title: Preimplantation genetic diagnosis for inherited breast cancer: first clinical application and live birth in Spain.
abstract: Carriers of a mutation in BRCA1/2 genes confront a high lifetime risk of breast and ovarian cancer and fifty percent probability of passing the mutation to their offspring. Current options for risk management influence childbearing decisions. The indications for preimplantation genetic diagnosis (PGD) have now been expanded to include predisposition for single-gene, late-onset cancer but few cases have been reported to date despite the favorable opinion among professionals and carriers. A 28-year-old BRCA1 mutation carrier (5273G>A in exon 19) with a strong maternal history of breast cancer and 2 years of infertility decided to pursue PGD to have a healthy descendent after an accurate assessment of her reproductive options. The procedure was approved by the national regulation authority and a PGD cycle was initiated. Four out of 6 embryos harbored the mutation. The two unaffected embryos were implanted in the uterus. A singleton pregnancy was achieved and a male baby was delivered at term. Consented umbilical cord blood testing confirmed the accuracy of the technique. Individualized PGD for inherited breast predisposition is feasible in the context of a multidisciplinary team.
authors.affiliation: Medical Oncology Department, Sant Pau Hospital, Barcelona, Spain. tramon@santpau.cat
authors.forename: Teresa
authors.initials: T
authors.lastname: Ramón Y Cajal
authors.forename: Ana
authors.initials: A
authors.lastname: Polo
authors.forename: Olga
authors.initials: O
authors.lastname: Martínez
authors.forename: Carles
authors.initials: C
authors.lastname: Giménez
authors.forename: César
authors.initials: C
authors.lastname: Arjona
authors.forename: Gemma
authors.initials: G
authors.lastname: Llort
authors.forename: Lluís
authors.initials: L
authors.lastname: Bassas
authors.forename: Pere
authors.initials: P
authors.lastname: Viscasillas
authors.forename: Joaquin
authors.initials: J
authors.lastname: Calaf
mesh_terms: D000328:Adult; D019313:BRCA1 Protein / Q000235:genetics*; D001943:Breast Neoplasms / Q000235:genetics*; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D007231:Infant, Newborn; D050498:Live Birth / Q000235:genetics; D008297:Male; D009154:Mutation; D011247:Pregnancy; D019836:Preimplantation Diagnosis
chemical_list: D019313:BRCA1 Protein; C492913:BRCA1 protein, human