A purine nucleotide biosynthesis enzyme guanosine monophosphate reductase is a suppressor of melanoma invasion.
A purine nucleotide biosynthesis enzyme guanosine monophosphate reductase is a suppressor of melanoma invasion.
复制标题
DOI:
10.1016/j.celrep.2013.09.015
复制
发表时间:
2013-10-31
期刊:
影响因子:
8.8
通讯作者:
Nikiforov MA
中科院分区:
文献类型:
--
作者:
Wawrzyniak JA;Bianchi-Smiraglia A;Bshara W;Mannava S;Ackroyd J;Bagati A;Omilian AR;Im M;Fedtsova N;Miecznikowski JC;Moparthy KC;Zucker SN;Zhu Q;Kozlova NI;Berman AE;Hoek KS;Gudkov AV;Shewach DS;Morrison CD;Nikiforov MA
Melanoma is one of the most aggressive types of human cancers, and the mechanisms underlying melanoma invasive phenotype are not completely understood. Here, we report that expression of guanosine monophosphate reductase (GMPR), an enzyme involved in de novo biosynthesis of purine nucleotides, was down-regulated in invasive stages of human melanoma. Loss- and gain-of-function experiments revealed that GMPR down-regulates the amounts of several GTP-bound (active) RHO-GTPases, suppresses the ability of melanoma cells to form invadopodia, degrade extracellular matrix and invade in vitro and grow as tumor xenografts in vivo. Mechanistically, we demonstrated that GMPR partially depletes intracellular GTP pools. Pharmacological inhibition of de novo GTP biosynthesis suppressed, whereas addition of exogenous guanosine increased invasion of melanoma cells as well as cells from other cancer types. Our data identified GMPR as a melanoma invasion suppressor, and established a link between guanosine metabolism and RHO-GTPase-dependent melanoma cell invasion.
登录
查看更多内容
影响因子:
4.8
作者:
Kennedy, HJ;Pouli, AE;Rutter, GA
通讯作者:
Rutter, GA
影响因子:
3.7
作者:
Liu YC;Li F;Handler J;Huang CR;Xiang Y;Neretti N;Sedivy JM;Zeller KI;Dang CV
通讯作者:
Dang CV
DOI:
10.1111/j.1600-0749.2006.00322.x
发表时间:
2006-08-01
期刊:
PIGMENT CELL RESEARCH
影响因子:
--
作者:
Hoek, Keith S.;Schlegel, Natalie C.;Dummer, Reinhard
通讯作者:
Dummer, Reinhard
影响因子:
64.5
作者:
Hotary, KB;Allen, ED;Weiss, SJ
通讯作者:
Weiss, SJ
影响因子:
45.3
作者:
Balch, Charles M.;Gershenwald, Jeffrey E.;Sondak, Vernon K.
通讯作者:
Sondak, Vernon K.