1. Dedni rak telesa maternice : kdaj je indicirano genetsko svetovanjeKsenija Strojnik, Ana Blatnik, Mateja Krajc, 2023, published scientific conference contribution Abstract: Tudi genetski dejavniki imajo vlogo pri nagnjenosti k razvoju raka telesa maternice. Najpogosteje se pojavlja v sklopu dednega sindroma Lynch (približno 3 % vseh bolnic z rakom telesa maternice). Pri vseh bolnicah s karcinomom endometrija se zato opravlja presejanje za sindrom Lynch, in sicer z imunohistokemičnim barvanjem za izražanje beljakovin popravljanja neujemanja in/ali z določanjem mikrosatelitne nestabilnosti iz primarnega tumorja. Pri vseh je tudi zelo pomembno natančno preveriti družinsko in osebno anamnezo drugih malignih ali benignih tumorjev. Na ta način aktivno iščemo tiste, ki imajo večjo verjetnost, da so nosilke genetskih okvar, povezanih z dedno obliko raka telesa maternice. Te potrebujejo napotitev in obravnavo pri kliničnem genetiku. V Ambulanti za onkološko genetsko svetovanje Onkološkega inštituta Ljubljana obravnava teh bolnic in njihovih svojcev poteka v okviru multidisciplinarne obravnave. Nosilci podedovanih genskih okvar lahko na podlagi genetskega izvida informirano soodločajo o preventivnih ukrepih glede na njihovo ogroženost za rake, ki so povezani v določen dedni sindrom.
Keywords: rak maternice, ginekološki raki, ginekološka onkologija
Published in DiRROS: 01.06.2023; Views: 196; Downloads: 86
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3. Dedni dejavniki, povezani z rakom prostateMateja Krajc, Ana Blatnik, Ksenija Strojnik, 2023, published scientific conference contribution Abstract: Rak prostate je najpogostejši rak pri moških tako v svetu kot tudi v Sloveniji. Najpomembnejši nevarnostni dejavniki za raka prostate so starost, etnična pripadnost in družinska anamneza raka prostate. Rak prostate se lahko pojavlja v sklopu različnih dednih sindromov, kot sta npr. sindrom dednega raka dojk in/ ali jajčnikov in sindrom Lynch. Moških z rakom prostate in pozitivno družinsko anamnezo rakavih obolenj ne testiramo le zato, da bi ocenili njihovo ogroženost za razvoj drugih rakov v sklopu dednega sindroma. Zaradi razvoja specifičnih zdravil je izvid genetskega testiranja lahko pri njih pomemben tudi za načrtovanje zdravljenja. Zadnjih nekaj let smo priča hitremu razvoju genetskih testiranj za zarodne patogene in verjetno patogene različice v genih, ki visoko in zmerno ogrožajo za raka prostate in lahko napovedujejo agresivnost bolezni in odziv na specifično zdravljenje. Obenem se uveljavlja tudi genetsko testiranje vzorcev tumorske DNA, ki zazna tako zarodne kot pridobljene, t. i. somatske patogene različice, vpletene v proces kancerogeneze. Genetski izvid je pomemben tudi za krvne sorodnike testiranih. Če je v določenem genu prisotna zarodna patogena različica, je možno odkrivanje nosilcev te okvare tudi med ostalimi sorodniki. Zdravim nosilcem lahko tako omogočimo njim prilagojene presejalne programe za rake, za katere so lahko visoko ali zmerno ogroženi.
Keywords: rak prostate, dednost, genetika
Published in DiRROS: 02.02.2023; Views: 286; Downloads: 66
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4. Klinična pot in obseg dela genomskega svetovalca v procesu obravnave pacienta v Ambulanti za onkološko genetsko svetovanje in testiranje Oddelka za onkološko klinično genetikoNatalija Klopčič, Svetlana Novak, Tina Kerševan, Barbara Babuder, Ana Blatnik, Ksenija Strojnik, Mateja Krajc, 2022, professional monograph Keywords: genetsko svetovanje, genetsko testiranje, klinična genetika, genomsko svetovanje
Published in DiRROS: 15.11.2022; Views: 347; Downloads: 157
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5. Identification of spliceogenic variants beyond canonical GT-AG splice sites in hereditary cancer genesVita Šetrajčič Dragoš, Ksenija Strojnik, Gašper Klančar, Petra Škerl, Vida Stegel, Ana Blatnik, Marta Banjac, Mateja Krajc, Srdjan Novaković, 2022, original scientific article Abstract: Pathogenic/likely pathogenic variants in susceptibility genes that interrupt RNA splicing are a well-documented mechanism of hereditary cancer syndromes development. However, if RNA studies are not performed, most of the variants beyond the canonical GT-AG splice site are characterized as variants of uncertain significance (VUS). To decrease the VUS burden, we have bioinformatically evaluated all novel VUS detected in 732 consecutive patients tested in the routine genetic counseling process. Twelve VUS that were predicted to cause splicing defects were selected for mRNA analysis. Here, we report a functional characterization of 12 variants located beyond the first two intronic nucleotides using RNAseq in APC, ATM, FH, LZTR1, MSH6, PALB2, RAD51C, and TP53 genes. Based on the analysis of mRNA, we have successfully reclassified 50% of investigated variants. 25% of variants were downgraded to likely benign, whereas 25% were upgraded to likely pathogenic leading to improved clinical management of the patient and the family members.
Keywords: hereditary cancer, RNA sequencing, spliceogenic
Published in DiRROS: 07.09.2022; Views: 354; Downloads: 184
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6. Real-world data on detection of germline and somatic pathogenic/likely pathogenic variants in BRCA1/2 and other susceptibility genes in ovarian cancer patients using next generation sequencingVida Stegel, Ana Blatnik, Erik Škof, Vita Šetrajčič Dragoš, Mateja Krajc, Brigita Gregorčič, Petra Škerl, Ksenija Strojnik, Gašper Klančar, Marta Banjac, Janez Žgajnar, Maja Ravnik-Oblak, Srdjan Novaković, 2022, original scientific article Abstract: Detection of germline and somatic pathogenic/likely pathogenic variants (PV/LPV) in BRCA genes is at the moment a prerequisite for use of PARP inhibitors in different treatment settings of different tumors. The aim of our study was to determine the most appropriate testing workflow in epithelial ovarian cancer (EOC) patients using germline and tumor genotyping of BRCA and other hereditary breast and/or ovarian cancer (HBOC) susceptibility genes. Consecutive patients with advanced non-mucinous EOC, who responded to platinum-based chemotherapy, were included in the study. DNA extracted from blood and FFPE tumor tissue were genotyped using NGS panels TruSightCancer/Hereditary and TruSight Tumor 170. Among 170 EOC patients, 21.8% had BRCA germline or somatic PV/LPV, and additionally 6.4% had PV/LPV in other HBOC genes. Sensitivity of tumor genotyping for detection of germline PV/LPV was 96.2% for BRCA genes and 93.3% for HBOC genes. With germline genotyping-only strategy, 58.8% of HBOC PV/LPV and 68.4% of BRCA PV/LPV were detected. By tumor genotyping-only strategy, 96.1% of HBOC PV/LPV and 97.4% of BRCA PV/LPV were detected. Genotyping of tumor first, followed by germline genotyping seems to be a reasonable approach for detection of PV/LPV in breast and/or ovarian cancer susceptibility genes in non-mucinous EOC patients.
Keywords: BRCA, ovarian cancer, tumor genotyping, HBOC
Published in DiRROS: 06.09.2022; Views: 372; Downloads: 203
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7. Priporočila za obravnavo bolnikov z adenokarcinomom tankega črevesa2021, not set Keywords: rak (medicina), epidemiologija, preventiva, dedna predispozicija, diagnostika, kirurško zdravljenje, adjuvantna terapija, sistemsko zdravljenje, radioterapija, sledenje pacientov, medicinska rehabilitacija, paliativna oskrba, elektronske knjige
Published in DiRROS: 17.03.2022; Views: 533; Downloads: 264
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8. Prednostno genetsko testiranje na zarodne mutacije pri bolnikih z metastatskim rakom prostate/pankreasa/dojk, ki potrebujejo izvid za zdravljenje raka s PARP inhibitorjiKsenija Strojnik, Ana Blatnik, Marta Banjac, Simona Hotujec, Natalija Klopčič, Janja Ocvirk, Srdjan Novaković, Mateja Krajc, 2021, dictionary, encyclopaedia, lexicon, manual, atlas, map Keywords: genetika, rak prostate, genetsko testiranje, klinične poti
Published in DiRROS: 16.03.2022; Views: 532; Downloads: 292
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9. Klinična pot genetske obravnave bolnic z epitelijskim nemucinoznim rakom jajčnikov/jajcevodov/primarnim peritonealnim seroznim karcinomomErik Škof, Ksenija Strojnik, Marta Banjac, Ana Blatnik, Vida Stegel, Natalija Klopčič, Simona Hotujec, Srdjan Novaković, Mateja Krajc, 2021, dictionary, encyclopaedia, lexicon, manual, atlas, map Keywords: rak jajčnikov, genetika, zdravljenje, klinične poti
Published in DiRROS: 16.03.2022; Views: 530; Downloads: 265
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10. Kaj je dedni rak? : dedno pogojeni raki - genetsko svetovanje in testiranjeAna Blatnik, Mateja Krajc, Ksenija Strojnik, Srdjan Novaković, Barbara Perić, Marta Banjac, Janez Žgajnar, 2020, not set Keywords: medicinska genetika, genetsko testiranje
Published in DiRROS: 11.03.2022; Views: 607; Downloads: 185
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