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LncRNA expression profile is associated with neoadjuvant chemotherapy resistance in luminal B breast cancer

ABSTRACT: LncRNA expression profile is associated with neoadjuvant chemotherapy resistance in luminal B breast cancer

PROVIDER: PRJNA1129126 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR29632300_1.fastq.gz	Fastqsanger.gz
	SRR29632300_2.fastq.gz	Fastqsanger.gz
	SRR29632302_1.fastq.gz	Fastqsanger.gz
	SRR29632302_2.fastq.gz	Fastqsanger.gz
	SRR29632306_1.fastq.gz	Fastqsanger.gz

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LncRNA expression profile is associated with neoadjuvant chemotherapy resistance in luminal B breast cancer

Project description:Purpose: Identified the expression profile of lncRNAs associated to neoadjuvant chemotherapy response in 47 luminal B tumors of locally advanced breast cancer patients Methods: We implemented the transcriptomic analysis from 47 luminal B breast cancer samples by paired-end RNA-Seq, as a case-control study (responders vs nonresponders group). Differential expression analysis for lncRNA and mRNA were made to identify lncRNA as predictive biomarkers. Results: We identified a signature of lncRNAs associated with nonresponders group. Additionally, we identified the pathways were differentially expressed lncRNA and mRNA are associated in neoadjuvant chemotherapy response. Additionally, we proposed the clinical application of lncRNA GATA3-AS1 as a predictive biomarker to neoadjuvant chemotherapy response in luminal B breast cancer patients detected by RNA-ISH. Conclusion: we propose the clinical utility of lncRNA GATA3-AS1 detected by RNA-ISH to identify luminal B breast cancer patients that will not respond to neoadjuvant chemotherapy.

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Project description:Purpose: Identified the expression profile of lncRNA associated to neoadjuvant chemotherapy response in 11 tumor of locally advanced breast cancer patients Methods: We implemented the transcriptomic analysis from 11 breast cancer samples by paired-end RNA-Seq, as a case-control study (responders vs nonresponders group). Differential expression analysis for lncRNA and mRNA were made to identify lncRNA as predictive biomarkers. Results: We identified the over-expressed lncRNA GATA3-AS1 in nonresponders group. Additionally, we identified the pathways were differentially expressed lncRNA and mRNA are associated in neoadjuvant chemotherapy response. Conclusion: we propose lncRNA GATA3-AS1 as a potential predictive biomarker for patients with LABC luminal B-like subtype that will not respond to neoadjuvant chemotherapy

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Project description:For patients with muscle-invasive bladder cancer, there are no biomarkers in clinical use that can identify patients that are sensitive or resistant to neoadjuvant chemotherapy. This study investigates how molecular subtypes impact pathological response and survival in 149 patients receiving preoperative cis-platin based chemotherapy by tumor classification using transcriptomic profiling and a 13-marker immunostaining panel. Furthermore, we explored to what extent gene expression signatures can predict chemotherapy response beyond molecular subtypes. We observed improved pathological response rates and survival outcomes for patients presenting with genomically unstable (GU) and urothelial-like (Uro) subtypes compared to the basal-squamous (BASQ) subtype following neoadjuvant chemotherapy and radical cystectomy. Also, SPP1, coding for osteopontin, displayed a clear subtype-dependent effect on chemotherapy response, confirmed at the protein level. Based on our findings, we hypothesize that urothelial cancer of the luminal-like GU- and Uro-subtypes are more responsive to cisplatin-based chemotherapy which may influence patient selection pending further research.

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