Abstract

Mesenchymal stem cell (MSC) transplantation has been widely used as a potential treatment for a variety of diseases. However, the contradiction between the low survival rate of transplanted cells and the beneficial therapeutic effects has affected its clinical use. Lysosomes as organelles at the center of cellular recycling and metabolic signaling, play essential roles in MSC homeostasis. In the first part of this review, we summarize the role of lysosomal acidification dysfunction in MSC senescence. In the second part, we summarize some of the potential strategies targeting lysosomal proteins to enhance the therapeutic effect of MSCs.

Highlights

  • Mesenchymal stem cells (MSCs) are pluripotent stem cells with self-renewal (Pittenger et al, 1999), immunosuppressive (Bartholomew et al, 2002), and anti-inflammatory capabilities (Uccelli et al, 2008)

  • We focus on the relationship between lysosomal acidification and senescence

  • Lysosomes are involved in many other cellular processes, including nutrient sensing (Shin and Zoncu, 2020), metabolic signaling (Sancak et al, 2010), chromatin processing (Ivanov et al, 2013), and plasma membrane repair (Morgan et al, 2011). Each of these behaviors is influenced by the internal pH of the lysosome, which is maintained in the 4.5–5 pH range by the vacuolar H+-ATPases (V-ATPases) and the counterion transporter, which can be either a cation or an anion (Steinberg et al, 2010; Mindell, 2012)

Read more

Summary

Role of Lysosomal Acidification Dysfunction in Mesenchymal Stem Cell Senescence

Weijun Zhang 1,2†, Jinwu Bai 1,2†, Kai Hang 1,2, Jianxiang Xu 1,2, Chengwei Zhou 1,2, Lijun Li 1,2, Zhongxiang Wang 1,2, Yibo Wang 1,2, Kanbin Wang 1,2 and Deting Xue 1,2*. Reviewed by: Marisa Brini, University of Padua, Italy Tang Liu, Central South University, China. Stem Cell Research, a section of the journal Frontiers in Cell and Developmental. Mesenchymal stem cell (MSC) transplantation has been widely used as a potential treatment for a variety of diseases. The contradiction between the low survival rate of transplanted cells and the beneficial therapeutic effects has affected its clinical use. Lysosomes as organelles at the center of cellular recycling and metabolic signaling, play essential roles in MSC homeostasis. In the first part of this review, we summarize the role of lysosomal acidification dysfunction in MSC senescence.

INTRODUCTION
Lysosomal Acidification Dysfunction in Senescence
MECHANISM OF LYSOSOMAL ACIDIFICATION
ROLE OF LYSOSOMAL ACIDIFICATION DYSFUNCTION IN CELLULAR SENESCENCE
Defective Cellular Clearance and Accumulation of Toxic Proteins
Decreased Mitophagy and ROS Accumulation
PREVENTING LYSOSOMAL ACIDIFICATION DYSFUNCTION AND SENESCENCE IN MSCS
Nanomaterials and Artificial Small Molecule
Other Ion Channels in Lysosome Membrane
DISCUSSION
AUTHOR CONTRIBUTIONS
Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call