Correlation of MKI67 with prognosis, immune infiltration, and T cell exhaustion in hepatocellular carcinoma

Abstract Background MKI67 plays a vital role in the tumour microenvironment (TME) and congenital immunity. The present work focuses on exploring the prognosis prediction performance of MKI67 and its associations with T cell activity and immune infiltration within numerous cancers, especially hepatoc...

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Main Authors: Shi-yi Wu, Pan Liao, Lu-yu Yan, Qian-yi Zhao, Zhao-yu Xie, Jie Dong, Hong-tao Sun
Format: Article
Language:English
Published: BMC 2021-11-01
Series:BMC Gastroenterology
Subjects:
Online Access:https://doi.org/10.1186/s12876-021-01984-2
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author Shi-yi Wu
Pan Liao
Lu-yu Yan
Qian-yi Zhao
Zhao-yu Xie
Jie Dong
Hong-tao Sun
author_facet Shi-yi Wu
Pan Liao
Lu-yu Yan
Qian-yi Zhao
Zhao-yu Xie
Jie Dong
Hong-tao Sun
author_sort Shi-yi Wu
collection DOAJ
description Abstract Background MKI67 plays a vital role in the tumour microenvironment (TME) and congenital immunity. The present work focuses on exploring the prognosis prediction performance of MKI67 and its associations with T cell activity and immune infiltration within numerous cancers, especially hepatocellular liver carcinoma (LIHC). Methods Oncomine, GEPIA2, and HPA were adopted to analyse MKI67 levels in different types of cancers. The prognostic prediction performance of MKI67 was evaluated through the TCGA portal, GEPIA2, LOGpc, and Kaplan–Meier Plotter databases. The associations of MKI67 with related gene marker sets and immune infiltration were inspected through TISIDB, GEPIA2, and TIMER. We chose MKI67 to analyse biological processes (BPs) and KEGG pathways related to the coexpressed genes. Furthermore, the gene–miRNA interaction network for MKI67 in liver cancer was also examined based on the miRWalk database. Results MKI67 expression decreased in many cancers related to the dismal prognostic outcome of LIHC. We found that MKI67 significantly affected the prognosis of LIHC in terms of histology and grade. Increased MKI67 levels were directly proportional to the increased immune infiltration degrees of numerous immune cells and functional T cells, such as exhausted T cells. In addition, several critical genes related to exhausted T cells, including TIM-3, TIGIT, PD-1, LAG3, and CXCL13, were strongly related to MKI67. Further analyses showed that MKI67 was associated with adaptive immunity, cell adhesion molecules (CAMs), and chemokine/immune response signal transduction pathways. Conclusion MKI67 acts as a prognostic prediction biomarker in several cancers, particularly LIHC. Upregulation of MKI67 elevates the degree of immune infiltration of many immune cell subtypes, including functional T cells, CD4+ T cells, and CD8+ T cells. Furthermore, MKI67 shows a close correlation with T cell exhaustion, which plays a vital role in promoting T cell exhaustion within LIHC. Detection of the MKI67 level contributes to prognosis prediction and MKI67 modulation within exhausted T cells, thus providing a new method to optimize the efficacy of anti-LIHC immunotherapy.
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spelling doaj.art-cc7537cd99fc4c1ba0a4be3217c384c92022-12-21T19:57:41ZengBMCBMC Gastroenterology1471-230X2021-11-0121111910.1186/s12876-021-01984-2Correlation of MKI67 with prognosis, immune infiltration, and T cell exhaustion in hepatocellular carcinomaShi-yi Wu0Pan Liao1Lu-yu Yan2Qian-yi Zhao3Zhao-yu Xie4Jie Dong5Hong-tao Sun6Department of Cardiology, Inner Mongolia Forestry General HospitalDepartment of Neurology, Inner Mongolia Forestry General HospitalDepartment of Cardiology, Inner Mongolia Forestry General HospitalDepartment of Cardiology, Inner Mongolia Forestry General HospitalOphthalmology Department, The Second Xiangya Hospital, Central South UniversityDepartment of Gastroenterology, Inner Mongolia Forestry General HospitalDepartment of Cardiology, Affiliated Hospital of Inner Mongolia University for NationalitiesAbstract Background MKI67 plays a vital role in the tumour microenvironment (TME) and congenital immunity. The present work focuses on exploring the prognosis prediction performance of MKI67 and its associations with T cell activity and immune infiltration within numerous cancers, especially hepatocellular liver carcinoma (LIHC). Methods Oncomine, GEPIA2, and HPA were adopted to analyse MKI67 levels in different types of cancers. The prognostic prediction performance of MKI67 was evaluated through the TCGA portal, GEPIA2, LOGpc, and Kaplan–Meier Plotter databases. The associations of MKI67 with related gene marker sets and immune infiltration were inspected through TISIDB, GEPIA2, and TIMER. We chose MKI67 to analyse biological processes (BPs) and KEGG pathways related to the coexpressed genes. Furthermore, the gene–miRNA interaction network for MKI67 in liver cancer was also examined based on the miRWalk database. Results MKI67 expression decreased in many cancers related to the dismal prognostic outcome of LIHC. We found that MKI67 significantly affected the prognosis of LIHC in terms of histology and grade. Increased MKI67 levels were directly proportional to the increased immune infiltration degrees of numerous immune cells and functional T cells, such as exhausted T cells. In addition, several critical genes related to exhausted T cells, including TIM-3, TIGIT, PD-1, LAG3, and CXCL13, were strongly related to MKI67. Further analyses showed that MKI67 was associated with adaptive immunity, cell adhesion molecules (CAMs), and chemokine/immune response signal transduction pathways. Conclusion MKI67 acts as a prognostic prediction biomarker in several cancers, particularly LIHC. Upregulation of MKI67 elevates the degree of immune infiltration of many immune cell subtypes, including functional T cells, CD4+ T cells, and CD8+ T cells. Furthermore, MKI67 shows a close correlation with T cell exhaustion, which plays a vital role in promoting T cell exhaustion within LIHC. Detection of the MKI67 level contributes to prognosis prediction and MKI67 modulation within exhausted T cells, thus providing a new method to optimize the efficacy of anti-LIHC immunotherapy.https://doi.org/10.1186/s12876-021-01984-2ImmunotherapyImmune infiltrationT cells exhaustionPrognosisMKI67
spellingShingle Shi-yi Wu
Pan Liao
Lu-yu Yan
Qian-yi Zhao
Zhao-yu Xie
Jie Dong
Hong-tao Sun
Correlation of MKI67 with prognosis, immune infiltration, and T cell exhaustion in hepatocellular carcinoma
BMC Gastroenterology
Immunotherapy
Immune infiltration
T cells exhaustion
Prognosis
MKI67
title Correlation of MKI67 with prognosis, immune infiltration, and T cell exhaustion in hepatocellular carcinoma
title_full Correlation of MKI67 with prognosis, immune infiltration, and T cell exhaustion in hepatocellular carcinoma
title_fullStr Correlation of MKI67 with prognosis, immune infiltration, and T cell exhaustion in hepatocellular carcinoma
title_full_unstemmed Correlation of MKI67 with prognosis, immune infiltration, and T cell exhaustion in hepatocellular carcinoma
title_short Correlation of MKI67 with prognosis, immune infiltration, and T cell exhaustion in hepatocellular carcinoma
title_sort correlation of mki67 with prognosis immune infiltration and t cell exhaustion in hepatocellular carcinoma
topic Immunotherapy
Immune infiltration
T cells exhaustion
Prognosis
MKI67
url https://doi.org/10.1186/s12876-021-01984-2
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