENS (IBENS), Institut national de la santè et de la recherche mèdicale (INSERM), Centre national de la recherche scientifique (CNRS), École Normale Supèrieure, PSL Research University

Here we present a protocol for Ca2+ imaging in neurons and glial cells, which enables the dissection of Ca2+ signals at subcellular resolution. This process is applicable to all cell types that allow the expression of genetically encoded Ca2+ indicators.

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