In vivo monitoring of tissue regeneration using a ratiometric lysosomal AIE probe

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

19 Scopus Citations
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Author(s)

  • Xiujuan Shi
  • Neng Yan
  • Guangle Niu
  • Simon H. P. Sung
  • Zhiyang Liu
  • Junkai Liu
  • Ryan T. K. Kwok
  • Jacky W. Y. Lam
  • Herman H.-Y. Sung
  • Ian D. Williams
  • Ben Zhong Tang

Detail(s)

Original languageEnglish
Pages (from-to)3152-3163
Journal / PublicationChemical Science
Volume11
Issue number12
Online published11 Feb 2020
Publication statusPublished - 28 Mar 2020

Link(s)

Abstract

Tissue regeneration is a crucial self-renewal capability involving many complex biological processes. Although transgenic techniques and fluorescence immunohistochemical staining have promoted our understanding of tissue regeneration, simultaneous quantification and visualization of tissue regeneration processes is not easy to achieve. Herein, we developed a simple and quantitative method for the real-time and non-invasive observation of the process of tissue regeneration. The synthesized ratiometric aggregation-induced-emission (AIE) probe exhibits high selectivity and reversibility for pH responses, good ability to map lysosomal pH both in vitro and in vivo, good biocompatibility and excellent photostability. The caudal fin regeneration of a fish model (medaka larvae) was monitored by tracking the lysosomal pH change. It was found that the mean lysosomal pH is reduced during 24-48 hpa to promote the autophagic activity for cell debris degradation. Our research can quantify the changes in mean lysosomal pH and also exhibit its distribution during the caudal fin regeneration. We believe that the AIE-active lysosomal pH probe can also be potentially used for long-term tracking of various lysosome-involved biological processes, such as tracking the stress responses of tissue, tracking the inflammatory responses, and so on.

Research Area(s)

Citation Format(s)

In vivo monitoring of tissue regeneration using a ratiometric lysosomal AIE probe. / Shi, Xiujuan; Yan, Neng; Niu, Guangle; Sung, Simon H. P.; Liu, Zhiyang; Liu, Junkai; Kwok, Ryan T. K.; Lam, Jacky W. Y.; Wang, Wen-Xiong; Sung, Herman H.-Y.; Williams, Ian D.; Tang, Ben Zhong.

In: Chemical Science, Vol. 11, No. 12, 28.03.2020, p. 3152-3163.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review