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Uncovering immune cell-associated genes in breast cancer : based on summary data-based Mendelian randomized analysis and colocalization study

Liu, Jingyang ; Sun, Wen ; Li, Ning ; Li, Haibin ; Wu, Lijuan ; Yi, Huan LU ; Ji, Jianguang LU orcid and Zheng, Deqiang LU (2024) In Breast cancer research : BCR 26.
Abstract

BACKGROUND: Breast cancer, which is the most prevalent form of cancer among women globally, encompasses various subtypes that demand distinct treatment approaches. The tumor microenvironment and immune response are of crucial significance in the development and progression of breast cancer. Nevertheless, there has been scant evidence concerning the genes within breast cancer - specific immune cells.

METHODS: We utilized summary data-based Mendelian randomization (SMR) to identify genes associated with breast cancer by utilizing expression quantitative trait loci (eQTL) datasets for 14 different immune cell types and genome-wide association studies (GWAS) for overall breast cancer and its subtypes. Furthermore, colocalization... (More)

BACKGROUND: Breast cancer, which is the most prevalent form of cancer among women globally, encompasses various subtypes that demand distinct treatment approaches. The tumor microenvironment and immune response are of crucial significance in the development and progression of breast cancer. Nevertheless, there has been scant evidence concerning the genes within breast cancer - specific immune cells.

METHODS: We utilized summary data-based Mendelian randomization (SMR) to identify genes associated with breast cancer by utilizing expression quantitative trait loci (eQTL) datasets for 14 different immune cell types and genome-wide association studies (GWAS) for overall breast cancer and its subtypes. Furthermore, colocalization analysis was carried out to evaluate whether the observed association in SMR analyses is influenced by the same causal variant. Replication analysis and bulk RNA sequencing (bulkRNA-seq) analysis were employed to validate promising immune genes as potential drug targets.

RESULTS: After correcting for the rate of false discovery, we discovered a total of 17 genes in 9 immune cell types that were significantly associated with overall breast cancer and its subtypes. The genes KCNN4, L3MBTL3, ZBTB38, MDM4, and TNFSF10 were identified in overall breast cancer and its subtypes. Colocalization analyses provided robust evidence in support of these associations. Notably, the KCNN4 gene in non-classical MONOcytes (MONOnc) was further validated through replication analysis and bulkRNA-seq analysis.

CONCLUSION: In summary, our research has revealed a repertoire of genes within diverse immune cells associated with breast cancer. KCNN4 gene in non-classical MONOcytes (MONOnc) exhibited a negative association with overall breast cancer and its subtypes, which was identified as a potential drug target for breast cancer, opening up new avenues for therapeutic interventions.

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author
; ; ; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Humans, Breast Neoplasms/genetics, Female, Quantitative Trait Loci, Genome-Wide Association Study, Mendelian Randomization Analysis, Genetic Predisposition to Disease, Biomarkers, Tumor/genetics, Polymorphism, Single Nucleotide, Tumor Microenvironment/immunology, Gene Expression Regulation, Neoplastic
in
Breast cancer research : BCR
volume
26
article number
172
publisher
BioMed Central (BMC)
external identifiers
  • scopus:85211181351
  • pmid:39614330
ISSN
1465-5411
DOI
10.1186/s13058-024-01928-0
language
English
LU publication?
no
additional info
© 2024. The Author(s).
id
c42c8e24-56db-4226-962b-6bec365e1960
date added to LUP
2024-12-01 14:12:37
date last changed
2025-07-05 16:40:20
@article{c42c8e24-56db-4226-962b-6bec365e1960,
  abstract     = {{<p>BACKGROUND: Breast cancer, which is the most prevalent form of cancer among women globally, encompasses various subtypes that demand distinct treatment approaches. The tumor microenvironment and immune response are of crucial significance in the development and progression of breast cancer. Nevertheless, there has been scant evidence concerning the genes within breast cancer - specific immune cells.</p><p>METHODS: We utilized summary data-based Mendelian randomization (SMR) to identify genes associated with breast cancer by utilizing expression quantitative trait loci (eQTL) datasets for 14 different immune cell types and genome-wide association studies (GWAS) for overall breast cancer and its subtypes. Furthermore, colocalization analysis was carried out to evaluate whether the observed association in SMR analyses is influenced by the same causal variant. Replication analysis and bulk RNA sequencing (bulkRNA-seq) analysis were employed to validate promising immune genes as potential drug targets.</p><p>RESULTS: After correcting for the rate of false discovery, we discovered a total of 17 genes in 9 immune cell types that were significantly associated with overall breast cancer and its subtypes. The genes KCNN4, L3MBTL3, ZBTB38, MDM4, and TNFSF10 were identified in overall breast cancer and its subtypes. Colocalization analyses provided robust evidence in support of these associations. Notably, the KCNN4 gene in non-classical MONOcytes (MONOnc) was further validated through replication analysis and bulkRNA-seq analysis.</p><p>CONCLUSION: In summary, our research has revealed a repertoire of genes within diverse immune cells associated with breast cancer. KCNN4 gene in non-classical MONOcytes (MONOnc) exhibited a negative association with overall breast cancer and its subtypes, which was identified as a potential drug target for breast cancer, opening up new avenues for therapeutic interventions.</p>}},
  author       = {{Liu, Jingyang and Sun, Wen and Li, Ning and Li, Haibin and Wu, Lijuan and Yi, Huan and Ji, Jianguang and Zheng, Deqiang}},
  issn         = {{1465-5411}},
  keywords     = {{Humans; Breast Neoplasms/genetics; Female; Quantitative Trait Loci; Genome-Wide Association Study; Mendelian Randomization Analysis; Genetic Predisposition to Disease; Biomarkers, Tumor/genetics; Polymorphism, Single Nucleotide; Tumor Microenvironment/immunology; Gene Expression Regulation, Neoplastic}},
  language     = {{eng}},
  month        = {{11}},
  publisher    = {{BioMed Central (BMC)}},
  series       = {{Breast cancer research : BCR}},
  title        = {{Uncovering immune cell-associated genes in breast cancer : based on summary data-based Mendelian randomized analysis and colocalization study}},
  url          = {{http://dx.doi.org/10.1186/s13058-024-01928-0}},
  doi          = {{10.1186/s13058-024-01928-0}},
  volume       = {{26}},
  year         = {{2024}},
}