Macrophage migration inhibitory factor may contribute to the occurrence of multiple primary lung adenocarcinomas

Author:

Liu Wei1ORCID,Yang Hao‐Shuai2,Zhi Fei‐Hang1,Feng Yan‐Fen34,Luo Hong‐He1,Zhu Ying5,Lei Yi‐Yan1

Affiliation:

1. Department of Thoracic Surgery The First Affiliated Hospital Sun Yat‐sen University Guangzhou Guangdong China

2. Department of Thoracic Surgery China‐Japan Friendship Hospital Beijing China

3. State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine Sun Yat‐sen University Cancer Center Guangzhou Guangdong China

4. Department of Pathology Sun Yat‐sen University Cancer Center Guangzhou Guangdong China

5. Department of Radiology The First Affiliated Hospital Sun Yat‐sen University Guangzhou Guangdong China

Abstract

AbstractBackgroundThis study aimed to identify the key genes involved in the development of multiple primary lung cancers.MethodsDifferential expression analysis was performed, followed by comparing the infiltration levels of 22 immune cell types between multiple and single primary lung adenocarcinomas. Marker genes for epithelial cells with different proportions between the two types of lung adenocarcinomas were identified. The common genes between the marker genes and differentially expressed genes were identified. Finally, the effects of the key genes were tested on the in vitro proliferation, migration and morphology.Results:The infiltration levels of helper follicular T cells, resting NK cells, activated NK cells, M2 macrophages and resting mast cells were higher in the patients with multiple than in those with single primary lung adenocarcinomas. A total of 1553 differentially expressed genes and 4414 marker genes of epithelial cells were identified. Logistic regression analysis was performed on the 164 resulting genes. The macrophage migration inhibitory factor expression was positively associated with the occurrence of multiple primary lung adenocarcinomas. Moreover, its signalling pathway was the key pathway among the epithelial cells and multiple and single primary lung adenocarcinoma cells, and it was upregulated in lung adenocarcinoma cells. It also increased the expression of lung cancer markers, including NES and CA125, induced morphological changes in alveolar epithelial type II cells, and promoted their proliferation, migration and invasion.ConclusionsMultiple and single primary lung adenocarcinomas have different tumour immune microenvironments, and migration inhibitory factor may be a key factor in the occurrence of multiple primary lung adenocarcinomas.

Publisher

Wiley

Subject

Molecular Medicine,Medicine (miscellaneous)

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