2016
DOI: 10.1134/s0026893316020138
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Abnormal expression of genes that regulate retinoid metabolism and signaling in non-small-cell lung cancer

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Cited by 12 publications
(14 citation statements)
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“…The same authors also correlated the decreased expression of ADH1B and ADH1C with advanced stages of colorectal carcinomas, overall indicating that dysregulation of the ATRA biosynthesis can be responsible of the cancer progression [83]. Similarly, in a later research, a different expression of genes involved in the retinoid's metabolism was found between 44 NSCLC tumor tissues and paired normal tissues [84]. Indeed, the authors recorded a dramatic decrease in mRNA levels of genes involved in the retinol oxidation to retinal (ADH1B, ADH3, RDHL), and in the conversion of retinal to ATRA (RALDH1), with an increased expression of AKR1B10 that converts retinal to retinol, indicating that in the resistant lung tumor tissue all the pathways concur to decrease ATRA concentrations [84].…”
Section: Metabolic Enzymesmentioning
confidence: 77%
See 1 more Smart Citation
“…The same authors also correlated the decreased expression of ADH1B and ADH1C with advanced stages of colorectal carcinomas, overall indicating that dysregulation of the ATRA biosynthesis can be responsible of the cancer progression [83]. Similarly, in a later research, a different expression of genes involved in the retinoid's metabolism was found between 44 NSCLC tumor tissues and paired normal tissues [84]. Indeed, the authors recorded a dramatic decrease in mRNA levels of genes involved in the retinol oxidation to retinal (ADH1B, ADH3, RDHL), and in the conversion of retinal to ATRA (RALDH1), with an increased expression of AKR1B10 that converts retinal to retinol, indicating that in the resistant lung tumor tissue all the pathways concur to decrease ATRA concentrations [84].…”
Section: Metabolic Enzymesmentioning
confidence: 77%
“…Moreover, as RARβ, also RARα was defined as tumor suppressor silenced by extensive cytosine methylation in the promoter responsible of RARα under-expression in MCF-7 cell line, and probably in the dysregulation of ATRA signaling [185]. In a lung cancer key research, a different expression of genes involved in the retinoid metabolism was found between 44 NSCLC tumor tissues and paired normal tissues [84]. The authors found that the mRNA levels of the nuclear receptor genes RXRγ, RARα, RXRα were significantly decreased in 80%, 65%, and 57% of tumor specimens, respectively, even at early stages.…”
Section: Other Rars and Rxrs Defectsmentioning
confidence: 99%
“…As possible explanation, it has been reported that genes related to retinoid biosynthesis, transport, degradation and signaling are deregulated in most NSCLC [47], possibly explaining at least in part those contradictory results. In particular, retinol is transformed in retinal through many enzymes, all of which may be inactivated or non-functioning [47]. Finally, we showed that RARα expression was decreased and RARβ increased in CRBP-1 + where compared to empty-transfected H460 cells.…”
Section: Discussionmentioning
confidence: 99%
“…A greater and significant downregulation of pAKT, pERK and pEGFR in CRBP-1 + compared to empty-transfected H460 cells was documented after 48 h of 5 µM at RA treatment, but not after retinol treatment. As possible explanation, it has been reported that genes related to retinoid biosynthesis, transport, degradation and signaling are deregulated in most NSCLC [ 47 ], possibly explaining at least in part those contradictory results. In particular, retinol is transformed in retinal through many enzymes, all of which may be inactivated or non-functioning [ 47 ].…”
Section: Discussionmentioning
confidence: 99%
“…5 13 Both SOX-2 and TTF-1(NK2X-1 ) genes are associated with tumour plasticity 14 and a decrease in expression of genes that regulate retinoid metabolism and signalling, including RALDH1, has also been reported in non-small cell lung cancers. 15 Although most cancers associated with type 1 CPAMs are mucinous adenocarcinomas 5 13 and therefore negative for TTF-1, persistence of SOX-2 expression and loss of RALDH1 in the epithelial cells may have some bearing on tumour development and warrant further study.…”
Section: Discussionmentioning
confidence: 99%