Combination treatment of T1-44, a PRMT5 inhibitor with Vactosertib, an inhibitor of TGF-β signaling, inhibits invasion and prolongs survival in a mouse model of pancreatic tumors

被引：19

作者：

Hong, Eunji ^{[1
,2
]}

Barczak, Wojciech ^{[3
]}

Park, Sujin ^{[1
]}

Heo, Jin Sun ^{[1
]}

Ooshima, Akira ^{[1
]}

Munro, Shonagh ^{[4
]}

Hong, Chang Pyo ^{[5
]}

Park, Jinah ^{[1
]}

An, Haein ^{[1
,2
]}

Park, Joon Oh ^{[6
]}

Park, Seok Hee ^{[2
]}

La Thangue, Nick B. ^{[3
]}

Kim, Seong-Jin ^{[1
,7
]}

机构：

[1] GILO Fdn, GILO Inst, Seoul, South Korea

[2] Sungkyunkwan Univ, Dept Biol Sci, Suwon, Gyeonggi Do, South Korea

[3] Univ Oxford, Dept Oncol, Lab Canc Biol, Old Rd Campus Res Bldg,Old Rd Campus, Oxford, Oxon, England

[4] Argonaut Therapeut Ltd, Magdalen Ctr, Oxford Sci Pk, Oxford, Oxon, England

[5] Theragen Bio Co Ltd, Seongnam, South Korea

[6] Sungkyunkwan Univ, Samsung Med Ctr, Dept Med, Sch Med, Seoul, South Korea

[7] Medpacto Inc, Seoul, South Korea

来源：

CELL DEATH & DISEASE | 2023年 / 14卷 / 02期

关键词：

CANCER; METHYLATION; GROWTH; HISTONE; MICROENVIRONMENT; HETEROGENEITY; DIAGNOSIS; THERAPY; TARGET;

D O I：

10.1038/s41419-023-05630-5

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

Pancreatic ductal adenocarcinoma (PDAC) is the most lethal type of cancer and the third leading cause of cancer death with the lowest 5-year survival rate. Heterogeneity, difficulty in diagnosis, and rapid metastatic progression are the causes of high mortality in pancreatic cancer. Recent studies have shown that Protein arginine methyltransferase 5 (PRMT5) is overexpressed in pancreatic cancers, and these patients have a worse prognosis. Recently, PRMT5 as an anti-cancer target has gained considerable interest. In this study, we investigated whether inhibition of PRMT5 activity was synergistic with blockade of TGF-beta 1 signaling, which plays an important role in the construction of the desmoplastic matrix in pancreatic cancer and induces therapeutic vulnerability. Compared with T1-44, a selective inhibitor of PRMT5 activity, the combination of T1-44 with the TGF-beta 1 signaling inhibitor Vactosertib significantly reduced tumor size and surrounding tissue invasion and significantly improved long-term survival. RNA sequencing analysis of mouse tumors revealed that the combination of T1-44 and Vactosertib significantly altered the expression of genes involved in cancer progression, such as cell migration, extracellular matrix, and apoptotic processes. In particular, the expression of Btg2, known as a tumor suppressor factor in various cancers, was markedly induced by combination treatment. Ectopic overexpression of Btg2 inhibited the EMT response, blocking cell migration, and promoted cancer cell death. These data demonstrate that the combination therapy of T1-44 with Vactosertib is synergistic for pancreatic cancer, suggesting that this novel combination therapy has value in the treatment strategy of patients with pancreatic cancer.

引用

页数：9

共 69 条

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