2018
DOI: 10.1016/j.celrep.2018.02.028
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PHLDA1 Mediates Drug Resistance in Receptor Tyrosine Kinase-Driven Cancer

Abstract: SummaryDevelopment of resistance causes failure of drugs targeting receptor tyrosine kinase (RTK) networks and represents a critical challenge for precision medicine. Here, we show that PHLDA1 downregulation is critical to acquisition and maintenance of drug resistance in RTK-driven cancer. Using fibroblast growth factor receptor (FGFR) inhibition in endometrial cancer cells, we identify an Akt-driven compensatory mechanism underpinned by downregulation of PHLDA1. We demonstrate broad clinical relevance of our… Show more

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Cited by 42 publications
(52 citation statements)
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“…Reduced expression of PHLDA1 has been reported in melanoma, breast carcinoma, oral carcinoma, and gastric adenocarcinoma, and lower expression of PHLDA1 is associated with the malignant phenotype of cholangiocarcinoma . It has also been reported that PHLDA1 is involved in the repression of growth factor signaling . Although these reports suggest that PHLDA1 can function as a tumor suppressor, its precise molecular activity remains unknown.…”
Section: Introductionmentioning
confidence: 99%
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“…Reduced expression of PHLDA1 has been reported in melanoma, breast carcinoma, oral carcinoma, and gastric adenocarcinoma, and lower expression of PHLDA1 is associated with the malignant phenotype of cholangiocarcinoma . It has also been reported that PHLDA1 is involved in the repression of growth factor signaling . Although these reports suggest that PHLDA1 can function as a tumor suppressor, its precise molecular activity remains unknown.…”
Section: Introductionmentioning
confidence: 99%
“…[13][14][15][16][17][18] It has also been reported that PHLDA1 is involved in the repression of growth factor signaling. 19,20 Although these reports suggest that PHLDA1 can function as a tumor suppressor, its precise molecular activity remains unknown.…”
Section: Introductionmentioning
confidence: 99%
“…A capacidade dos domínios PHL de se ancorar transitoriamente na superfície da membrana intracelular e participar de múltiplos processos de transdução de sinais, têm sido alvo de muitos estudos (JIANG et al, 2015;SCHEFFZEK;WELTI, 2012). Alguns trabalhos tem demonstrado que proteínas com o domínio funcional PHL podem suprimir a atividade de AKT (serine/threonine kinase 1) pela interferência direta na ligação desta oncoproteína aos fosfotidilinositol, inibindo sua fosforilação e, consequentemente, ativação de vias de proliferação e sobrevivência celular (DAI et al, 2012;FEARON et al, 2018;KAWASE et al, 2009). A desregulação da via AKT tem sido implicada em uma variedade de canceres humanos e a identificação de potenciais inibidores desta via tem sido considerado uma estratégia promissora para tratamentos anti-câncer (PARIKH et al, 2012; SHARIATI; MERIC-BERNSTAM, 2019).…”
Section: Membros Da Família Phlda (Pleckstrin Homology-like Domain Faunclassified
“…Agentes indutores de estresse celular, como aqueles provocados pelo choque térmico, estresse oxidativo e estresse do retículo endoplasmático, são capazes de induzir a expressão de PHLDA1 em diferentes tipos celulares (HAYASHIDA et al, 2006;HOSSAIN et al, 2003;JANUS et al, 2020;JOO et al, 2007;PARK et al, 2013), podendo levar a mudanças morfológicas, diminuição de adesão celular e promoção de anoikis, e que ainda sua expressão pode ser regulada positivamente por IGF-1 (insulin-like growth factors 1) (TOYOSHIMA et al, 2004;WU et al, 2010), pela via ERK (extracellular-signal-regulated kinase) (LYU et al, 2016;OBERST et al, 2008), pela quinase HER2 (FEARON et al, 2018;LI et al, 2014a;MAGI et al, 2018), pelo estrogênio via ER (KASTRATI; CANESTRARI; FRASOR, 2015; MARCHIORI; CASOLARI; NAGAI, 2008) e por p53 (CHEN et al, 2018). O PHLDA1 tem sido reportado por inibir síntese de certas proteínas e possivelmente exerce um papel na tradução proteica (HINZ et al, 2001;OBERG et al, 2004).…”
Section: Phlda1: Papel Biológico E Relação Com O Câncer De Mamaunclassified
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