LIGHT delivery to tumors by mesenchymal stem cells mobilizes an effective antitumor immune response

Weibin Zou, Huilin Zheng, Tong Chuan He, Jinjia Chang, Yang Xin Fu, Weimin Fan

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Bone marrow-derived mesenchymal stem cells (MSC) have been shown to home into tumor tissues, where they promote tumor growth and suppress immune rejection. In this study, we tested whether MSCs engineered to express the immune stimulating factor LIGHT, a member of the TNF superfamily, could induce tumor regression. Using in vitro and in vivo migration assays, we found that LIGHT-expressing MSCs (MSC-L) displayed a strong tropism for tumor tissues. MSC-L treatment activated the LIGHT-signaling pathway, effectively organizing a potent antitumor immune response that stimulated an influx of T cells and inhibited tumor growth in vivo. CD4 T cells were found to play a role in the induction phase of the immune response, and CD8 T cells were shown to be essential for the effector phase. Together, our findings indicate that MSCs can effectively home into and deliver immune stimulating molecules to tumor tissues, thereby reversing the immune-suppressive environment, promoting antitumor immunity, and inhibiting tumor growth.

Original languageEnglish (US)
Pages (from-to)2980-2989
Number of pages10
JournalCancer Research
Volume72
Issue number12
DOIs
StatePublished - Jun 15 2012

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Neoplastic Stem Cells
Mesenchymal Stromal Cells
Light
Neoplasms
T-Lymphocytes
Growth
Tropism
Immunologic Factors
Immunity
Bone Marrow

ASJC Scopus subject areas

  • Cancer Research
  • Oncology

Cite this

LIGHT delivery to tumors by mesenchymal stem cells mobilizes an effective antitumor immune response. / Zou, Weibin; Zheng, Huilin; He, Tong Chuan; Chang, Jinjia; Fu, Yang Xin; Fan, Weimin.

In: Cancer Research, Vol. 72, No. 12, 15.06.2012, p. 2980-2989.

Research output: Contribution to journalArticle

Zou, Weibin ; Zheng, Huilin ; He, Tong Chuan ; Chang, Jinjia ; Fu, Yang Xin ; Fan, Weimin. / LIGHT delivery to tumors by mesenchymal stem cells mobilizes an effective antitumor immune response. In: Cancer Research. 2012 ; Vol. 72, No. 12. pp. 2980-2989.
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