Inflammation-Related Immune-Modulatory SLURP1 Prevents the Proliferation of Human Colon Cancer Cells, and Its Delivery by Salmonella Demonstrates Cross-Species Efficacy against Murine Colon Cancer

被引：4

作者：

Senevirathne, Amal ^{[1
]}

Aganja, Ram Prasad ^{[1
,2
]}

Hewawaduge, Chamith ^{[1
]}

Lee, John Hwa ^{[1
]}

机构：

[1] Jeonbuk Natl Univ, Coll Vet Med, Iksan 54596, South Korea

[2] Jeonbuk Natl Univ, Inst Anim Transplantat, Iksan Campus, Iksan 54596, South Korea

来源：

PHARMACEUTICS | 2023年 / 15卷 / 10期

基金：

新加坡国家研究基金会;

关键词：

alpha; 7-nAChR; SLURP1; colorectal cancer; receptor inhibitor; cell cycle; Salmonella; NICOTINIC ACETYLCHOLINE-RECEPTORS; TOBACCO-DERIVED NITROSAMINES; IONIC EVENTS; EXPRESSION; SYSTEM; ACTIVATION; RESPONSES; GENE; OVEREXPRESSION; INHIBITION;

D O I：

10.3390/pharmaceutics15102462

中图分类号：

R9 [药学];

学科分类号：

1007 ;

摘要：

This study investigates the anticancer properties of the alpha 7-nAChR antagonist SLURP1 with a specific focus on its effect as an inflammation modulator on human colorectal cancer cell lines Caco2, Colo320DM, and H508 cells. The investigation includes the evaluation of cell cycle arrest, cell migration arrest, endogenous expression of SLURP1 and related proteins, calcium influx, and inflammatory responses. The results demonstrate that SLURP1 not only inhibits cell proliferation but also has the potential to arrest the cell cycle at the G1/S interface. The impact of SLURP1 on cell cycle regulation varied among cell lines, with H508 cells displaying the strongest response to exogenous SLURP1. Additionally, SLURP1 affects the nuclear factor kappa B expression and effectively reverses inflammatory responses elicited by purified lipopolysaccharides in H508 and Caco2 cells. This study further confirmed the expression of human SLURP1 by Salmonella, under Ptrc promoter, through Western blot analysis. Moreover, Salmonella secreting SLURP1 revealed a significant tumor regression in a mouse CT26 tumor model, suggesting the cross-species anticancer potential of human SLURP1. However, further investigations are required to fully understand the mechanisms underlying SLURP1's ability to prevent cancer proliferation and its protective function in humans.

引用

页数：18