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GENE:

PIK3R1 (Phosphoinositide-3-Kinase Regulatory Subunit 1)

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Other names: PIK3R1, Phosphoinositide-3-Kinase Regulatory Subunit 1, Phosphatidylinositol 3-Kinase 85 KDa Regulatory Subunit Alpha, Phosphoinositide-3-Kinase, Regulatory Subunit 1 (Alpha), Phosphatidylinositol 3-Kinase Regulatory Subunit Alpha, Phosphoinositide-3-Kinase Regulatory Subunit Alpha, PtdIns-3-Kinase Regulatory Subunit Alpha, PI3K Regulatory Subunit Alpha, PI3-Kinase Subunit P85-Alpha, GRB1, Phosphatidylinositol 3-Kinase, Regulatory Subunit, Polypeptide 1 (P85 Alpha), Phosphatidylinositol 3-Kinase-Associated P-85 Alpha, PtdIns-3-Kinase Regulatory Subunit P85-Alpha, PI3-Kinase Regulatory Subunit Alpha, P85-ALPHA, IMD36, AGM7, P85
7d
Synergistic action of Yinyanghuo A and Magnograndiolide against ovarian cancer: A computational prediction of targets and mechanism via network pharmacology and molecular simulations. (PubMed, Comput Biol Chem)
This study systematically elucidates the multi-component, multi-target, and multi-pathway mechanisms underlying Epimedium's anti-ovarian cancer effects, thereby providing a theoretical foundation for its potential clinical application. It should be noted, however, that these findings are computational predictions and thus require experimental validation.
Journal
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PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) • PIK3R1 (Phosphoinositide-3-Kinase Regulatory Subunit 1) • PIK3CB (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit beta)
8d
Butterfly Glioblastoma: Genetic alterations and outcomes. (PubMed, J Clin Neurosci)
This study provides novel insights into the genetic blueprint of bGBM. Further research with larger cohorts is needed to validate these findings and better understand the molecular features of bGBM.
Journal
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TSC2 (TSC complex subunit 2) • PIK3R1 (Phosphoinositide-3-Kinase Regulatory Subunit 1) • CDK6 (Cyclin-dependent kinase 6)
8d
Endometrioid Versus Seromucinous Borderline Ovarian Tumors: Divergent Molecular Signatures and a Shared Role as Precursors to Endometrioid Carcinoma. (PubMed, Int J Gynecol Pathol)
Pathway analysis revealed predominant WNT/β-catenin signaling in EBTs versus RAS-MEK-ERK pathway alterations in SMBTs resembling the seromucinous variant of ovarian endometrioid carcinoma, with additional involvement of PI3K-PTEN-AKT-mTOR and SWI/SNF chromatin remodeling pathways in both. These findings demonstrate that EBTs and SMBTs possess distinct morphologic and molecular profiles, expanding the molecular characterization of early ovarian endometrioid-type neoplasms.
Journal
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KRAS (KRAS proto-oncogene GTPase) • BRAF (B-raf proto-oncogene) • TP53 (Tumor protein P53) • PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) • PTEN (Phosphatase and tensin homolog) • ARID1A (AT-rich interaction domain 1A) • AKT1 (V-akt murine thymoma viral oncogene homolog 1) • KMT2D (Lysine Methyltransferase 2D) • FAT1 (FAT atypical cadherin 1) • PIK3R1 (Phosphoinositide-3-Kinase Regulatory Subunit 1) • ZFHX3 (Zinc Finger Homeobox 3)
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KRAS mutation • BRAF mutation • PIK3CA mutation • PTEN mutation • ARID1A mutation
13d
Expanding the molecular grading criteria in IDH-mutant astrocytoma. (PubMed, Neuro Oncol)
The presence of CDK4, CCND2, PDGFRA, PIK3R1, MYCN, and EGFR alterations result in an intermediate patient survival in IDH-mutant astrocytoma. Adding these molecular alterations should be considered in future diagnostic classification systems to improve stratification of high-risk patients.
Journal
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EGFR (Epidermal growth factor receptor) • PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) • CDKN2A (Cyclin Dependent Kinase Inhibitor 2A) • PDGFRA (Platelet Derived Growth Factor Receptor Alpha) • TERT (Telomerase Reverse Transcriptase) • MYCN (MYCN Proto-Oncogene BHLH Transcription Factor) • CDK4 (Cyclin-dependent kinase 4) • CDKN2B (Cyclin Dependent Kinase Inhibitor 2B) • PIK3R1 (Phosphoinositide-3-Kinase Regulatory Subunit 1) • CCND2 (Cyclin D2)
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EGFR mutation • PIK3CA mutation • EGFR amplification • CDKN2A deletion • MYCN amplification • PDGFRA mutation
14d
Triptonide Suppresses AML via PI3K/AKT Signaling: A Network Pharmacology Approach Validated by Molecular Docking and Experimental Studies. (PubMed, Curr Issues Mol Biol)
These findings reveal the therapeutic potential of TN against AML through inhibiting the PI3K/AKT axis. With no PI3K/AKT inhibitors targeting AML approved as first-line therapies, TN emerges as a promising candidate for AML treatment, offering a safer natural alternative.
Journal
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EGFR (Epidermal growth factor receptor) • PIK3R1 (Phosphoinositide-3-Kinase Regulatory Subunit 1) • HSP90AA1 (Heat Shock Protein 90 Alpha Family Class A Member 1Heat Shock Protein 90 Alpha Family Class A Member 1) • HSP90AB1 (Heat Shock Protein 90 Alpha Family Class B Member 1)
14d
Astragali radix Against Colorectal Cancer: Network Pharmacology, Molecular Docking, and In Vitro/In Vivo Validation of PI3K-Akt Pathway Modulation. (PubMed, Phytother Res)
This study demonstrates that A. Radix inhibits tumor cell proliferation through multi-component targeting of the PI3K-Akt signaling pathway, providing new therapeutic targets and theoretical evidence for CRC treatment. Furthermore, it establishes a methodological framework for the modern investigation of traditional Chinese medicine formulations.
Preclinical • Journal
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PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) • PIK3R1 (Phosphoinositide-3-Kinase Regulatory Subunit 1)
15d
A PMS2-deficient pediatric high-grade glioma with PI3K-pathway mutations and adjacent developmental venous anomaly suggestive of CMMRD. (PubMed, Childs Nerv Syst)
This case illustrates the characteristic clinicopathological and molecular features of CMMRD-associated pediatric high-grade glioma and underscores the critical role of routine mismatch repair immunohistochemistry. Integrated histological and genomic evaluation is essential for accurate diagnosis, appropriate genetic counseling, and potential therapeutic implications. Key Points • This case represents a pediatric high-grade glioma arising in the setting of PMS2-related constitutional mismatch repair deficiency (CMMRD). • The tumor exhibited an ultra-hypermutated profile with co-occurring TP53, PIK3CA, PIK3R1, and PTEN mutations. • Loss of PMS2 expression in both tumor and non-neoplastic cells was critical in establishing the diagnosis of CMMRD. • The presence of a developmental venous anomaly may relate to underlying PIK3R1 pathway alterations. • Routine mismatch repair immunohistochemistry is essential in pediatric high-grade gliomas, even in the absence of a family history.
Journal • Tumor mutational burden
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TP53 (Tumor protein P53) • PIK3CA (Phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha) • TMB (Tumor Mutational Burden) • PTEN (Phosphatase and tensin homolog) • PMS2 (PMS1 protein homolog 2) • PIK3R1 (Phosphoinositide-3-Kinase Regulatory Subunit 1)
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TP53 mutation • PIK3CA mutation • PTEN mutation
16d
Network pharmacology refined with non-ubiquity and decoy-controlled molecular docking reveals insights into Moringa oleifera phytochemicals targeting insulin resistance. (PubMed, Front Bioinform)
Using our approach, the following phytochemicals, with predicted moderate bioavailability, high GI absorption, and probable binding with insulin resistance targets, are recommended for further in vivo or in vitro validation for insulin resistance activity: boldione (a steroid); aurantiamide acetate and aurantiamide (peptide derivatives); O-ethyl-[(3,4-dihydroxyphenyl)methyl] carbamothioate and O-methyl-N-[(4-hydroxyphenyl)methyl] carbamothioate (thiocarbamates); 4α,6α-dihydroxyeudesman-8β,12-olide (a sesquiterpenoid); sanleng acid and tianshic acid (fatty acid derivatives); 2',5,5',7-tetrahydroxyflavone; 2',3,5,7-tetrahydroxyflavone; and 6-hydroxykaempferol (flavonoids). By combining network centrality measures of targets, using ROC-derived thresholds for docking energies, and considering ubiquity of phytochemicals, our refined network pharmacology approach may aid in discovering key bioactive phytochemicals as potential chemical markers for standardization and differentiation of an herbal drug.
Journal
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TNFA (Tumor Necrosis Factor-Alpha) • PIK3R1 (Phosphoinositide-3-Kinase Regulatory Subunit 1) • PTPN1 (Protein Tyrosine Phosphatase Non-Receptor Type 1) • IR (Insulin receptor) • PPARG (Peroxisome Proliferator Activated Receptor Gamma) • NOS3 (Nitric oxide synthase 3) • PPARA (Peroxisome Proliferator Activated Receptor Alpha)
17d
Prediction of Prostate Adenocarcinoma Recurrence Prognosis and Immune Status Through 6-Acetoxy-Anopterine Resistance-Associated Programmed Cell Death Genes. (PubMed, Cancer Manag Res)
TOP2A, PABPN1, BCL2L12, TRIM14, PIK3R1 and LAPTM4B were novel PCD-related prognostic markers for PRAD. BCL2L12 might take part in the resistance of 6-AA in PRAD via the cysteine-type endopeptidase activity pathway.
Journal
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TOP2A (DNA topoisomerase 2-alpha) • PIK3R1 (Phosphoinositide-3-Kinase Regulatory Subunit 1) • CD4 (CD4 Molecule) • BCL2L12 (BCL2 Like 12)
17d
Glyphosate-Induced Metabolic and Immune Modulation in Hepatoma Cells: Identification of Key Genes as Diagnostic and Therapeutic Targets Using an In Silico Systems Biology Approach. (PubMed, J Xenobiot)
Notably, all hub genes demonstrated strong diagnostic performance, highlighting their potential as sensitive biomarkers of glyphosate exposure. Collectively, this study provides comprehensive insights into gene expression changes associated with glyphosate exposure in hepatoma cells, linking them to hepatic metabolic dysregulation and immune modulation and suggesting a panel of hub genes with potential diagnostic and therapeutic significance.
Journal
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TNFA (Tumor Necrosis Factor-Alpha) • PIK3R1 (Phosphoinositide-3-Kinase Regulatory Subunit 1) • CEBPA (CCAAT Enhancer Binding Protein Alpha) • CD36 (thrombospondin receptor) • ALDOA (Aldolase Fructose-Bisphosphate A) • ATF3 (Activating Transcription Factor 3) • JUNB (JunB Proto-Oncogene AP-1 Transcription Factor Subunit) • PFKFB3 (6-Phosphofructo-2-Kinase/Fructose-2,6-Biphosphatase 3) • PGK1 (Phosphoglycerate Kinase 1) • PNPLA3 (Patatin Like Phospholipase Domain Containing 3) • PPARA (Peroxisome Proliferator Activated Receptor Alpha)
17d
Phellinus linteus polysaccharides inhibit castration-resistant prostate cancer progression possibly via dual modulation of PIK3R1 and PGC-1α: a preclinical evaluation. (PubMed, Am J Cancer Res)
In a castrated PC-3 xenograft model, PLP (400 mg/kg/day) suppressed tumor volume growth by 91.7% and tumor weight growth by 78.0% compared with the control group, showing efficacy comparable to abiraterone/prednisone without hepatorenal toxicity...Integrative transcriptomic and multi-omics analyses revealed coordinated downregulation of phosphatidylinositol 3-kinase-protein kinase B-mechanistic target of rapamycin signaling and upregulation of peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α). Functional validation showed that overexpression of phosphoinositide-3-kinase regulatory subunit 1 rescued PLP-induced tumor suppression, whereas knockdown of PGC-1α abolished its antioxidative and antiproliferative effects, indicating that both pathways are critically involved. These findings suggest that PLP combats CRPC by simultaneously inhibiting oncogenic signaling and mitigating oxidative stress, positioning it as a promising natural therapeutic candidate for CRPC.
Preclinical • Journal
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PIK3R1 (Phosphoinositide-3-Kinase Regulatory Subunit 1)
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abiraterone acetate • prednisone • sirolimus
18d
BIO-APDS: New Biomarker-based Strategy to Screen and Monitor for Activated Phosphoinositide 3-kinase δ Syndrome (clinicaltrials.gov)
P=N/A, N=14, Recruiting, Assistance Publique - Hôpitaux de Paris | Not yet recruiting --> Recruiting | Trial completion date: May 2029 --> Dec 2029 | Trial primary completion date: Sep 2028 --> Jun 2029
Enrollment open • Trial completion date • Trial primary completion date
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PIK3R1 (Phosphoinositide-3-Kinase Regulatory Subunit 1) • PIK3CD (Phosphatidylinositol-4 5-Bisphosphate 3-Kinase Catalytic Subunit Delta)