Blood Lead Level as Marker of Increased Risk of Ovarian Cancer in BRCA1 Carriers

Author:

Kiljańczyk Adam1,Matuszczak Milena1ORCID,Marciniak Wojciech2ORCID,Derkacz Róża2ORCID,Stempa Klaudia1,Baszuk Piotr12ORCID,Bryśkiewicz Marta12,Lubiński Krzysztof1,Cybulski Cezary12,Dębniak Tadeusz12ORCID,Gronwald Jacek12ORCID,Huzarski Tomasz123,Lener Marcin R.1,Jakubowska Anna1ORCID,Szwiec Marek4ORCID,Stawicka-Niełacna Małgorzata3ORCID,Godlewski Dariusz5,Prusaczyk Artur6,Jasiewicz Andrzej7ORCID,Kluz Tomasz8ORCID,Tomiczek-Szwiec Joanna9ORCID,Kilar-Kobierzycka Ewa10,Siołek Monika11,Wiśniowski Rafał12,Posmyk Renata13,Jarkiewicz-Tretyn Joanna14,Sun Ping15,Scott Rodney J.16ORCID,Narod Steven A.15ORCID,Lubiński Jan12ORCID

Affiliation:

1. Department of Genetics and Pathology, International Hereditary Cancer Center, Pomeranian Medical University, ul. Unii Lubelskiej 1, 71-252 Szczecin, Poland

2. Read-Gene, Grzepnica, ul. Alabastrowa 8, 72-003 Dobra, Poland

3. Department of Clinical Genetics and Pathology, University of Zielona Góra, ul. Zyty 28, 65-046 Zielona Góra, Poland

4. Department of Surgery and Oncology, University of Zielona Góra, Zyty 28, 65-046 Zielona Góra, Poland

5. OPEN, Kazimierza Wielkiego 24 Str., 61-863 Poznań, Poland

6. Medical and Diagnostic Center, Niklinowa 9, 08-110 Siedlce, Poland

7. Genetic Counseling Center, Subcarpatian Oncological Hospital, 18 Bielawskiego Str., 36-200 Brzozów, Poland

8. Department of Gynecology, Gynecology Oncology and Obstetrics, Institute of Medical Sciences, Medical College, Rzeszow University, Rejtana 16c, 35-959 Rzeszow, Poland

9. Department of Histology, Department of Biology and Genetics, Faculty of Medicine, University of Opole, 45-040 Opole, Poland

10. Department of Oncology, District Specialist Hospital, Leśna 27-29 Str., 58-100 Świdnica, Poland

11. Holycross Cancer Center, Artwińskiego 3 Str., 25-734 Kielce, Poland

12. Regional Oncology Hospital, Wyzwolenia 18 Str., 43-300 Bielsko Biała, Poland

13. Department of Clinical Genetics, Podlaskie Medical Center, 15-399 Bialystok, Poland

14. Non-Public Health Care Centre, Cancer Genetics Laboratory, 87-100 Toruń, Poland

15. Women’s College Research Institute, Women’s College Hospital, University of Toronto, Toronto, ON M5G 1N8, Canada

16. Medical Genetics, Hunter Medical Research Institute, Priority Research Centre for Cancer Research, Innovation and Translation, School of Biomedical Sciences and Pharmacy, Faculty of Health and Medicine, University of Newcastle, Pathology North, John Hunter Hospital, King and Auckland Streets, Newcastle, NSW 2300, Australia

Abstract

BRCA1 mutations substantially elevate the risks of breast and ovarian cancer. Various modifiers, including environmental factors, can influence cancer risk. Lead, a known carcinogen, has been associated with various cancers, but its impact on BRCA1 carriers remains unexplored. A cohort of 989 BRCA1 mutation carriers underwent genetic testing at the Pomeranian Medical University, Poland. Blood lead levels were measured using inductively coupled plasma mass spectrometry. Each subject was assigned to a category based on their tertile of blood lead. Cox regression analysis was used to assess cancer risk associations. Elevated blood lead levels (>13.6 μg/L) were associated with an increased risk of ovarian cancer (univariable: HR = 3.33; 95% CI: 1.23–9.00; p = 0.02; multivariable: HR = 2.10; 95% CI: 0.73–6.01; p = 0.17). No significant correlation was found with breast cancer risk. High blood lead levels are associated with increased risk of ovarian cancer in BRCA1 carriers, suggesting priority for preventive salpingo-oophorectomy. Potential risk reduction strategies include detoxification. Validation in diverse populations and exploration of detoxification methods for lowering lead levels are required.

Funder

Minister of Science and Higher Education

Publisher

MDPI AG

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