RNA sequencing revealed the multi-stage transcriptome transformations during the development of gallbladder cancer associated with chronic inflammation

• Published in: PloS one 2023-03, Vol.18 (3), p.e0283770-e0283770
• Main Authors: Yang, Sen, Qin, Litao, Wu, Pan, Liu, Yanbing, Zhang, Yanling, Mao, Bing, Yan, Yiyang, Yan, Shuai, Tan, Feilong, Yue, Xueliang, Liu, Hongshan, Xue, Huanzhou
• Format: Article
• Language: English
• Subjects: Abnormalities; Analysis; Biology and life sciences; Calculi; Cancer; Cancer therapies; Carcinogenesis; Carcinogens; Cell Line, Tumor; Cell migration; Cluster analysis; Comparative analysis; Consent; Data analysis; Data collection; Development and progression; Diagnosis; Evolution; Experiments; Gallbladder; Gallbladder cancer; Gallbladder diseases; Gallbladder Neoplasms - pathology; Gallstones; Gene expression; Gene sequencing; Genetic aspects; Genomes; Genomics; Humans; Inflammation; Inflammation - genetics; Instrument industry; Lipid metabolism; Lipids; Medical prognosis; Medicine and Health Sciences; Membrane proteins; Metabolism; Non-coding RNA; Prognosis; Quality control; Research and analysis methods; RNA; RNA sequencing; RNA, Long Noncoding - genetics; Sequence Analysis, RNA; Sex hormones; Transcriptome; Transcriptomes; Tumors
• ISSN: 1932-6203; 1932-6203
• DOI: 10.1371/journal.pone.0283770

Gallbladder cancer (GBC) is a highly malignant tumor with extremely poor prognosis. Previous studies have suggested that the carcinogenesis and progression of GBC is a multi-stage and multi-step process, but most of them focused on the genome changes. And a few studies just compared the transcriptome differences between tumor tissues and adjacent noncancerous tissues. The transcriptome changes, relating to every stage of GBC evolution, have rarely been studied. We selected three cases of normal gallbladder, four cases of gallbladder with chronic inflammation induced by gallstones, five cases of early GBC, and five cases of advanced GBC, using next-generation RNA sequencing to reveal the changes in mRNAs and lncRNAs expression during the evolution of GBC. In-depth analysis of the sequencing data indicated that transcriptome changes from normal gallbladder to gallbladder with chronic inflammation were distinctly related to inflammation, lipid metabolism, and sex hormone metabolism; transcriptome changes from gallbladder with chronic inflammation to early GBC were distinctly related to immune activities and connection between cells; and the transcriptome changes from early GBC to advanced GBC were distinctly related to transmembrane transport of substances and migration of cells. Expression profiles of mRNAs and lncRNAs change significantly during the evolution of GBC, in which lipid-based metabolic abnormalities play an important promotive role, inflammation and immune activities play a key role, and membrane proteins are very highlighted molecular changes.