Polyamine synthesis enzyme AMD1 is closely associated with tumorigenesis and prognosis of human gastric cancers.

A new interesting article has been published in Carcinogenesis. 2019 May 29. pii: bgz098. doi: 10.1093/carcin/bgz098. and titled:

Polyamine synthesis enzyme AMD1 is closely associated with tumorigenesis and prognosis of human gastric cancers.

Authors of this article are:

Xu L, You X, Cao Q, Huang M, Hong LL, Chen XL, Lei L, Ling ZQ, Chen Y.

A summary of the article is shown below:

Adenosylmethionine decarboxylase 1 (AMD1) is a key enzyme involved in biosynthesis of polyamines includingspermidine and spermine. The potential function of AMD1 in human gastric cancers is unknown. We analyzed AMD1 expression level in 319 human gastric cancers samples together with the adjacent normal tissues. The protein expression level of AMD1 was significantly increased in human gastric cancer samples compared with their corresponding para-cancerous histological normal tissues (P<0.0001). The expression level of AMD1 was positively associated with Helicobactor pylori 16sRNA (P<0.0001), tumor size (P<0.0001), tumor differentiation (P<0.05), tumor venous invasion (P<0.0001), tumor lymphatic invasion (P<0.0001), blood vessel invasion (P<0.0001), and TNM stage (P<0.0001). Patients with high expression of AMD1 had a much shorter overall survival than those with normal/low expression of AMD1. Knockdown of AMD1 in human gastric cancer cells suppressed cell proliferation, colony formation and cell migration. In a tumor xenograft model, knockdown of AMD1 suppressed the tumor growth in vivo. Inhibition of AMD1 by an inhibitor SAM486A in human gastric cancer cells arrested cell cycle progression during G1-to-S transition. Collectively, our studies at the cellular, animal and human levels indicate that AMD1 has a tumorigenic effect on human gastric cancers and affect the prognosis of the patients.© The Author(s) 2019. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.
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This article is a good source of information and a good way to become familiar with topics such as: AMD1; Polyamine; cell cycle; gastric cancer; metastasis; prognosis.