Evidence map›Paper›PMID 40764928›Full record

ArticleJournal of translational medicine2025

The CTSZ-TRA2A-IL32 axis defines a targetable macrophage-dependent pathway in metastatic prostate cancer.

Saipeng Chen, Bingqian Deng, Youxin Liu, Langlang Xie, Jie Xu, Ruimin Hu, Fuhan Zhao, Guojing Song, Rongrong Ni, Heting Liu and 3 more

Abstract read
In one paragraph

Article in Journal of translational medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

13 authors.

Saipeng ChenDepartment of Urology, Southwest Hospital, Army Medical University (Third Military Medical University), GaoTanYan Main Street 30, Chongqing, 400038, China.
Bingqian DengDepartment of Biochemistry and Molecular Biology, College of Basic Medical Science, Army Medical University (Third Military Medical University), GaoTanYan Main Street 30, Chongqing, 400038, China.
Youxin LiuDepartment of Urology, Southwest Hospital, Army Medical University (Third Military Medical University), GaoTanYan Main Street 30, Chongqing, 400038, China.
Langlang XieDepartment of Biochemistry and Molecular Biology, College of Basic Medical Science, Army Medical University (Third Military Medical University), GaoTanYan Main Street 30, Chongqing, 400038, China.
Jie XuDepartment of Urology, Southwest Hospital, Army Medical University (Third Military Medical University), GaoTanYan Main Street 30, Chongqing, 400038, China.
Ruimin HuDepartment of Urology, Southwest Hospital, Army Medical University (Third Military Medical University), GaoTanYan Main Street 30, Chongqing, 400038, China.
Fuhan ZhaoDepartment of Urology, Southwest Hospital, Army Medical University (Third Military Medical University), GaoTanYan Main Street 30, Chongqing, 400038, China.
Guojing SongDepartment of Urology, Southwest Hospital, Army Medical University (Third Military Medical University), GaoTanYan Main Street 30, Chongqing, 400038, China.
Rongrong NiDepartment of Biochemistry and Molecular Biology, College of Basic Medical Science, Army Medical University (Third Military Medical University), GaoTanYan Main Street 30, Chongqing, 400038, China.
Heting LiuDepartment of Biochemistry and Molecular Biology, College of Basic Medical Science, Army Medical University (Third Military Medical University), GaoTanYan Main Street 30, Chongqing, 400038, China.
Zhansong ZhouDepartment of Urology, Southwest Hospital, Army Medical University (Third Military Medical University), GaoTanYan Main Street 30, Chongqing, 400038, China. zhouzhansong@sohu.com.
Gang HuangDepartment of Biochemistry and Molecular Biology, College of Basic Medical Science, Army Medical University (Third Military Medical University), GaoTanYan Main Street 30, Chongqing, 400038, China. cqhuanggang@tmmu.edu.cn.
Wenhao ShenDepartment of Urology, Southwest Hospital, Army Medical University (Third Military Medical University), GaoTanYan Main Street 30, Chongqing, 400038, China. chongqingswh@aliyun.com.ORCID 0000-0002-4410-128X

Funding

the Chongqing Innovation Leading Talent Project CQYC20220303706the Key Support Object of AMU 410301060133the Nature Science Foundation of Chongqing cstc2021jcyj-msxmX0052
6 · The paper itself

Abstract

backgroundEmerging evidence underscores the pivotal role of M2-polarized tumor-associated macrophages (M2-TAMs) in orchestrating immunosuppressive tumor microenvironments that fuel metastatic dissemination in prostate cancer (PCa), yet the fundamental mechanisms governing M2-TAM trafficking in lethal PCa progression remain poorly understood.

methodsMulti-cohort transcriptomic analyses were performed to identify metastasis-associated genes, with CTSZ prioritized as a key cathepsin linked to prostate cancer progression. Circulating tumor and bone metastatic mouse models were employed to investigate CTSZ-driven M2-TAM infiltration and metastatic behavior. Mechanistic studies included proteasomal degradation assays, IL32 pre-mRNA splicing analysis, and IL-32 binding experiments using RGD motif-dependent interactions. Therapeutic efficacy was tested with the ITGA5 inhibitor GLPG0187 in preclinical models.

resultsElevated CTSZ expression shows strong clinical association with advanced pathological progression. CTSZ overexpression in PCa cells drives lung metastasis dissemination and bone metastatic in vivo model but fails to enhance cell-intrinsic oncogenic behaviors in vitro systems. Overexpression of CTSZ promotes M2-TAM infiltration and metastasis by inducing TRA2A degradation via the proteasome pathway, which alleviates TRA2A-mediated suppression of IL32 alternative splicing. Enhanced IL-32 secretion facilitates M2-TAM recruitment through binding to macrophage integrin ITGA5. Pharmacological inhibition of ITGA5 with GLPG0187 significantly reduced metastatic burden and M2-TAM infiltration in vivo.

conclusionsThe CTSZ/TRA2A/IL-32/ITGA5 axis orchestrates protumoral immunity in PCa metastasis by driving M2-TAM recruitment. Targeting this pathway, particularly through ITGA5 blockade, represents a promising therapeutic strategy to inhibit metastatic progression and remodel the immunosuppressive tumor microenvironment.

Indexed as

InterleukinsMacrophagesProstatic NeoplasmsSignal TransductionAnimalsCell Line, TumorGene Expression Regulation, NeoplasticHumansIntegrin alpha5MaleMiceNeoplasm MetastasisTumor-Associated MacrophagesTumor MicroenvironmentIntegrin alpha5InterleukinsCTSZIL-32ITGA5MacrophageTRA2ATumor microenvironment

Identifiers

PMID40764928
PMCPMC12326790

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.