1
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Walenciak J, Urbanska Z, Pastorczak A, Babol-Pokora K, Wypyszczak K, Bien E, Gawlowska-Marciniak A, Kobos J, Grajkowska W, Smyczynska J, Mlynarski W, Janczar S. An Asymptomatic, Ectopic Mass as a Presentation of Adrenocortical Carcinoma Due to a Novel Germline TP53 p.Phe338Leu Tetramerisation Domain Variant. Children (Basel) 2023; 10:1793. [PMID: 38002884 PMCID: PMC10670401 DOI: 10.3390/children10111793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/20/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023]
Abstract
Adrenocortical carcinoma (ACC) is a rare cancer in childhood. ACC is frequently associated with germline TP53 variants, with founder effects especially due to the p.Arg337His mutation. ACC leads to the secretion of adrenocortical hormones, resulting in endocrine syndromes, which is the usual trigger for establishing the diagnosis. We present a surprising ACC pathology in a non-secreting, ectopic retroperitoneal tumour in a 4-year-old boy, successfully controlled with chemotherapy and mitotane after microscopically incomplete tumour resection with spillage. Genomic analysis (gene panel sequencing and copy-number microarray) demonstrated a novel p.Phe338Leu tetramerisation domain (TD) TP53 variant in the proband and his cancer-free mother and a monoallelic deletion encompassing the TP53 locus in cancer tissue, consistent with cancer-predisposition syndrome. While the recurrent p.Arg337His variant translates into high ACC risk, residue 338 and, in general, TD domain variants drive heterogeneous clinical scenarios, despite generally being considered less disruptive than TP53 DNA-binding domain mutations.
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Affiliation(s)
- Justyna Walenciak
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, 91-738 Lodz, Poland; (J.W.); (Z.U.); (A.P.); (K.B.-P.); (K.W.); (W.M.)
| | - Zuzanna Urbanska
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, 91-738 Lodz, Poland; (J.W.); (Z.U.); (A.P.); (K.B.-P.); (K.W.); (W.M.)
| | - Agata Pastorczak
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, 91-738 Lodz, Poland; (J.W.); (Z.U.); (A.P.); (K.B.-P.); (K.W.); (W.M.)
| | - Katarzyna Babol-Pokora
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, 91-738 Lodz, Poland; (J.W.); (Z.U.); (A.P.); (K.B.-P.); (K.W.); (W.M.)
| | - Kamila Wypyszczak
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, 91-738 Lodz, Poland; (J.W.); (Z.U.); (A.P.); (K.B.-P.); (K.W.); (W.M.)
| | - Ewa Bien
- Department of Pediatrics, Hematology and Oncology, Medical University of Gdansk, 80-210 Gdansk, Poland;
| | - Aleksandra Gawlowska-Marciniak
- Department of Pediatric Surgery and Oncology, Central University Hospital, Medical University of Lodz, 91-738 Lodz, Poland;
| | - Jozef Kobos
- Department of Normal and Clinical Anatomy, Chair of Anatomy and Histology, Medical University of Lodz, 92-213 Lodz, Poland;
| | - Wieslawa Grajkowska
- Department of Pathology, The Children’s Memorial Health Institute, 04-736 Warsaw, Poland;
| | - Joanna Smyczynska
- Department of Pediatrics, Endocrinology, Diabetology and Nephrology, Medical University of Lodz, 91-738 Lodz, Poland;
| | - Wojciech Mlynarski
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, 91-738 Lodz, Poland; (J.W.); (Z.U.); (A.P.); (K.B.-P.); (K.W.); (W.M.)
| | - Szymon Janczar
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, 91-738 Lodz, Poland; (J.W.); (Z.U.); (A.P.); (K.B.-P.); (K.W.); (W.M.)
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2
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Dardik R, Janczar S, Lalezari S, Avishai E, Levy-Mendelovich S, Barg AA, Martinowitz U, Babol-Pokora K, Mlynarski W, Kenet G. Four Decades of Carrier Detection and Prenatal Diagnosis in Hemophilia A: Historical Overview, State of the Art and Future Directions. Int J Mol Sci 2023; 24:11846. [PMID: 37511607 PMCID: PMC10380558 DOI: 10.3390/ijms241411846] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/09/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023] Open
Abstract
Hemophilia A (HA), a rare recessive X-linked bleeding disorder, is caused by either deficiency or dysfunction of coagulation factor VIII (FVIII) resulting from deleterious mutations in the F8 gene encoding FVIII. Over the last 4 decades, the methods aimed at determining the HA carrier status in female relatives of HA patients have evolved from phenotypic studies based on coagulation tests providing merely probabilistic results, via genetic linkage studies based on polymorphic markers providing more accurate results, to next generation sequencing studies enabling highly precise identification of the causative F8 mutation. In parallel, the options for prenatal diagnosis of HA have progressed from examination of FVIII levels in fetal blood samples at weeks 20-22 of pregnancy to genetic analysis of fetal DNA extracted from chorionic villus tissue at weeks 11-14 of pregnancy. In some countries, in vitro fertilization (IVF) combined with preimplantation genetic diagnosis (PGD) has gradually become the procedure of choice for HA carriers who wish to prevent further transmission of HA without the need to undergo termination of pregnancies diagnosed with affected fetuses. In rare cases, genetic analysis of a HA carrier might be complicated by skewed X chromosome inactivation (XCI) of her non-hemophilic X chromosome, thus leading to the phenotypic manifestation of moderate to severe HA. Such skewed XCI may be associated with deleterious mutations in X-linked genes located on the non-hemophilic X chromosome, which should be considered in the process of genetic counseling and PGD planning for the symptomatic HA carrier. Therefore, whole exome sequencing, combined with X-chromosome targeted bioinformatic analysis, is highly recommended for symptomatic HA carriers diagnosed with skewed XCI in order to identify additional deleterious mutations potentially involved in XCI skewing. Identification of such mutations, which may profoundly impact the reproductive choices of HA carriers with skewed XCI, is extremely important.
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Affiliation(s)
- Rima Dardik
- National Hemophilia Center, Sheba Medical Center, Ramat Gan 52621, Israel
- Amalia Biron Research Institute of Thrombosis and Hemostasis, Sackler School of Medicine, Tel Aviv University, Tel Aviv 52621, Israel
| | - Szymon Janczar
- Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, 90-419 Lodz, Poland
| | - Shadan Lalezari
- National Hemophilia Center, Sheba Medical Center, Ramat Gan 52621, Israel
- Amalia Biron Research Institute of Thrombosis and Hemostasis, Sackler School of Medicine, Tel Aviv University, Tel Aviv 52621, Israel
| | - Einat Avishai
- National Hemophilia Center, Sheba Medical Center, Ramat Gan 52621, Israel
- Amalia Biron Research Institute of Thrombosis and Hemostasis, Sackler School of Medicine, Tel Aviv University, Tel Aviv 52621, Israel
| | - Sarina Levy-Mendelovich
- National Hemophilia Center, Sheba Medical Center, Ramat Gan 52621, Israel
- Amalia Biron Research Institute of Thrombosis and Hemostasis, Sackler School of Medicine, Tel Aviv University, Tel Aviv 52621, Israel
| | - Assaf Arie Barg
- National Hemophilia Center, Sheba Medical Center, Ramat Gan 52621, Israel
- Amalia Biron Research Institute of Thrombosis and Hemostasis, Sackler School of Medicine, Tel Aviv University, Tel Aviv 52621, Israel
| | - Uri Martinowitz
- National Hemophilia Center, Sheba Medical Center, Ramat Gan 52621, Israel
| | - Katarzyna Babol-Pokora
- Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, 90-419 Lodz, Poland
| | - Wojciech Mlynarski
- Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, 90-419 Lodz, Poland
| | - Gili Kenet
- National Hemophilia Center, Sheba Medical Center, Ramat Gan 52621, Israel
- Amalia Biron Research Institute of Thrombosis and Hemostasis, Sackler School of Medicine, Tel Aviv University, Tel Aviv 52621, Israel
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3
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Dobrewa W, Madzio J, Babol-Pokora K, Lopacz P, Gierszon A, Guz K, Orzinska A, Uhrynowska M, Jasinska A, Zdunek M, Mlynarski W, Janczar S. A high prevalence of neutrophil-specific antibodies in ELANE-mutated severe congenital neutropenia. Pediatr Blood Cancer 2023; 70:e30247. [PMID: 36734404 DOI: 10.1002/pbc.30247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 01/04/2023] [Accepted: 01/20/2023] [Indexed: 02/04/2023]
Abstract
An assay for neutrophil-specific antibodies is frequently used in the workup of chronic severe neutropenia and is suggestive of autoimmune, or sporadically alloimmune neutropenia, rather than severe congenital neutropenia (SCN). We analyzed a neutropenia consortium database for the outcomes of antibody testing initiated before receiving genetic diagnosis in Polish SCN cohort. Test results, performed in a single reference laboratory, were available for 14 patients with ELANE-mutated SCN or cyclic neutropenia, and were frequently positive (36%). We note that the trigger for genetic studies in severe neutropenia should not be affected by antibody-positivity and should be clinically driven.
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Affiliation(s)
- Weronika Dobrewa
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| | - Joanna Madzio
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| | - Katarzyna Babol-Pokora
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| | - Patrycja Lopacz
- Department of Hematological and Transfusion Immunology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Agnieszka Gierszon
- Department of Hematological and Transfusion Immunology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Katarzyna Guz
- Department of Hematological and Transfusion Immunology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Agnieszka Orzinska
- Department of Hematological and Transfusion Immunology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Malgorzata Uhrynowska
- Department of Hematological and Transfusion Immunology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Aleksandra Jasinska
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| | - Maciej Zdunek
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| | - Wojciech Mlynarski
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| | - Szymon Janczar
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
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4
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Janczar S, Kirschner M, Beier F, Brümmendorf TH, Ussowicz M, Babol-Pokora K, Oszer A, Yoshimi A, Kalwak K, Mlynarski W. Challenges in the interpretation of a germline TERT variant in a patient with juvenile myelomonocytic leukemia. Pediatr Blood Cancer 2022; 69:e29909. [PMID: 35927969 DOI: 10.1002/pbc.29909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 07/01/2022] [Accepted: 07/13/2022] [Indexed: 11/08/2022]
Abstract
Dyskeratosis congenita (DC) is a bone marrow failure syndrome with extrahematopoietic abnormalities. DC is a paradigmatic telomere biology disorder (TBD) caused by germline mutations in genes responsible for telomere maintenance including TERT. Cryptic TBD is a bone marrow failure syndrome due to premature telomere shortening but without additional symptoms, frequently clinically indistinguishable from severe aplastic anemia (SAA) or hypoplastic myelodysplastic syndrome. We present the complex diagnostic pathway in a boy with a rare germline p.Thr726Met TERT variant with previous reports of SAA association and compromised enzymatic function who presented with juvenile myelomonocytic leukemia, which is a rare myelodysplastic/myeloproliferative neoplasm of childhood.
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Affiliation(s)
- Szymon Janczar
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| | - Martin Kirschner
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, RWTH Aachen University, Aachen, Germany.,Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Aachen, Germany
| | - Fabian Beier
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, RWTH Aachen University, Aachen, Germany.,Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Aachen, Germany
| | - Tim H Brümmendorf
- Department of Hematology, Oncology, Hemostaseology and Stem Cell Transplantation, RWTH Aachen University, Aachen, Germany.,Center for Integrated Oncology Aachen Bonn Cologne Düsseldorf (CIO ABCD), Aachen, Germany
| | - Marek Ussowicz
- Department of Paediatric Bone Marrow Transplantation, Oncology and Hematology, Wroclaw Medical University, Wrocław, Poland
| | - Katarzyna Babol-Pokora
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| | - Aleksandra Oszer
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
| | - Ayami Yoshimi
- Division of Pediatric Hematology and Oncology, Medical Center, Faculty of Medicine, Department of Pediatrics and Adolescent Medicine, University of Freiburg, Freiburg, Germany
| | - Krzysztof Kalwak
- Department of Paediatric Bone Marrow Transplantation, Oncology and Hematology, Wroclaw Medical University, Wrocław, Poland
| | - Wojciech Mlynarski
- Department of Pediatrics, Oncology and Haematology, Medical University of Lodz, Lodz, Poland
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5
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Repczynska A, Pastorczak A, Babol-Pokora K, Skalska-Sadowska J, Drozniewska M, Mlynarski W, Haus O. Novel FANCA mutation in the first fully-diagnosed patient with Fanconi anemia in Polish population - case report. Mol Cytogenet 2020; 13:33. [PMID: 32793304 PMCID: PMC7418427 DOI: 10.1186/s13039-020-00503-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 07/16/2020] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Fanconi anemia is a rare genetic disorder caused by mutations in genes which protein products are involved in replication, cell cycle control and DNA repair. It is characterized by congenital malformations, bone marrow failure, and high risk of cancer. The diagnosis is based on morphological and hematological abnormalities such as pancytopenia, macrocytic anaemia and progressive bone marrow failure. Genetic examination, often very complex, includes chromosomal breakage testing and mutational analysis. CASE PRESENTATION We present a child with clinical diagnosis of Fanconi anemia. Although morphological abnormalities of skin and bones were present from birth, diagnosis was only suspected at the age of 8. Chromosome breakage test in patient's lymphocytes showed increased level of aberrations (gaps, chromatid breaks, chromosome breaks, radial figures and rearrangements) compared to control. Next generation sequencing revealed presence of two pathogenic variants in FANCA gene, one of which was not previously reported. CONCLUSIONS The article provides additional supportive evidence that compound biallelic mutations of FANCA are associated with Fanconi anemia. It also illustrates the utility of combination of cytogenetic and molecular tests, together with detailed clinical evaluation in providing accurate diagnosis of Fanconi anemia. This report, to the best of our knowledge, describes the first fully diagnosed FA patient in Polish population.
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Affiliation(s)
- Anna Repczynska
- Department of Clinical Genetics, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, ul. Sklodowskiej-Curie 9, 85-094 Bydgoszcz, Poland
| | - Agata Pastorczak
- Laboratory of Immunopathology and Genetics, Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, ul. Sporna 36/50, 91-738 Lodz, Poland
| | - Katarzyna Babol-Pokora
- Laboratory of Immunopathology and Genetics, Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, ul. Sporna 36/50, 91-738 Lodz, Poland
| | - Jolanta Skalska-Sadowska
- Department of Oncology, Hematology and Pediatric Transplantology, Medical University in Poznan, ul. Szpitalna 27/33, 60-572 Poznan, Poland
| | - Malgorzata Drozniewska
- West Midlands Regional Genetics Laboratory, Birmingham Women’s and Children’s Hospital NHS Foundation Trust, Mindelsohn Way, B15 2TG Birmingham, UK
| | - Wojciech Mlynarski
- Laboratory of Immunopathology and Genetics, Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, ul. Sporna 36/50, 91-738 Lodz, Poland
| | - Olga Haus
- Department of Clinical Genetics, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Torun, ul. Sklodowskiej-Curie 9, 85-094 Bydgoszcz, Poland
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6
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Sharapova SO, Skomska-Pawliszak M, Rodina YA, Wolska-Kuśnierz B, Dabrowska-Leonik N, Mikołuć B, Pashchenko OE, Pasic S, Freiberger T, Milota T, Formánková R, Szaflarska A, Siedlar M, Avčin T, Markelj G, Ciznar P, Kalwak K, Kołtan S, Jackowska T, Drabko K, Gagro A, Pac M, Naumova E, Kandilarova S, Babol-Pokora K, Varabyou DS, Barendregt BH, Raykina EV, Varlamova TV, Pavlova AV, Grombirikova H, Debeljak M, Mersiyanova IV, Bondarenko AV, Chernyshova LI, Kostyuchenko LV, Guseva MN, Rascon J, Muleviciene A, Preiksaitiene E, Geier CB, Leiss-Piller A, Yamazaki Y, Kawai T, Walter JE, Kondratenko IV, Šedivá A, van der Burg M, Kuzmenko NB, Notarangelo LD, Bernatowska E, Aleinikova OV. The Clinical and Genetic Spectrum of 82 Patients With RAG Deficiency Including a c.256_257delAA Founder Variant in Slavic Countries. Front Immunol 2020; 11:900. [PMID: 32655540 PMCID: PMC7325958 DOI: 10.3389/fimmu.2020.00900] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 04/20/2020] [Indexed: 11/13/2022] Open
Abstract
Background: Variants in recombination-activating genes (RAG) are common genetic causes of autosomal recessive forms of combined immunodeficiencies (CID) ranging from severe combined immunodeficiency (SCID), Omenn syndrome (OS), leaky SCID, and CID with granulomas and/or autoimmunity (CID-G/AI), and even milder presentation with antibody deficiency. Objective: We aim to estimate the incidence, clinical presentation, genetic variability, and treatment outcome with geographic distribution of patients with the RAG defects in populations inhabiting South, West, and East Slavic countries. Methods: Demographic, clinical, and laboratory data were collected from RAG-deficient patients of Slavic origin via chart review, retrospectively. Recombinase activity was determined in vitro by flow cytometry-based assay. Results: Based on the clinical and immunologic phenotype, our cohort of 82 patients from 68 families represented a wide spectrum of RAG deficiencies, including SCID (n = 20), OS (n = 37), and LS/CID (n = 25) phenotypes. Sixty-seven (81.7%) patients carried RAG1 and 15 patients (18.3%) carried RAG2 biallelic variants. We estimate that the minimal annual incidence of RAG deficiency in Slavic countries varies between 1 in 180,000 and 1 in 300,000 live births, and it may vary secondary to health care disparities in these regions. In our cohort, 70% (n = 47) of patients with RAG1 variants carried p.K86Vfs*33 (c.256_257delAA) allele, either in homozygous (n = 18, 27%) or in compound heterozygous (n = 29, 43%) form. The majority (77%) of patients with homozygous RAG1 p.K86Vfs*33 variant originated from Vistula watershed area in Central and Eastern Poland, and compound heterozygote cases were distributed among all Slavic countries except Bulgaria. Clinical and immunological presentation of homozygous RAG1 p.K86Vfs*33 cases was highly diverse (SCID, OS, and AS/CID) suggestive of strong influence of additional genetic and/or epigenetic factors in shaping the final phenotype. Conclusion: We propose that RAG1 p.K86Vfs*33 is a founder variant originating from the Vistula watershed region in Poland, which may explain a high proportion of homozygous cases from Central and Eastern Poland and the presence of the variant in all Slavs. Our studies in this cohort of RAG1 founder variants confirm that clinical and immunological phenotypes only partially depend on the underlying genetic defect. As access to HSCT is improving among RAG-deficient patients in Eastern Europe, we anticipate improvements in survival.
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Affiliation(s)
- Svetlana O Sharapova
- Research Department, Belarusian Research Center for Pediatric Oncology, Hematology and Immunology, Minsk Region, Belarus
| | | | - Yulia A Rodina
- Department of Immunology, Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | | | | | - Bozena Mikołuć
- Department of Pediatrics, Rheumatology, Immunology and Metabolic Bone Diseases, Medical University of Bialystok, Bialystok, Poland
| | - Olga E Pashchenko
- Immunology Department, Pirogov Russian National Research Medical University, Moscow, Russia
| | - Srdjan Pasic
- Pediatric Immunology, Medical Faculty, Mother and Child Health Institute, University of Belgrade, Belgrade, Serbia
| | - Tomáš Freiberger
- Centre for Cardiovascular Surgery and Transplantation, Brno, Czechia.,Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Tomáš Milota
- Department of Immunology, University Hospital Motol, Prague, Czechia.,Second Faculty of Medicine, Charles University, Prague, Czechia
| | - Renata Formánková
- Department of Pediatric Hematology and Oncology, University Hospital Motol, Prague, Czechia.,Faculty of Medicine, Charles University, Prague, Czechia
| | - Anna Szaflarska
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Maciej Siedlar
- Department of Clinical Immunology, Institute of Pediatrics, Jagiellonian University Medical College, Krakow, Poland.,Department of Clinical Immunology, University Children's Hospital, Krakow, Poland
| | - Tadej Avčin
- University Children's Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Gašper Markelj
- University Children's Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Peter Ciznar
- Pediatric Department, Faculty of Medicine, Comenius University, Bratislava, Slovakia
| | - Krzysztof Kalwak
- Department of Pediatric Hematology/Oncology and BMT, Wroclaw Medical University, Wroclaw, Poland
| | - Sylwia Kołtan
- Department of Pediatrics, Hematology and Oncology Collegium Medicum in Bydgoszcz, Bydgoszcz, Poland.,Nicolaus Copernicus University in Torun, Torun, Poland
| | - Teresa Jackowska
- Department of Pediatrics, Medical Center of Postgraduate Education, Warsaw, Poland
| | - Katarzyna Drabko
- Department of Pediatric Hematology, Oncology and Transplantology, Medical University of Lublin, Lublin, Poland
| | - Alenka Gagro
- Department of Pediatrics, School of Medicine, Zagreb Children's Hospital, University of Zagreb, Zagreb, Croatia.,Faculty of Medicine, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
| | - Małgorzata Pac
- Department of Immunology, Children's Memorial Health Institute, Warsaw, Poland
| | - Elissaveta Naumova
- Department of Clinical Immunology, University Hospital Alexandrovska, Sofia, Bulgaria
| | - Snezhina Kandilarova
- Department of Clinical Immunology, University Hospital Alexandrovska, Sofia, Bulgaria
| | - Katarzyna Babol-Pokora
- Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, Lodz, Poland
| | - Dzmitry S Varabyou
- Department of Geographical Ecology, Belarusian State University, Minsk, Belarus
| | - Barbara H Barendregt
- Department of Immunology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands
| | - Elena V Raykina
- Laboratory of Molecular Biology, Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Tatiana V Varlamova
- Laboratory of Molecular Biology, Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Anna V Pavlova
- Laboratory of Molecular Biology, Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Hana Grombirikova
- Centre for Cardiovascular Surgery and Transplantation, Brno, Czechia.,Faculty of Medicine, Masaryk University, Brno, Czechia
| | - Maruša Debeljak
- University Children's Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia.,Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Irina V Mersiyanova
- Laboratory of Molecular Biology, Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Anastasiia V Bondarenko
- Department of Pediatric Infectious Diseases and Pediatric Immunology, Shupyk National Medical Academy for Postgraduate Education, Kiev, Ukraine
| | - Liudmyla I Chernyshova
- Department of Pediatric Infectious Diseases and Pediatric Immunology, Shupyk National Medical Academy for Postgraduate Education, Kiev, Ukraine
| | - Larysa V Kostyuchenko
- Pediatric Department, West-Ukrainian Specialized Children's Medical Center, Lviv, Ukraine
| | - Marina N Guseva
- Consulting Center of Pediatric Medical Academy, St. Petersburg, Russia
| | - Jelena Rascon
- Center for Pediatric Oncology and Hematology, Vilnius University, Vilnius, Lithuania
| | - Audrone Muleviciene
- Center for Pediatric Oncology and Hematology, Vilnius University, Vilnius, Lithuania
| | - Egle Preiksaitiene
- Hematology, Oncology and Transfusion Medicine Center, Vilnius University, Vilnius, Lithuania
| | | | | | - Yasuhiro Yamazaki
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Tomoki Kawai
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Jolan E Walter
- University of South Florida at Johns Hopkins All Children's Hospital, Saint Petersburg, FL, United States.,Massachusetts General Hospital for Children, Boston, MA, United States
| | - Irina V Kondratenko
- Department of Clinical Immunology, Russian Clinical Children's Hospital by Pirogov Russian National Research Medical University, Moscow, Russia
| | - Anna Šedivá
- Department of Immunology, University Hospital Motol, Prague, Czechia.,Second Faculty of Medicine, Charles University, Prague, Czechia
| | - Mirjam van der Burg
- Department of Immunology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, Netherlands.,Department of Pediatric, Laboratory for Pediatric Immunology, Willem Alexander Children's Hospital, LUMC, Leiden, Netherlands
| | - Natalia B Kuzmenko
- Department of Epidemiology and Monitoring of Primary Immunodeficiencies, Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology, Moscow, Russia
| | - Luigi D Notarangelo
- Laboratory of Clinical Immunology and Microbiology, Division of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Ewa Bernatowska
- Department of Immunology, Children's Memorial Health Institute, Warsaw, Poland
| | - Olga V Aleinikova
- Research Department, Belarusian Research Center for Pediatric Oncology, Hematology and Immunology, Minsk Region, Belarus
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7
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Janczar S, Babol-Pokora K, Jatczak-Pawlik I, Taha J, Klukowska A, Laguna P, Windyga J, Odnoczko E, Zdziarska J, Iwaniec T, Koltan A, Jamrozik M, Rurańska I, Janczar K, Szczepański T, Pietrys D, Balwierz W, Treliński J, Mlynarski W. Six molecular patterns leading to hemophilia A phenotype in 18 females from Poland. Thromb Res 2020; 193:9-14. [PMID: 32497951 DOI: 10.1016/j.thromres.2020.05.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 04/12/2020] [Accepted: 05/26/2020] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Female hemophilia is an intriguing rare disorder and few larger reports on its genetic etiology are available. While historically the diagnosis was satisfactorily reached by factor VIII activity assays, the clinical and potentially therapeutic heterogeneity of female hemophilia calls for comprehensive molecular diagnosis in each case. Currently, the genetic investigations are not a part of routine, state-funded, diagnostics in Poland, and thus molecular epidemiological data are missing. AIM We set out to perform a comprehensive genetic analysis of Polish females with hemophilia A. PATIENTS/METHODS Eighteen females with hemophilia A (including 2 with severe and 5 with moderate hemophilia phenotype) consented for genetic diagnostics. To establish F8 mutations, we used next-generation sequencing of a panel of genes associated with hematological disorders, standard assays for recurrent intragenic F8 inversions and MLPA when deletions were suspected. When appropriate we also used karyotyping, genomic microarrays and X chromosome inactivation assays. RESULTS While abnormally skewed X-chromosome inactivation combined with a F8 variant on the active allele was, as expected, the most common genetic etiology, a number of other genetic scenarios were unraveled. This included: misdiagnosis (molecular diagnosis of vWd), Turner syndrome, compound heterozygosity and androgen insensitivity syndrome (a phenotypical 46,XY female with a novel androgen receptor gene mutation). We report 3 novel F8 mutations. CONCLUSION Every case of female hemophilia warrants full genomic diagnostics, as this may change the diagnosis or reveal broader morbidity than a coagulation disorder (Turner syndrome, androgen insensitivity, or cardiovascular morbidity that we described previously in a SHAM syndrome carrier).
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Affiliation(s)
- Szymon Janczar
- Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, Poland.
| | | | | | - Joanna Taha
- Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, Poland
| | - Anna Klukowska
- Department of Pediatrics, Hematology and Oncology, Warsaw Medical University, Poland
| | - Pawel Laguna
- Department of Pediatrics, Hematology and Oncology, Warsaw Medical University, Poland
| | - Jerzy Windyga
- Institute of Hematology and Transfusion Medicine in Warsaw, Poland
| | - Edyta Odnoczko
- Institute of Hematology and Transfusion Medicine in Warsaw, Poland
| | - Joanna Zdziarska
- Department of Hematology, Jagiellonian University, Krakow, Poland
| | - Teresa Iwaniec
- Department of Hematology, Jagiellonian University, Krakow, Poland
| | - Andrzej Koltan
- Department of Pediatrics, Hematology and Oncology, Nicolaus Copernicus University in Torun, Collegium Medicum in Bydgoszcz, Poland
| | - Michał Jamrozik
- Department of Hematology and Bone Marrow Transplantation, Medical University of Silesia, Katowice, Poland
| | - Iwona Rurańska
- Department of Pediatric Hematology and Oncology, Zabrze, Medical University of Silesia, Katowice, Poland
| | | | - Tomasz Szczepański
- Department of Pediatric Hematology and Oncology, Zabrze, Medical University of Silesia, Katowice, Poland
| | - Danuta Pietrys
- Department of Pediatric Oncology and Hematology, University Childrens' Hospital of Krakow, Poland
| | - Walentyna Balwierz
- Department of Pediatric Oncology and Hematology, University Childrens' Hospital of Krakow, Poland; Institute of Pediatrics, Jagiellonian University - Medical College, Krakow, Poland
| | - Jacek Treliński
- Department of Hemostasis, Medical University of Lodz, Poland
| | - Wojciech Mlynarski
- Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, Poland
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8
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Janczar S, Babol-Pokora K, Jatczak-Pawlik I, Windyga J, Odnoczko E, Madetko-Talowska A, Sadowska B, Zdziarska J, Iwaniec T, Pietrys D, Balwierz W, Gazda HT, Ploski R, Mlynarski W. Puzzling outcome of the nationwide genetic survey of severe/moderate female haemophilia B in Poland. Haemophilia 2019; 25:e373-e376. [PMID: 31577376 DOI: 10.1111/hae.13854] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/08/2019] [Accepted: 09/06/2019] [Indexed: 11/29/2022]
Affiliation(s)
- Szymon Janczar
- Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, Lodz, Poland
| | - Katarzyna Babol-Pokora
- Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, Lodz, Poland
| | - Izabela Jatczak-Pawlik
- Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, Lodz, Poland
| | - Jerzy Windyga
- Institute of Haematology and Transfusion Medicine in Warsaw, Warsaw, Poland
| | - Edyta Odnoczko
- Institute of Haematology and Transfusion Medicine in Warsaw, Warsaw, Poland
| | - Anna Madetko-Talowska
- Department of Medical Genetics, Faculty of Medicine, Jagiellonian University Medical College, Krakow, Poland
| | - Beata Sadowska
- Laboratory of Cytogenetics and Molecular Genetics, University Children's Hospital in Krakow, Krakow, Poland
| | - Joanna Zdziarska
- Department of Hematology, Jagiellonian University, Krakow, Poland
| | - Teresa Iwaniec
- Department of Hematology, Jagiellonian University, Krakow, Poland
| | - Danuta Pietrys
- Department of Pediatric Oncology and Hematology, University Children's Hospital of Krakow, Krakow, Poland
| | - Walentyna Balwierz
- Department of Pediatric Oncology and Hematology, University Children's Hospital of Krakow, Krakow, Poland.,Institute of Pediatrics, Jagiellonian University-Medical College, Krakow, Poland
| | - Hanna T Gazda
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Division of Genetics and Genomics, The Manton Center for Orphan Disease Research, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - Rafal Ploski
- Department of Medical Genetics, Warsaw Medical University, Warsaw, Poland
| | - Wojciech Mlynarski
- Department of Pediatrics, Oncology and Hematology, Medical University of Lodz, Lodz, Poland
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9
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Debska E, Nowakowski PA, Jacewicz R, Babol-Pokora K, Prośniak A, Jedrzejczyk M, Berent J. [Genetic analysis of human remains exhumed during archaeological excavations on former military training ground Brus in Lodz]. Arch Med Sadowej Kryminol 2013; 63:99-108. [PMID: 24261260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
The aim of this study was the genetic identification of Nazi repression victims. Human remains were found in 2011 in the area of former military training ground BRUS in Lodz. Genetic tests were performed upon the request of the Departmental Commission for the Prosecution of Crimes against the Polish Nation of the Institute of National Remembrance in Lodz. The research material was provided by the Institute of Archaeology (University of Lodz). It consisted of bones and teeth which were exhumed from mass Grave No 7. As a reference material we used a buccal swab collected from the putative son of one of the victims. Genomic DNA was extracted from the skeletal samples using the PrepFiler BTA Forensic DNA Extraction Kit. DNA was amplified using the AmpFlSTR Identifiler Plus PCR Amplification Kit and analyzed using an AB 3500 genetic analyzer. The obtained results showed 12 male genetic profiles. The analysis excluded paternity of 10 investigated victims. The genetic data of the remaining samples did not allow for paternity settlement.
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10
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Jacewicz R, Krajewski P, Ulewicz D, Piatek J, Jedrzejczyk M, Babol-Pokora K, Prośniak A, Konarzewska M, Ossowski A, Parafiniuk M, Berent J. [Y-STR Poland--a database for evaluation of evidence value in forensic genetics]. Arch Med Sadowej Kryminol 2011; 61:146-152. [PMID: 22390128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023] Open
Abstract
The "Y-STR Poland" is a multicenter project, the aim of which is the construction of a widely available database of Y chromosome haplotypes determined in the Polish population in a range of sixteen loci in AmpFISTR Y-filer system. The database will be regularly updated and it will be used in assessment of evidence value in forensic genetics. The starting base "Y-STR Poland" contains 1600 Y-STR haplotypes and encompasses data collected in Lodz (two independent centers), Warsaw and Szczecin regions. The present report contains as an attachment the data in an Excel-type file, which serves as a tool in frequency determination of a given Y haplotype in the Polish population. The file will be updated on a regular basis along with updating the database, and will be freely available from www.genetyka-sadowa.pl.
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Affiliation(s)
- Renata Jacewicz
- Z Katedry i Zakładu Medycyny Sadowej Uniwersytetu Medycznego w Łodzi.
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11
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Babol-Pokora K, Prośniak A, Jacewicz R, Berent J. [The usefulness of SNP markers for analyses of highly degraded biological materials]. Arch Med Sadowej Kryminol 2009; 59:118-123. [PMID: 20073261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023] Open
Abstract
The most common cause of problems associated with analyzing DNA extracted from forensic samples is their high level of degradation. Such difficulties are caused by the fact that STR markers have too large amplicon sizes to be amplified in degraded DNA samples. Thus, it is necessary to employ more efficient markers for analyzing evidential samples. SNPs are ideal tools for such purposes, for the SNP genotyping method does not require large amplicon size, and thus increases the possibility of amplifying degraded DNA samples. Although single SNP is not polymorphic enough, we can obtain sufficient results by examining several SNPs. The aim of this study was to examine the usefulness of the SNP-pentaplex (rs2294067, rs2282160, rs2070764, rs2277216, rs1063739) for forensic applications by analysing several forensic cases, which were impossible to solve in a range of STR markers because of highly degraded DNA. DNA fragments were amplified in one multiplex PCR reaction, which contained 5 primer pairs. SNPs were subsequently identified in a minisequencing reaction and gel electrophoresis in an ABI Prism 377 Sequencer. The research confirmed the usefulness of SNP-pentaplex for forensic applications. Despite employing mainly degraded and low copy number DNA, full genetic profiles were obtained in almost every sample. Although the discrimination power of SNP-pentaplex is not sufficient for obtaining adequate evidential value, it seems to be an ideal screening method for forensic applications.
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Abstract
SNP-minisequencing has become common in forensic genetics, especially for analysing degraded or low copy number DNA (LCN DNA). The aim of this study was to examine the usefulness of five SNP (single nucleotide polymorphism) markers for analyzing degraded and LCN DNA recovered from archival samples. DNA extractions of eight formalin-fixed paraffin-embedded (FFPE) tissues were performed and DNA fragments were amplified in one multiplex PCR (polymerase chain reaction). SNPs were identified in a minisequencing reaction and a gel electrophoresis in ABI Prism 377 Sequencer. The research confirmed the usefulness of SNP-minisequencing for analysing FFPE tissues.
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13
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Babol-Pokora K, Berent J. SNP-minisequencing as an excellent tool for analysing degraded DNA recovered from archival tissues. Acta Biochim Pol 2008; 55:815-819. [PMID: 18985176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2008] [Revised: 07/08/2008] [Accepted: 10/08/2008] [Indexed: 05/27/2023]
Abstract
SNP-minisequencing has become common in forensic genetics, especially for analysing degraded or low copy number DNA (LCN DNA). The aim of this study was to examine the usefulness of five SNP (single nucleotide polymorphism) markers for analyzing degraded and LCN DNA recovered from archival samples. DNA extractions of eight formalin-fixed paraffin-embedded (FFPE) tissues were performed and DNA fragments were amplified in one multiplex PCR (polymerase chain reaction). SNPs were identified in a minisequencing reaction and a gel electrophoresis in ABI Prism 377 Sequencer. The research confirmed the usefulness of SNP-minisequencing for analysing FFPE tissues.
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14
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Babol-Pokora K, Prośniak A, Jacewicz R, Berent J. [The central Poland population database of 500 SNP alleles]. Arch Med Sadowej Kryminol 2008; 58:27-31. [PMID: 18767499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023] Open
Abstract
SNP analysis is one of the most contemporary methods for personal identification in forensic genetics. It is increasingly more frequently used in forensic practice, especially for analyses of highly degraded DNA samples from crime scenes and thus it requires suitable population data. The aim of this study was to develop a central Poland population database consisting of 500 alleles in a range of 5 SNP biallelic loci (rs2294067, rs2282160, rs2070764, rs2277216, rs1063739). DNA fragments were amplified in one multiplex PCR reaction and SNPs were identified in a minisequencing reaction. The combined PD of the pentaplex was 0.9907147657. This makes the pentaplex a good screening method for forensic applications.
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15
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Jacewicz R, Jedrzejczyk M, Babol-Pokora K, Piatek J, Ossowski A, Berent J. [The utility of the 16 Y-STRS markers in the central Poland population]. Ann Acad Med Stetin 2007; 53 Suppl 2:95-101. [PMID: 20143689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Haplotype and allele frequencies for the panel of 16 Y-chromosome STR loci, namely DYS19, DYS385, DYS389I, DYS389II, DYS390, DYS391, DYS392, DYS393, DYS437, DYS438, DYS439, DYS448, DYS456, DYS458, DYS635 and Y GATA-H4 were determined in a population sample of 250 unrelated males from the central region of Poland. The 238 different haplotypes were identified, of which 227 haplotypes were unique, 10 were duplicated and one haplotype was shared between three unrelated men. The average gene diversity was 0.5995, combined gene diversity was 0.9998 and probability that two randomly chosen haplotypes are different in the population was 0.9996. Interpopulation comparisons revealed that Polish population is homogeneous within the three compared samples, while it differs statistically significantly from other population samples apart from Spanish population. This seems to be the first report showing the analysis of the molecular genetic distance between the population of Poland and other European and world populations for the panel of 16 Y-chromosome STR loci. The analyzed set of Y-STR markers is very useful in forensic casework to identify males and trace paternal lineages.
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Affiliation(s)
- Renata Jacewicz
- Pracownia Genetyki Sadowej Katedry i Zakładu Medycyny Sadowej Uniwersytetu Medycznego w Lodzi, ul. Sedziowska 18 a, 91-304 Łódź
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16
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Babol-Pokora K, Prośniak A, Jacewicz R, Berent J. [SNP pentaplex--the allele frequency database of central Poland population]. Arch Med Sadowej Kryminol 2006; 56:228-31. [PMID: 17249369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023] Open
Abstract
SNP analysis is among the most contemporary method for personal identification in forensic genetics, especially in analyses of untypical cases and in studies of degraded DNA samples from crime scenes. This paper shows the results of Central Poland population studies carried out using minisequencing and SNP-pentaplex, which contains 5 biallelic loci rs2294067, rs2282160, rs2070764, rs2277216 and rs1063739. DNA fragments were amplified in one multiplex PCR reaction and SNPs were identified by the minisequencing method. The combined PD was 0.9895253125, which makes the pentaplex useful for forensic applications.
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17
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Prośniak A, Gloc E, Berent J, Babol-Pokora K, Jacewicz R, Szram S. [Estimating the efficiency of DNA isolation methods in semen, blood and saliva stains using the QuantiBlot system]. Arch Med Sadowej Kryminol 2006; 56:19-23. [PMID: 16708611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/09/2023] Open
Abstract
The aim of this study was to compare and select the optimal method of DNA isolation from blood, semen and saliva stains, as well as to determine appropriate conditions for employing amplification kits for identification of individual persons [brak w polskim tekście]. The materials analyzed in this study consisted of stains of blood, semen and saliva samples stored for a year, and stains of blood stored for a month. Seven various methods of isolation were compared: the Fast DNA kit (Qbiogene), phenol/chloroform extraction, Sherlock (DNA II Gdansk), Dneasy (Qiagen), Wizard Genomic Purification Kit (Promega), Chelex 100 (Biorad) and salting out proteins method. After the isolation, the quantity of DNA was measured with QuantiBlot [brak w polskim tekście]. The highest DNA concentration in bloodstains stored for one year and one month was observed employing the salting out proteins method. The phenol-chloroform extraction method was also found to produce reasonably good results. Isolation from blood and semen with salting-out method appeared to be the most effective. The phenol/chloroform method was dependent on the age and origin of the materials [brak w polskim tekście]. The Sherlock kit was proven to be effective in blood samples stored for one year. DNA concentration values obtained in semen and saliva samples were very low and characterized by a low repeatability.
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