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Yan S, Xue H, Zhang P, Han X, Guo X, Yuan G, Deng L, Li G. MMP inhibitor Ilomastat induced amoeboid-like motility via activation of the Rho signaling pathway in glioblastoma cells. Tumour Biol 2016; 37:10.1007/s13277-016-5464-5. [PMID: 27743382 DOI: 10.1007/s13277-016-5464-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 09/23/2016] [Indexed: 12/29/2022] Open
Abstract
Matrix metalloproteinases (MMPs) play the important role in the process of glioblastoma cell invasion through 3D matrices. However, the effects of MMP inhibitors used in the treatment of malignant gliomas are unsatisfactory. The aim of this study was to explore the reason and mechanism by which cells move through the dense extracellular matrix without proteolysis. The results showed that MMP inhibitor (MMPI), Ilomastat, induced glioma cells to have an amoeboid-like morphology with invasive ability. Moreover, the RhoA/Rho kinase (ROCK)/myosin light chain (MLC) signal is involved in the MMPI-induced movement mode switch, and RhoA activation is dependent on P115RhoGEF. Importantly, combined inhibition of MMPs and ROCK enhanced the inhibition invasion function of MMPI and increased survival time in vitro and in vivo. The results suggested that glioma cells with MMPI treatment were able to compensate for the loss of invasive proteolysis-dependent migration capacity by acquiring an amoeboid-like migration mode and indicated that the combined MMP inhibitor and ROCK inhibitor can be used as an attractive antitumor drug candidate for the treatment of GBM.
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Affiliation(s)
- Shaofeng Yan
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
- Department of Neurosurgery, Qilu Hospital of Shandong University, 107 Wenhua Western Road, Jinan,, Shandong, 25001, China
| | - Hao Xue
- Department of Neurosurgery, Qilu Hospital of Shandong University, 107 Wenhua Western Road, Jinan,, Shandong, 25001, China
| | - Ping Zhang
- Department of Neurosurgery, Qilu Hospital of Shandong University, 107 Wenhua Western Road, Jinan,, Shandong, 25001, China
| | - Xiao Han
- Department of Neurosurgery, Qilu Hospital of Shandong University, 107 Wenhua Western Road, Jinan,, Shandong, 25001, China
| | - Xing Guo
- Department of Neurosurgery, Qilu Hospital of Shandong University, 107 Wenhua Western Road, Jinan,, Shandong, 25001, China
| | - Guang Yuan
- Department of Neurosurgery, Zibo Zhong Xin Hospital, Shandong Province, Zibo, China
| | - Lin Deng
- Department of Neurosurgery, Qilu Hospital of Shandong University, 107 Wenhua Western Road, Jinan,, Shandong, 25001, China.
| | - Gang Li
- Department of Neurosurgery, Qilu Hospital of Shandong University, 107 Wenhua Western Road, Jinan,, Shandong, 25001, China.
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Abstract
AIM: To evaluate the protective effects of ilomastat, an exogenous matrix metalloproteinase (MMP) inhibitor, on trinitrobenzenesulfonic acid (TNB)-induced ulcerative colitis (UC) in rats.
METHODS: Male SD rats were randomly divided into model group, protective groups A and B, and normal control group. Rats in the model group received only intra-colonic TNB. Rats in the protective groups A and B received intra-peritoneal ilomastat of 10 mg/kg and 20 mg/kg, respectively, beside TNB. Rats in the normal control group received only intra-colonic normal saline. After 3 wk, segments of colon were obtained. RT-PCR and immunohistochemistry were used to examine the expression of MMP-1 and TIMP-1. Hematoxylin-eosin (HE) staining was used for pathological study.
RESULTS: The model of UC was successfully induced in rats. Inflammation of colonic mucosa greatly improved in protective groups A and B. Expression of MMP-1 and TIMP-1 in the model group, protective groups A and B was significantly higher than that in the normal control group (P < 0.0001) with MMP-1 expression increased more significantly than TIMP-1 expression. Expression of MMP-1 in protective groups A and B was significantly lower than that in the model group (P < 0.0001) . Expression of MMP-1 in protective group B was significantly lower than that in protective group A (P < 0.0001).
CONCLUSION: Ilomastat improves TNB-induced UC in rats by inhibiting the MMP-1 activity.
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