Analysis of differential splicing gene by regulation of splicing regulatory protein KHSRP in lung adenocarcinoma

Xiaoli LIU; Wenjun CHAI; Lei SUN; Mingxia YAN; Hongyu PAN; Yuexi SUN

doi:10.19401/j.cnki.1007-3639.2023.07.001

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Analysis of differential splicing gene by regulation of splicing regulatory protein KHSRP in lung adenocarcinoma

Article | 更新时间：2025-12-31

- Analysis of differential splicing gene by regulation of splicing regulatory protein KHSRP in lung adenocarcinoma
- China Oncology Vol. 33, Issue 7, Pages: 637-645(2023)
- 作者机构：
  
  1. 复旦大学附属肿瘤医院肿瘤研究所，复旦大学上海医学院肿瘤学系，上海 200032
  2. 同济大学附属同济医院急诊医学科，上海 200065
- 作者简介：
  
  SUN Yuexi.
- 基金信息：
- DOI：10.19401/j.cnki.1007-3639.2023.07.001
  CLC： R734.2
- Received：15 April 2023，
  
  Revised：2023-06-27，
  
  Published：30 July 2023
- 稿件说明：
移动端阅览
Xiaoli LIU, Wenjun CHAI, Lei SUN, et al. Analysis of differential splicing gene by regulation of splicing regulatory protein KHSRP in lung adenocarcinoma[J]. China Oncology, 2023, 33(7): 637-645.
DOI：

Xiaoli LIU, Wenjun CHAI, Lei SUN, et al. Analysis of differential splicing gene by regulation of splicing regulatory protein KHSRP in lung adenocarcinoma[J]. China Oncology, 2023, 33(7): 637-645. DOI： 10.19401/j.cnki.1007-3639.2023.07.001.

摘要

背景与目的：

可变剪接在细胞增殖、生长、凋亡及分化等复杂的蛋白质功能调控中发挥着至关重要的作用，能参与包括肿瘤在内的多种疾病的发生、发展过程，目前大多数可变剪接调控因子的功能及其作用机制尚不清楚。本研究旨在探讨KH型剪接调控蛋白（KH-type splicing regulatory protein，KHSRP）在肺腺癌中的差异剪接靶基因及靶基因的表达与患者预后及免疫细胞功能的相关性。

方法：

通过高通量可变剪接测序，筛选KHSRP下游差异剪接靶基因。通过肿瘤免疫评估资源（Tumor IMmune Estimation Resource，TIMER）和阿拉巴马大学伯明翰分校癌症数据分析门户（the University of Alabama at Birmingham cancer data analysis portal，ULCAN）分析KHSRP下游差异剪接靶基因在肺腺癌中的表达。通过Kaplan数据库分析KHSRP下游差异剪接靶基因的表达与患者预后的相关性。通过TIMER免疫模块分析KHSRP下游差异剪接靶基因与免疫细胞功能的相关性。

结果：

NUMB

、

ADD

3及

LIMCH

1为KHSRP的下游关键可变剪接靶基因。

NUMB

、

ADD

3及

LIMCH

1在肺腺癌肿瘤组织中均呈低表达，其低表达者预后不良。

NUMB

、

ADD

3及

LIMCH

1与免疫细胞功能呈正相关。

结论：

在肺腺癌中，

NUMB

、

ADD

3及

LIMCH

1为

KHSRP

的差异剪接靶基因，且

NUMB

、

ADD

3及

LIMCH

1低表达会导致预后不良，并且与免疫细胞功能呈正相关。

Abstract

Background and purpose:

Alternative splicing plays a crucial role in the functions and regulation of complex proteins such as cell proliferation

growth

apoptosis and differentiation

and can cause the occurrence and development of various diseases

including cancer. Currently

the functions and molecular mechanisms of most alternative splicing factors are not clear. The purpose of this study was to explore the differential splicing target genes of KH-type splicing regulatory protein (KHSRP) in lung adenocarcinoma and their correlation with prognosis and immune cell function.

Methods:

Screening downstream dif

ferential splicing target genes of KHSRP was carried out through high-throughput variable splicing sequencing. We analyzed the expressions of KHSRP downstream differential splicing target genes in lung adenocarcinoma through cancer databases Tumor IMmune Estimation Resource (TIMER) and the University of Alabama at Birmingham cancer data analysis portal (ULCAN). We also analyzed the correlation between the expression of differential splicing target genes downstream of KHSRP and prognosis through Kaplan database. The correlation between downstream differential splicing target genes of KHSRP and immune cell function was analyzed through the TIMER immune module.

Results:

NUMB endocytic adaptor protein (NUMB)

adducin 3 (ADD3) and LIM and calponin homology domains 1 (

LIMCH

1) were key downstream variable splicing target genes of KHSRP.

NUMB

ADD

3 and

LIMCH

1 were all expressed at low level in lung adenocarcinoma tumor tissue. Low expressions of

NUMB

ADD

3 and

LIMCH

1 in lung cancer leaded to poor prognosis. NUMB

ADD3 and LIMCH1 were positively correlated with immune cell function.

Conclusion:

In lung adenocarcinoma

NUMB

ADD

3 and

LIMCH

1 are differential splicing target genes of KHSRP

their low expression levels indicate poor prognosis

and they are positively correlated with immune cell function.

关键词

Keywords

references

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