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RNA Interference Toward MMP-2 May Be An Effective Therapeutic Strategy For Cancer

Date:
March 9, 2009
Source:
World Journal of Gastroenterology
Summary:
Pancreatic cancer is one of the most aggressive common tumors with an extremely poor prognosis. Matrix metalloproteinase-2can degrade type IV collagen and is associated with invasion angiogenesis of pancreatic cancer. As a kind of high efficient, specificity and relatively stable tool, RNA interference technology has already been used to silence specific target gene expression. Thus, RNA interference towards MMP-2 may be an effective therapeutic strategy for patients with pancreatic cancer.

The invasion or metastasis of pancreatic cancer has been known to be a complex process involving many molecular mechanisms, of which proteolytic degradation of extracellular matrix (ECM) exerted by matrix metalloproteinases (MMPs) was considered to be an essential step.

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Some data suggest that MMP-2 is involved in pancreatic cancer invasion and metastasis, and a high level of MMP-2 has been found to correlate with poor prognosis in patients with pancreatic cancer. Therefore, inhibition of MMP-2 may be of great value in both preventing pancreatic cancer and blocking metastasis of established tumors.

A study will be published on March 7, 2009 address the question. The research team led by Professor Song from Department of General Surgery, Affiliated Beijing Tiantan Hospital, Capital Medical University utilized RNA interference system by using the vector (pGPU6)to specifically knock down MMP-2 expression in pancreatic cancer cell. MMP-2 expression was measured by reverse transcription polymerase chain reaction (RT-PCR) and Western blot. Cell proliferation, apoptosis were examined by MTT, flow cytometry, respectively. The abilities of adhesion and invasion were detected by cell adhesion assay and cell invasion assay using Transwell chambers.

Data provide evidence that RNA interference against MMP-2 successfully inhibited the mRNA and protein expression of MMP-2 in the pancreatic cancer cells line Bxpc-3, leading to a potent suppression of tumor cells adhesion and invasion without affecting cells proliferation and apoptosis. These findings suggest that RNA interference towards MMP-2 may be an effective therapeutic strategy for the clinical management of pancreatic tumor. Although the leap to clinical practice remains elusive, gene therapy targeting MMP-2 is attractive and warrants further investigation.


Story Source:

The above story is based on materials provided by World Journal of Gastroenterology. Note: Materials may be edited for content and length.


Journal References:

  1. Zhi et al. Suppression of matrix metalloproteinase-2 бvia RNA interference inhibits pancreatic carcinoma cell invasiveness and adhesion. World Journal of Gastroenterology, 2009; 15 (9): 1072 DOI: 10.3748/wjg.15.1072
  2. Zhi et al. Suppression of matrix metalloproteinase-2 via RNA interference inhibits pancreatic carcinoma cell invasiveness and adhesion. World Journal of Gastroenterology, 2009; 15 (9): 1072 DOI: 10.3748/wjg.15.1072

Cite This Page:

World Journal of Gastroenterology. "RNA Interference Toward MMP-2 May Be An Effective Therapeutic Strategy For Cancer." ScienceDaily. ScienceDaily, 9 March 2009. <www.sciencedaily.com/releases/2009/03/090309093042.htm>.
World Journal of Gastroenterology. (2009, March 9). RNA Interference Toward MMP-2 May Be An Effective Therapeutic Strategy For Cancer. ScienceDaily. Retrieved November 24, 2014 from www.sciencedaily.com/releases/2009/03/090309093042.htm
World Journal of Gastroenterology. "RNA Interference Toward MMP-2 May Be An Effective Therapeutic Strategy For Cancer." ScienceDaily. www.sciencedaily.com/releases/2009/03/090309093042.htm (accessed November 24, 2014).

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