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pmid:34430428
AKT3 and related molecules as potential biomarkers responsible for cryptorchidism and cryptorchidism-induced azoospermia.
Hongshuai Jia · Tiantian Ma · Shujing Jia · Yuru Ouyang
Translational pediatrics · 2021 doi:10.21037/tp-21-31
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Experiment
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Complete file
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The present study aimed to identify new differentially expressed genes (DEGs) associated with signaling pathways related to spermatogonial stem cell (SSC) maintenance during early spermatogenesis.\nMETHODS: GEO2R was used to screen for genes differentially regulated in cryptorchidism using mRNA expression profiling data in the GEO database. DAVID was used to perform GO and KEGG enrichment analysis of DEGs to analyze their functions. A protein-protein interaction (PPI) network of DEGs was constructed using the STRING database. The hub genes in the PPI networks were identified using Maximal Clique Centrality (MCC) in Cytohubba, and the top 50 genes were displayed as hub genes using Cytoscape software. Then, the miRNAs targeting hub genes were predicted using miRWalk and an mRNA-miRNA interaction network was constructed using Cytoscape. We took the intersection of these target miRNAs and the differentially expressed miRNAs identified from a non-coding RNA sequencing dataset, GSE149084. Furthermore, the intersected miRNAs and their predicted target genes were validated in the testicular tissue of rats with cryptorchidism.\nRESULTS: A total of 474 DEGs were identified, most of which were annotated to the PI3K-AKT-mTOR signaling pathway. Hub genes related to the pathway were predicted to be targeted by 27 miRNAs. Further miRNA mining revealed that miRNA-7-5p and miRNA-519d-3p were both dysregulated in cryptorchidism patients. Further, we found that these two miRNAs were predicted with high confidence to share a common target gene, AKT3. In the testicular tissue of rats with cryptorchidism, miRNA-519d-3p was upregulated while miRNA-7-5p and AKT3 were downregulated. We also found that AKT3 plays an essential role in regulating SSC state through the PI3K-AKT-mTOR signaling pathway and that AKT3 is one of the key genes related to SSC self-renewal, proliferation, and differentiation.\nCONCLUSIONS: The PI3K-AKT-mTOR signaling pathway functions in SSC maintenance, and alterations in this pathway may explain defects in spermatogenesis. 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The physical bench the paper used is not, so a physical validation cannot be run here."}, "data": {"tier": "R1", "reachable": true, "accessions": ["GSE16191", "GSE25518", "GSE149084"], "resolved_accessions": ["GSE16191", "GSE25518", "GSE149084"], "statements": ["The GSE16191 dataset comprises gene expression data for 14 UDT and 4 contralateral descended testis (DT) tissue samples from testicular agenesis patients, while the GSE25518 is for 19 UDT and 4 contralateral DT tissue samples from testicular agenesis patients."], "basis": "The paper names GSE16191, GSE25518, GSE149084 in GEO database and the accession resolves in the repository. No dataset was downloaded and no licence was read."}}, "can_run": {"dsl_operations": ["build_graph", "centrality_scores", "pathway_enrich"], "assets": ["source:pmid:34430428", "data:geo:GSE149084", "asset:table:pmid:34430428:1", "asset:table:pmid:34430428:2"], "steps": ["run_analysis"]}, "must_build": {"dsl_operations": [], "converters": [], "readers": [], "capabilities": [], "data_gaps": ["data:geo:GSE149084"]}, "gaps": []}, "review": {"state": "partial", "machine_critique": {"kind": "extraction_review", "reader": {"model": "MiniMax-M3.1-Flash", "provider": "minimax", "provider_family": "minimax", "read_at": "2026-10-31T19:46:23Z", "independence": "single_reader"}, "evidence_check": {"method": null, "availability": null}, "calls": 3, "usage": {"prompt_tokens": 32124, "completion_tokens": 1767, "cached_tokens": 784}}, "human_critique": null, "stages": [{"id": "extraction", "state": "complete", "reader": "MiniMax-M3.1-Flash", "provider": "minimax"}], "gaps": ["review.independent_reader", "review.machine_critique", "review.human_critique"]}, "execution": {"state": "absent", "status": "not_run", "mode": null, "runs": [], "gaps": ["execution.not_run"]}, "provenance": {"entities": [{"id": "pmid:34430428", "type": "paper", "label": "pmid:34430428"}, {"id": "source:pmid:34430428", "type": "manuscript", "label": "PMID 34430428 full text"}, {"id": "data:geo:GSE149084", "type": "dataset", "label": "GEO GSE149084"}], "activities": [{"id": "activity-reading-sci-2026-11-01", "type": "classification", "used": [{"id": "pmid:34430428", "type": "paper", "label": "pmid:34430428"}, {"id": "source:pmid:34430428", "type": "manuscript", "label": "PMID 34430428 full text"}, {"id": "data:geo:GSE149084", "type": "dataset", "label": "GEO GSE149084"}], "agent": "agent:corpus-assay-engine"}, {"id": "activity-read-34430428", "type": "extraction", "used": ["source:pmid:34430428"], "agent": "agent:minimax-reader"}, {"id": "activity-resolve-GSE149084", "type": "accession_resolution", "used": ["data:geo:GSE149084"], "agent": "agent:corpus-assay-engine"}], "agents": [{"id": "agent:corpus-assay-engine", "type": "software", "label": "Corpus assay engine"}, {"id": "agent:minimax-reader", "type": "software", "label": "MiniMax literature reader"}], "source_run_id": "reading-sci-2026-11-01", "dsl_catalogue_fingerprint": "343fb30756ba6ec3", "capability_table_fingerprint": "2cb3e42f047d2ecf", "snapshot_id": "ba34b49490d9bfaf"}, "lineage": {"parent_id": "pmid:34430428", "parent_hash": "sha256:0205351c363b705235a971c0bcc148993d19fa8c6ef185a8e5e61a0a5639cb8d", "fork_of": null, "generation": 7}, "gaps": ["asset:data:geo:GSE149084 licence not read", "asset:data:geo:GSE149084 not downloaded", "asset:data:geo:GSE16191 licence not read", "asset:data:geo:GSE16191 not downloaded", "asset:data:geo:GSE25518 licence not read", "asset:data:geo:GSE25518 not downloaded", "execution.not_run", "review.human_critique", "review.independent_reader", "review.machine_critique"], "assays": [{"role": "data_generation", "definition_id": "rna_seq", "definition_version": "99e1195c7d6f", "definition_digest": null, "required_operations": [], "support_state": "partial", "source_hashes": {"assay_lexicon": "99e1195c7d6f"}, "confidence": 0.93, "evidence": ["xpressed miRNAs identified from a non-coding RNA sequencing dataset, GSE149084. Furthermore, the interse"], "order_basis": "paper_text_order:1242", "id": "assay:1"}, {"role": "data_generation", "definition_id": "animal_model", "definition_version": "99e1195c7d6f", "definition_digest": null, "required_operations": [], "support_state": "partial", "source_hashes": {"assay_lexicon": "99e1195c7d6f"}, "confidence": 0.99, "evidence": ["s were validated in the testicular tissue of rats with cryptorchidism. RESULTS: A total of 474", "rget gene, AKT3. In the testicular tissue of rats with cryptorchidism, miRNA-519d-3p was upreg", "l Technology Co., Ltd. (Beijing, China). All rats were maintained in a controlled environment set a", "hway profiles. Animals A total of 20 male SD rats, aged 3–4 weeks, were obtained from Beijing"], "order_basis": "paper_text_order:1389", "id": "assay:2"}, {"role": "data_generation", "definition_id": "microarray", "definition_version": "99e1195c7d6f", "definition_digest": null, "required_operations": [], "support_state": "partial", "source_hashes": {"assay_lexicon": "99e1195c7d6f"}, "confidence": 0.99, "evidence": ["Methods Microarray analysis of cryptorchidism patients The stud", "EO database [GSE16191 (18) and GSE25518 (6); Affymetrix GPL570 platform, Affymetrix Human Genome U13", "nd GSE25518 (6); Affymetrix GPL570 platform, Affymetrix Human Genome U133 Plus 2.0 Array]. The GSE16", "public database. Note that the probes of the Affymetrix GPL570 chip were automatically converted int"], "order_basis": "paper_text_order:2559", "id": "assay:3"}, {"role": "analysis", "definition_id": "network_analysis", "definition_version": "f2132e96ae6c7a4e", "definition_digest": null, "required_operations": ["build_graph", "centrality_scores", "pathway_enrich"], "support_state": "supported", "source_hashes": {"dsl_catalogue": "f2132e96ae6c7a4e"}, "confidence": 0.7, "evidence": ["protein-protein interaction"], "order_basis": "consumes_earlier_output", "id": "assay:4"}]}