Title

Guidelines for the use and interpretation of assays for monitoring autophagy (4th edition)

Authors

Daniel J. Klionsky, Life Sciences Institute and Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, MI, USA.
Amal Kamal Abdel-Aziz, Department of Pharmacology and Toxicology, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt; Department of Experimental Oncology, IEO, European Institute of Oncology IRCCS, Milan, Italy.
Sara Abdelfatah, Johannes Gutenberg University, Institute of Pharmaceutical and Biomedical Sciences, Department of Pharmaceutical Biology, Mainz, Germany.
Mahmoud Abdellatif, Medical University of Graz, Division of Cardiology, Graz, Austria.
Asghar Abdoli, Pasteur institute of Iran, Department of Hepatitis and HIV, Tehran, Iran.
Steffen Abel, Department of Molecular Signal Processing, Leibniz Institute of Plant Biochemistry, Halle (Saale), Germany.
Hagai Abeliovich, Hebrew University of Jerusalem, Department of Biochemistry and Food Science, Rehovot, Israel.
Marie H. Abildgaard, Danish Cancer Society Research Center, RNA and Autophagy Group, Copenhagen, Denmark.
Yakubu Princely Abudu, University of Tromsø - The Arctic University of Norway, Department of Medical Biology, Tromsø, Norway.
Abraham Acevedo-Arozena, Hospital Universitario de Canarias, Research Unit; CIBERNED and Universidad de La Laguna, ITB, Santa Cruz de Tenerife, Spain.
Iannis E. Adamopoulos, University of California, Davis, Division of Rheumatology, Allergy and Clinical Immunology, School of Medicine, Sacramento, CA, USA.
Khosrow Adeli, University of Toronto, Department of Biochemistry, Toronto, Ontario, Canada.
Timon E. Adolph, Medical University Innsbruck, Department of Medicine I, Innsbruck, Austria.
Annagrazia Adornetto, University of Calabria, Department of Pharmacy, Health and Nutritional Sciences, Arcavacata di Rende (CS), Italy.
Elma Aflaki, National Institutes of Health, National Eye institute, Protein Structure and Function Section, Bethesda, MD, USA.
Galila Agam, Ben-Gurion University of the Negev, Faculty of Health Sciences, Department of Clinical Biochemistry and Pharmacology, Beer-Sheva, Israel.
Anupam Agarwal, University of Alabama at Birmingham, Division of Nephrology and Birmingham VA Medical Center, Birmingham, AL, USA.

Document Type

Article

Publication Date

1-1-2021

Abstract

In 2008, we published the first set of guidelines for standardizing research in autophagy. Since then, this topic has received increasing attention, and many scientists have entered the field. Our knowledge base and relevant new technologies have also been expanding. Thus, it is important to formulate on a regular basis updated guidelines for monitoring autophagy in different organisms. Despite numerous reviews, there continues to be confusion regarding acceptable methods to evaluate autophagy, especially in multicellular eukaryotes. Here, we present a set of guidelines for investigators to select and interpret methods to examine autophagy and related processes, and for reviewers to provide realistic and reasonable critiques of reports that are focused on these processes. These guidelines are not meant to be a dogmatic set of rules, because the appropriateness of any assay largely depends on the question being asked and the system being used. Moreover, no individual assay is perfect for every situation, calling for the use of multiple techniques to properly monitor autophagy in each experimental setting. Finally, several core components of the autophagy machinery have been implicated in distinct autophagic processes (canonical and noncanonical autophagy), implying that genetic approaches to block autophagy should rely on targeting two or more autophagy-related genes that ideally participate in distinct steps of the pathway. Along similar lines, because multiple proteins involved in autophagy also regulate other cellular pathways including apoptosis, not all of them can be used as a specific marker for autophagic responses. Here, we critically discuss current methods of assessing autophagy and the information they can, or cannot, provide. Our ultimate goal is to encourage intellectual and technical innovation in the field.

Publication Source (Journal or Book title)

Autophagy

First Page

1

Last Page

382

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