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    GENE:

    RAD51C (RAD51 paralog C)

    i
    Other names: RAD51C, RAD51 paralog C, R51H3, BROVCA3, RAD51L2
    1d
    Loss of the RAD-51 isoform A redirects DNA repair and preserves genome stability in FANCD2-deficient Caenorhabditis elegans. (PubMed, BMC Biol)
    Together, these findings reveal a novel role for RAD-51 C. elegans, suggesting that the pattern of RAD-51 isoform expression modulates the balance between homologous recombination and non-homologous-end-joining, thereby preserving genome stability.
    Journal
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    RAD51 (RAD51 Homolog A) • RAD51C (RAD51 paralog C) • FANCD2 (FA Complementation Group D2)
    1d
    Frequency of germline pathogenic variants in breast cancer predisposing genes in a national cohort of young women with breast cancer. (PubMed, Br J Cancer)
    Overall, 18.6% of women with young breast cancer had PVs in 18 genes tested, including 6.8% in a gene other than BRCA1 or BRCA2. Study results suggest that genetic testing should be offered to all women diagnosed breast cancer at the age of 40 or younger.
    Journal • BRCA Biomarker
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    TP53 (Tumor protein P53) • BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • PTEN (Phosphatase and tensin homolog) • ATM (ATM serine/threonine kinase) • STK11 (Serine/threonine kinase 11) • PALB2 (Partner and localizer of BRCA2) • MLH1 (MutL homolog 1) • MSH6 (MutS homolog 6) • MSH2 (MutS Homolog 2) • PMS2 (PMS1 protein homolog 2) • CDH1 (Cadherin 1) • CHEK2 (Checkpoint kinase 2) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • EPCAM (Epithelial cell adhesion molecule) • BARD1 (BRCA1 Associated RING Domain 1)
    5d
    Hereditary Cancer Genetic Testing for All? A Retrospective Analysis on Genetic Mutations Found in Individuals Not Meeting NCCN® Guidelines. (PubMed, Eur J Breast Health)
    These findings support the potential value of expanded or universal genetic testing strategies, particularly in populations with limited family history or those outside current clinical criteria.
    Retrospective data • Journal • BRCA Biomarker
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • ATM (ATM serine/threonine kinase) • CDKN2A (Cyclin Dependent Kinase Inhibitor 2A) • NF1 (Neurofibromin 1) • BAP1 (BRCA1 Associated Protein 1) • PALB2 (Partner and localizer of BRCA2) • MLH1 (MutL homolog 1) • MSH6 (MutS homolog 6) • MSH2 (MutS Homolog 2) • SMAD4 (SMAD family member 4) • PMS2 (PMS1 protein homolog 2) • APC (APC Regulator Of WNT Signaling Pathway) • CDH1 (Cadherin 1) • CHEK2 (Checkpoint kinase 2) • SDHB (Succinate Dehydrogenase Complex Iron Sulfur Subunit B) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • MBD4 (Methyl-CpG Binding Domain 4, DNA Glycosylase) • MSH3 (MutS Homolog 3) • BARD1 (BRCA1 Associated RING Domain 1) • NBN (Nibrin Nijmegen Breakage Syndrome 1 (Nibrin)) • MUTYH (MutY homolog) • FLCN (Folliculin) • POT1 (Protection of telomeres 1) • MITF (Melanocyte Inducing Transcription Factor) • SDHD (Succinate Dehydrogenase Complex Subunit D) • HOXB13 (Homeobox B13) • LZTR1 (Leucine Zipper Like Transcription Regulator 1) • SDHA (Succinate Dehydrogenase Complex Flavoprotein Subunit A)
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    ATM mutation • CHEK2 mutation • BRIP1 mutation • BARD1 mutation
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    CancerNext-Expanded®
    12d
    Targeted Early Detection Program in Men at High Genetic Risk for Prostate Cancer (clinicaltrials.gov)
    P=N/A, N=200, Recruiting, University of Michigan Rogel Cancer Center
    New trial
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    BRCA1 (Breast cancer 1, early onset) • ATM (ATM serine/threonine kinase) • BRCA (Breast cancer early onset) • CHEK2 (Checkpoint kinase 2) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • NBN (Nibrin Nijmegen Breakage Syndrome 1 (Nibrin)) • ABRAXAS1 (Abraxas 1 BRCA1 A Complex Subunit 2) • GEN1 (GEN1 Holliday junction 5' flap endonuclease) • HOXB13 (Homeobox B13)
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    TP53 mutation • BRCA1 mutation • ATM mutation • PALB2 mutation • CHEK2 mutation • BRIP1 mutation • RAD51C mutation • RAD51D mutation • BRCA mutation
    13d
    Avelumab and M6620 for the Treatment of DDR Deficient Metastatic or Unresectable Solid Tumors (clinicaltrials.gov)
    P1/2, N=23, Active, not recruiting, M.D. Anderson Cancer Center | Trial completion date: Dec 2025 --> Jan 2027
    Trial completion date
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • ATM (ATM serine/threonine kinase) • ARID1A (AT-rich interaction domain 1A) • BAP1 (BRCA1 Associated Protein 1) • MSH2 (MutS Homolog 2) • CDK12 (Cyclin dependent kinase 12) • ATRX (ATRX Chromatin Remodeler) • CHEK2 (Checkpoint kinase 2) • SMARCB1 (SWI/SNF Related, Matrix Associated, Actin Dependent Regulator Of Chromatin, Subfamily B, Member 1) • RAD51 (RAD51 Homolog A) • FANCA (FA Complementation Group A) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • CD4 (CD4 Molecule) • RAD51D (RAD51 paralog D) • BARD1 (BRCA1 Associated RING Domain 1) • NBN (Nibrin Nijmegen Breakage Syndrome 1 (Nibrin)) • FANCF (FA complementation group F) • FANCM (FA Complementation Group M) • FANCD2 (FA Complementation Group D2) • FANCE (FA Complementation Group E) • FANCC (FA Complementation Group C)
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    Bavencio (avelumab) • berzosertib (M6620)
    21d
    Communication With Clinicians and Relatives About Cascade Genetic Testing in Cancer Patients With Germline Pathogenic Variants. (PubMed, JCO Precis Oncol)
    Patients with cancer are motivated to communicate PV results to relatives. However, few clinicians are involved and relatives' testing remains low. Novel care delivery models are needed to advance cascade testing and precision risk reduction.
    Journal • BRCA Biomarker
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    TP53 (Tumor protein P53) • BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • PTEN (Phosphatase and tensin homolog) • STK11 (Serine/threonine kinase 11) • CDKN2A (Cyclin Dependent Kinase Inhibitor 2A) • PALB2 (Partner and localizer of BRCA2) • MLH1 (MutL homolog 1) • MSH6 (MutS homolog 6) • MSH2 (MutS Homolog 2) • SMAD4 (SMAD family member 4) • PMS2 (PMS1 protein homolog 2) • CDH1 (Cadherin 1) • CHEK2 (Checkpoint kinase 2) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • POLD1 (DNA Polymerase Delta 1) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • EPCAM (Epithelial cell adhesion molecule) • BARD1 (BRCA1 Associated RING Domain 1) • BMPR1A (Bone Morphogenetic Protein Receptor Type 1A)
    22d
    KEYNOTE-F86: A Study of PARG Inhibitor IDE161 in Participants With Advanced Solid Tumors (clinicaltrials.gov)
    P1, N=216, Active, not recruiting, IDEAYA Biosciences | Recruiting --> Active, not recruiting
    Enrollment closed
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • HRD (Homologous Recombination Deficiency) • CDK12 (Cyclin dependent kinase 12) • CHEK2 (Checkpoint kinase 2) • FANCA (FA Complementation Group A) • RAD51B (RAD51 Paralog B) • BRIP1 (BRCA1 Interacting Protein C-terminal Helicase 1) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • CHEK1 (Checkpoint kinase 1) • BARD1 (BRCA1 Associated RING Domain 1) • NBN (Nibrin Nijmegen Breakage Syndrome 1 (Nibrin)) • RAD54L (DNA Repair And Recombination Protein RAD54) • FANCL (FA Complementation Group L) • PPP2R2A (Protein Phosphatase 2, Regulatory Subunit B, Alpha)
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    HRD
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    Keytruda (pembrolizumab) • IDE161
    26d
    A Study of Olaparib and Pembrolizumab in People With Triple Negative Breast Cancer (TNBC) or Hormone Receptor-positive HER2-negative Breast Cancer (clinicaltrials.gov)
    P2, N=6, Active, not recruiting, Memorial Sloan Kettering Cancer Center | N=23 --> 6
    Enrollment change
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    HER-2 (Human epidermal growth factor receptor 2) • PGR (Progesterone receptor) • BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D)
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    BRCA2 mutation • BRCA1 mutation • HR positive • HER-2 negative • PALB2 mutation • RAD51C mutation • RAD51D mutation • HR positive + HER-2 negative • HER-2 negative + HR positive + BRCA mutation
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    Keytruda (pembrolizumab) • Lynparza (olaparib)
    28d
    Hereditary breast cancer : Syndromes, pathology, clinical aspects (PubMed, Pathologie (Heidelb))
    There are also therapeutic implications, such as the use of PARP inhibitors in BRCA1/2-associated HER2-negative breast cancer. Predictive genetic testing may be considered for relatives as well as intensified early detection programs and risk-reducing surgery, if necessary.Close interdisciplinary cooperation is therefore crucial in order to identify patients with possible hereditary tumorigenesis at an early stage and to enable an individualized therapy and follow-up care strategy.
    Review • Journal • BRCA Biomarker • PARP Biomarker
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    HER-2 (Human epidermal growth factor receptor 2) • TP53 (Tumor protein P53) • BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • PTEN (Phosphatase and tensin homolog) • STK11 (Serine/threonine kinase 11) • HRD (Homologous Recombination Deficiency) • NF1 (Neurofibromin 1) • PALB2 (Partner and localizer of BRCA2) • CDH1 (Cadherin 1) • CHEK2 (Checkpoint kinase 2) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • BARD1 (BRCA1 Associated RING Domain 1)
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    BRCA1 mutation • HER-2 negative
    1m
    Particulate Hexavalent Chromium Inhibits RAD51 Paralogs Necessary for RAD51 Filament Formation and Stabilization During Homologous Recombination Repair. (PubMed, Occup Health (Auckl))
    Cr(VI) also inhibited overall RAD51D protein expression, as well as its interaction with RAD51. These findings suggest that Cr(VI) inhibits all RAD51 paralogs, but RAD51D might be an early target of Cr(VI), leading to the loss of RAD51 filament formation and function and the overall inhibition of homologous recombination repair.
    Journal
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    HRD (Homologous Recombination Deficiency) • RAD51 (RAD51 Homolog A) • RAD51B (RAD51 Paralog B) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D) • XRCC2 (X-Ray Repair Cross Complementing 2) • XRCC3 (X-Ray Repair Cross Complementing 3)
    1m
    Mammary Duct Ectasia Presenting As MRI Non-mass Enhancement in a RAD51C Carrier With Pituitary Adenoma. (PubMed, Cureus)
    Her history included hyperprolactinemia from a growth hormone- and prolactin-positive pituitary adenoma diagnosed at age 41 and treated surgically, raising the possibility of an endocrine contribution to ductal dilatation and secretory stasis. This case emphasizes the importance of radiologic-pathologic correlation to avoid overdiagnosis while highlighting a potential link between long-standing hyperprolactinemia and mammary duct ectasia in susceptible patients.
    Journal
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    RAD51C (RAD51 paralog C)
    1m
    FIMBRIMENOP-2402 trial: evaluating fimbriectomy with delayed oophorectomy in patients with high-risk tubo-ovarian cancer. (PubMed, Int J Gynecol Cancer)
    Final analysis is planned when all patients reach age 70 (around 2071). NCT06726330.
    Journal • BRCA Biomarker
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    BRCA1 (Breast cancer 1, early onset) • BRCA2 (Breast cancer 2, early onset) • PALB2 (Partner and localizer of BRCA2) • RAD51C (RAD51 paralog C) • RAD51D (RAD51 paralog D)
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    BRCA1 mutation • PALB2 mutation • RAD51C mutation • RAD51D mutation