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Article: Clinical significance and functional role of transmembrane protein 47 (TMEM47) in chemoresistance of hepatocellular carcinoma

TitleClinical significance and functional role of transmembrane protein 47 (TMEM47) in chemoresistance of hepatocellular carcinoma
Authors
KeywordsChemoresistance
Hepatocellular carcinoma
Response marker
Therapeutic target
Transmembrane protein 47
Issue Date2020
PublisherSpandidos Publications. The Journal's web site is located at http://www.spandidos-publications.com/ijo/
Citation
International Journal of Oncology, 2020, v. 57 n. 4, p. 956-966 How to Cite?
AbstractChemoresistance is the main cause of chemotherapy failure in patients with hepatocellular carcinoma (HCC). The gene encoding transmembrane protein 47 (TMEM47) was previously identified to be significantly upregulated in HCC cell lines with acquired chemoresistance. The aim of the present study was to characterize the clinical significance and function of TMEM47 in HCC chemoresistance. The results demonstrated that the TMEM47 expression levels in the tumors of patients not responding to cisplatin‑based transarterial chemoembolization (TACE) treatment was significantly higher compared with those in patients who responded to TACE treatment. Moreover, analyses from clinical samples and HCC cell lines indicated that TMEM47 expression may be upregulated in HCC in response to cisplatin treatment. Furthermore, the TMEM47 mRNA expression levels were positively correlated with the degree of cisplatin resistance of HCC cells. Overexpression of TMEM47 in HCC cells significantly promoted cisplatin resistance. The present study also demonstrated that targeted inhibition of TMEM47 could significantly reduce cisplatin resistance of cisplatin‑resistant HCC cells via enhancing caspase‑mediated apoptosis. In addition, targeted inhibition of TMEM47 enhanced the sensitivity of cisplatin‑resistant cells to cisplatin via suppressing cisplatin‑induced activation of the genes involved in drug efflux and metabolism. The present study also validated that TMEM47 expression was significantly correlated with multidrug resistance‑associated protein 1 in patients with HCC who received TACE treatment. In conclusion, the findings of the present study demonstrated that TMEM47 may be a useful biomarker for predicting the response to chemotherapy and a potential therapeutic target for overcoming HCC chemoresistance.
Persistent Identifierhttp://hdl.handle.net/10722/287308
ISSN
2019 Impact Factor: 3.899
2015 SCImago Journal Rankings: 1.270
PubMed Central ID

 

DC FieldValueLanguage
dc.contributor.authorNg, KTP-
dc.contributor.authorYeung, OWH-
dc.contributor.authorLiu, J-
dc.contributor.authorLi, C-
dc.contributor.authorLiu, H-
dc.contributor.authorLiu, X-
dc.contributor.authorQi, X-
dc.contributor.authorMa, YY-
dc.contributor.authorLam, YF-
dc.contributor.authorLau, MY-
dc.contributor.authorQIU, WQ-
dc.contributor.authorShiu, HC-
dc.contributor.authorLai, MK-
dc.contributor.authorLo, CM-
dc.contributor.authorMan, K-
dc.date.accessioned2020-09-22T02:59:01Z-
dc.date.available2020-09-22T02:59:01Z-
dc.date.issued2020-
dc.identifier.citationInternational Journal of Oncology, 2020, v. 57 n. 4, p. 956-966-
dc.identifier.issn1019-6439-
dc.identifier.urihttp://hdl.handle.net/10722/287308-
dc.description.abstractChemoresistance is the main cause of chemotherapy failure in patients with hepatocellular carcinoma (HCC). The gene encoding transmembrane protein 47 (TMEM47) was previously identified to be significantly upregulated in HCC cell lines with acquired chemoresistance. The aim of the present study was to characterize the clinical significance and function of TMEM47 in HCC chemoresistance. The results demonstrated that the TMEM47 expression levels in the tumors of patients not responding to cisplatin‑based transarterial chemoembolization (TACE) treatment was significantly higher compared with those in patients who responded to TACE treatment. Moreover, analyses from clinical samples and HCC cell lines indicated that TMEM47 expression may be upregulated in HCC in response to cisplatin treatment. Furthermore, the TMEM47 mRNA expression levels were positively correlated with the degree of cisplatin resistance of HCC cells. Overexpression of TMEM47 in HCC cells significantly promoted cisplatin resistance. The present study also demonstrated that targeted inhibition of TMEM47 could significantly reduce cisplatin resistance of cisplatin‑resistant HCC cells via enhancing caspase‑mediated apoptosis. In addition, targeted inhibition of TMEM47 enhanced the sensitivity of cisplatin‑resistant cells to cisplatin via suppressing cisplatin‑induced activation of the genes involved in drug efflux and metabolism. The present study also validated that TMEM47 expression was significantly correlated with multidrug resistance‑associated protein 1 in patients with HCC who received TACE treatment. In conclusion, the findings of the present study demonstrated that TMEM47 may be a useful biomarker for predicting the response to chemotherapy and a potential therapeutic target for overcoming HCC chemoresistance.-
dc.languageeng-
dc.publisherSpandidos Publications. The Journal's web site is located at http://www.spandidos-publications.com/ijo/-
dc.relation.ispartofInternational Journal of Oncology-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectChemoresistance-
dc.subjectHepatocellular carcinoma-
dc.subjectResponse marker-
dc.subjectTherapeutic target-
dc.subjectTransmembrane protein 47-
dc.titleClinical significance and functional role of transmembrane protein 47 (TMEM47) in chemoresistance of hepatocellular carcinoma-
dc.typeArticle-
dc.identifier.emailNg, KTP: ledodes@hku.hk-
dc.identifier.emailYeung, OWH: why21@hku.hk-
dc.identifier.emailLiu, H: liuhui25@hku.hk-
dc.identifier.emailLiu, X: liuxb301@hku.hk-
dc.identifier.emailShiu, HC: hoicshiu@hku.hk-
dc.identifier.emailLai, MK: dl001032@hku.hk-
dc.identifier.emailLo, CM: chungmlo@hkucc.hku.hk-
dc.identifier.emailMan, K: kwanman@hku.hk-
dc.identifier.authorityNg, KTP=rp01720-
dc.identifier.authorityLo, CM=rp00412-
dc.identifier.authorityMan, K=rp00417-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.3892/ijo.2020.5104-
dc.identifier.pmid32945373-
dc.identifier.pmcidPMC7473756-
dc.identifier.scopuseid_2-s2.0-85090480638-
dc.identifier.hkuros314193-
dc.identifier.volume57-
dc.identifier.issue4-
dc.identifier.spage956-
dc.identifier.epage966-
dc.publisher.placeGreece-

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