Lysosomal metabolomics reveals V-ATPase- and mTOR-dependent regulation of amino acid efflux from lysosomes

Author:

Abu-Remaileh Monther1234ORCID,Wyant Gregory A.1234ORCID,Kim Choah1234ORCID,Laqtom Nouf N.1234ORCID,Abbasi Maria1234ORCID,Chan Sze Ham1ORCID,Freinkman Elizaveta1,Sabatini David M.1234ORCID

Affiliation:

1. Whitehead Institute for Biomedical Research and Massachusetts Institute of Technology, Department of Biology, 9 Cambridge Center, Cambridge, MA 02142, USA.

2. Howard Hughes Medical Institute, Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

3. Koch Institute for Integrative Cancer Research, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.

4. Broad Institute of Harvard and Massachusetts Institute of Technology, 7 Cambridge Center, Cambridge, MA 02142, USA.

Abstract

Regulated lysosomal efflux of amino acids A new technique allows rapid purification of lysosomes and metabolic profiling by liquid chromatography and mass spectrometry. Abu-Remaileh et al. engineered cultured human cells to produce a protein tag on lysosomal membranes that could be used to rapidly precipitate purified lysosomes on magnetic beads. Analysis of their contents under various conditions showed that efflux from the lysosome of most essential amino acids (but not that of most other amino acids) is a regulated process. Amino acid transport was inhibited under conditions of nutrient depletion as a result of inhibition of the mTOR (mechanistic target of rapamycin) protein kinase complex. Science , this issue p. 807

Funder

National Institutes of Health

U.S. Department of Defense

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3