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Guidelines for the use and interpretation of assays for monitoring autophagy

文献类型:期刊论文

作者Zhang, Ming-Yong#3; MORE-Author*2; Klionsky, Daniel J.1,4,5
刊名AUTOPHAGY
出版日期2012
卷号8期号:4页码:445-544
关键词Autolysosome Activated Protein-kinase Chaperone-mediated Autophagy Programmed Cell-death Isolated Rat Hepatocytes Starvation-induced Autophagy Vacuole Targeting Pathway Glucagon-induced Autophagy Breast-cancer Cells Betaine Homocysteine Methyltransferase Endoplasmic-reticulum Stress Autophagosome Flux Lc3 Phagophore Lysosome Stress Vacuole
DOI10.4161/auto.19496
英文摘要

In 2008 we published the first set of guidelines for standardizing research in autophagy. Since then, research on this topic has continued to accelerate, and many new scientists have entered the field. Our knowledge base and relevant new technologies have also been expanding. Accordingly, it is important to update these guidelines for monitoring autophagy in different organisms. Various reviews have described the range of assays that have been used for this purpose. Nevertheless, there continues to be confusion regarding acceptable methods to measure autophagy, especially in multicellular eukaryotes. A key point that needs to be emphasized is that there is a difference between measurements that monitor the numbers or volume of autophagic elements (e.g., autophagosomes or autolysosomes) at any stage of the autophagic process vs. those that measure flux through the autophagy pathway (i.e., the complete process); thus, a block in macroautophagy that results in autophagosome accumulation needs to be differentiated from stimuli that result in increased autophagic activity, defined as increased autophagy induction coupled with increased delivery to, and degradation within, lysosomes (in most higher eukaryotes and some protists such as Dictyostelium) or the vacuole (in plants and fungi). In other words, it is especially important that investigators new to the field understand that the appearance of more autophagosomes does not necessarily equate with more autophagy. In fact, in many cases, autophagosomes accumulate because of a block in trafficking to lysosomes without a concomitant change in autophagosome biogenesis, whereas an increase in autolysosomes may reflect a reduction in degradative activity. Here, we present a set of guidelines for the selection and interpretation of methods for use by investigators who aim to examine macroautophagy and related processes, as well as for reviewers who need to provide realistic and reasonable critiques of papers that are focused on these processes. These guidelines are not meant to be a formulaic set of rules, because the appropriate assays depend in part on the question being asked and the system being used. In addition, we emphasize that no individual assay is guaranteed to be the most appropriate one in every situation, and we strongly recommend the use of multiple assays to monitor autophagy. In these guidelines, we consider these various methods of assessing autophagy and what information can, or cannot, be obtained from them. Finally, by discussing the merits and limits of particular autophagy assays, we hope to encourage technical innovation in the field.

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语种英语
源URL[http://210.77.82.179/handle/2SCSIERX/1025]  
专题研究领域
作者单位1.Univ Michigan, Dept Biol Chem, Ann Arbor, MI 48109 USA
2.(Note: Add omitted) 4 represents Institution ranks from No4-1149
3.(Note:5 represents 1150) Chinese Acad Sci, S China Bot Garden, Key Lab Plant Resources Conservat & Sustainable U, Guangzhou, Guangdong, Peoples R China
4.Univ Michigan, Inst Life Sci, Ann Arbor, MI 48109 USA
5.Univ Michigan, Dept Mol Cellular & Dev Biol, Ann Arbor, MI 48109 USA
推荐引用方式
GB/T 7714
Zhang, Ming-Yong#,MORE-Author*,Klionsky, Daniel J.. Guidelines for the use and interpretation of assays for monitoring autophagy[J]. AUTOPHAGY,2012,8(4):445-544.
APA Zhang, Ming-Yong#,MORE-Author*,&Klionsky, Daniel J..(2012).Guidelines for the use and interpretation of assays for monitoring autophagy.AUTOPHAGY,8(4),445-544.
MLA Zhang, Ming-Yong#,et al."Guidelines for the use and interpretation of assays for monitoring autophagy".AUTOPHAGY 8.4(2012):445-544.

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