Evidence map›Paper›PMID 41596716›Full record

ArticleInternational journal of molecular sciences2026

Tangeretin Suppresses LUAD via SSTR4 Downregulation: Integrated Bioinformatics and Functional Validation.

Yizhen Yuan, Yongfu Wang, Wei Liu, Changmin Liu, Yajing Xue, Pengzhuo Tao, Shilin Chen, Chi Song

Abstract read
In one paragraph

Article in International journal of molecular sciences, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Yizhen YuanSchool of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
Yongfu WangSchool of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
Wei LiuSchool of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
Changmin LiuSchool of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
Yajing XueSchool of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
Pengzhuo TaoSchool of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
Shilin ChenSchool of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
Chi SongSchool of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.ORCID 0000-0003-3904-963X

Funding

the Chief Scientist Research Project of Hubei Shizhen Laboratory HSL2024SX0006the Key Science and Technology Project of Hubei Shizhen Laboratory SZL-2025-KT-06the Talent Research Start-up Fund Project of Chengdu University of Traditional Chinese Medicine 030040015
6 · The paper itself

Abstract

Lung adenocarcinoma (LUAD) remains the leading cause of cancer-related mortality worldwide, highlighting the urgent need for novel therapeutic targets. While the role of the somatostatin receptor (SSTR) family is well established in neuroendocrine tumors, their expression patterns, clinical significance, and therapeutic potential in LUAD are not fully understood. In this study, comprehensive analyses of publicly available databases, including TCGA, GSCA, and TIMER, revealed that SSTR4 transcriptional expression is significantly downregulated in LUAD tissues compared to adjacent normal lung tissues. Moreover, low SSTR4 expression correlates with advanced tumor stage, remodeling of the immune microenvironment, and decreased overall survival in patients with LUAD. Using the PRESTO-Tango system, we identified tangeretin (TAN) as a potential ligand for SSTR4. Functional assays demonstrated that SSTR4 knockdown markedly enhanced TAN-mediated proliferative, migratory, and survival inhibitory effects in LUAD cells. Subsequent RNA sequencing and pathway enrichment analyses revealed that the loss of SSTR4 altered the effects of TAN from extracellular matrix remodeling to disruption of calcium homeostasis and energy metabolism disorders, elucidating the mechanism underlying the enhanced antitumor activity. Collectively, these findings establish SSTR4 as a critical tumor suppressor and prognostic biomarker in LUAD and highlight the therapeutic potential of targeting the TAN-SSTR4 signaling axis. These results provide novel insights into the biological functions of SSTR family members in LUAD.

Indexed as

Computational BiologyDown-RegulationFlavonesGene Expression Regulation, NeoplasticLung NeoplasmsReceptors, SomatostatinCell Line, TumorCell MovementCell ProliferationHumansFlavonesReceptors, Somatostatinsomatostatin receptor subtype-4tangeretinA549LUADRNA-seqSSTR4tangeretin

Identifiers

PMID41596716
PMCPMC12842074

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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 OpenQuestion graph.