» Articles » PMID: 39663860

Antitumor Host Immunity Enhanced by Near-infrared Photoimmunotherapy

Overview
Journal Cancer Sci
Specialty Oncology
Date 2024 Dec 12
PMID 39663860
Authors
Affiliations
Soon will be listed here.
Abstract

Near-infrared photoimmunotherapy (NIR-PIT) is a novel antitumor therapy that selectively kills cancer cells by NIR light-triggered photochemical reaction of IRDye700DX within Ab-photoabsorber conjugates (APCs). NIR-PIT induces immunogenic cell death, causing immune cell migration between the tumor and tumor-draining lymph nodes, and expanding multiclonal tumor-infiltrating CD8 T cells. Crucially, the cytotoxic effects of NIR-PIT are limited to cancer cells, sparing immune cells such as antigen-presenting cells and T cells, which are key players in boosting antitumor host immunity. By modifying the Ab used in APC synthesis, NIR-PIT can be repurposed to target and deplete noncancerous immunosuppressive cells including regulatory T cells, myeloid-derived suppressor cells, and cancer-associated fibroblasts in the tumor microenvironment. Immunosuppressive cell targeted NIR-PIT strongly potentiates antitumor host immunity, including the induction of abscopal effects and the development of immune memory. Furthermore, antitumor immune responses and therapeutic efficacy are synergistically enhanced when NIR-PIT is combined with other immune-activating treatments, such as interleukin-15 and immune checkpoint inhibitors. These new findings make NIR-PIT a valuable tool in the evolving landscape of cancer immunotherapy. This review explains the role of NIR-PIT in activating antitumor host immunity.

Citing Articles

Photodynamic Therapy in Cancer: Insights into Cellular and Molecular Pathways.

Papa V, Furci F, Minciullo P, Casciaro M, Allegra A, Gangemi S Curr Issues Mol Biol. 2025; 47(2).

PMID: 39996790 PMC: 11854756. DOI: 10.3390/cimb47020069.


Antitumor host immunity enhanced by near-infrared photoimmunotherapy.

Fukushima H, Furusawa A, Okada R, Fujii Y, Choyke P, Kobayashi H Cancer Sci. 2024; 116(3):572-580.

PMID: 39663860 PMC: 11875768. DOI: 10.1111/cas.16427.

References
1.
Waldmann T, Miljkovic M, Conlon K . Interleukin-15 (dys)regulation of lymphoid homeostasis: Implications for therapy of autoimmunity and cancer. J Exp Med. 2019; 217(1). PMC: 7037239. DOI: 10.1084/jem.20191062. View

2.
Fukushima H, Furusawa A, Kato T, Wakiyama H, Takao S, Okuyama S . Intratumoral IL15 Improves Efficacy of Near-Infrared Photoimmunotherapy. Mol Cancer Ther. 2023; 22(10):1215-1227. PMC: 10592297. DOI: 10.1158/1535-7163.MCT-23-0210. View

3.
Ali H, Provenzano E, Dawson S, Blows F, Liu B, Shah M . Association between CD8+ T-cell infiltration and breast cancer survival in 12,439 patients. Ann Oncol. 2014; 25(8):1536-43. DOI: 10.1093/annonc/mdu191. View

4.
Shan F, Somasundaram A, Bruno T, Workman C, Vignali D . Therapeutic targeting of regulatory T cells in cancer. Trends Cancer. 2022; 8(11):944-961. PMC: 9588644. DOI: 10.1016/j.trecan.2022.06.008. View

5.
Okada R, Maruoka Y, Furusawa A, Inagaki F, Nagaya T, Fujimura D . The Effect of Antibody Fragments on CD25 Targeted Regulatory T Cell Near-Infrared Photoimmunotherapy. Bioconjug Chem. 2019; 30(10):2624-2633. PMC: 7413076. DOI: 10.1021/acs.bioconjchem.9b00547. View