Genes and Environment

The Pig-a assay, a promising tool for evaluating in vivo genotoxicity, is based on flow cytometric enumeration of red blood cells (RBCs) that are deficient in glycosylphosphatidylinositol anchor protein. Various approaches for measuring Pig-a mutant cells have been developed, particularly focusing on measuring mutants in peripheral RBCs (called the RBC Pig-a assay) and reticulocytes (the PIGRET assay). To verify the potential and usefulness of these assays for short-term testing, inter-laboratory trial involving 16 laboratories were conducted. 
In this article, the authors describe the standard protocol for the RBC Pig-a assay used in the inter-laboratory trial.

JEMS Open Symposia 2017&2018: “Challenges of Young Scientists”
Collection published 14 February 2019
10th Anniversary Special Issue
Collection published 1 July 2016
JEMS Open Symposium 2015: “Life Style and Cancer”
Collection published: 22 January 2016
Asian Conference on Environmental Mutagens (ACEM2014)
Collection published: 1 August 2015

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About JEMS
The mission of the Japanese Environmental Mutagen Society is to discover how environmental mutagens affect all organisms, and to promote and apply this knowledge to protect human health and our environment. The Japanese Environmental Mutagen Society was founded in 1972, and since then the society has hosted annual conferences and open symposia on timely topics. The society is a member of the Asian Association of the Environmental Mutagen Societies and the International Association of Environmental Mutagenesis and Genomics Societies.

Masami Yamada studied bacterial genetics and got a PhD degree from Osaka University. Since 1990, using genetic engineering techniques, she has constructed many strains from standard tester strains for the Ames test at the National Institute of Health Sciences, Tokyo. Such strains are useful for research fields on environmental mutagens.
Strain requests come to her every year from domestic, Asia, Europe, North America, South America, and other countries. Currently, she teaches Biology and Genetic Engineering at National Defense Academy of Japan.