GUIDELINES FOR GENETIC COUNSELLING AND TESTING FOR HEREDITARY BREAST AND OVARIAN CANCER

Tijekom posljednjih desetljeća svjedoci smo velikog napretka u izvedivosti i kliničkoj iskoristivosti genetičkog testiranja kod nasljednih karcinoma. Nasljedni karcinomi dojke i jajnika najčešće su posljedica mutacija u genima BRCA1 i BRCA2. Ovim smjernicama obuhvatili smo kriterije za upućivanje pacijenata na genetičko savjetovanje i testiranje; kriterije za upućivanje zdravih pojedinaca na prediktivno testiranje ako nije moguće testiranje oboljelog člana obitelji; postupak genetičkog savjetovanja prije i nakon testiranja; nalaz testiranja, kategorije nalaza i razine rizika; preporuke za daljnje praćenje osoba s povišenim rizikom; kemoprevenciju i profilaktičku kirurgiju kod nositelja/-ica patogenih mutacija gena BRCA 1 i BRCA 2; očuvanje reproduktivne funkcije u žena oboljelih od raka dojke i nositeljica mutacija BRCA i pristanak informiranog bolesnika na genetičko testiranje. Smjernice su namijenjene svim specijalistima koji su na bilo koji način uključeni u zbrinjavanje oboljelih od nasljednih karcinoma dojke i jajnika, a sastavila ih je radna skupina prema podacima iz relevantne medicinske literature te kliničkim iskustvima članova radne skupine.The last few decades have witnessed a great progress in feasibility and clinical utilization of genetic testing for hereditary cancers. Hereditary breast and ovarian cancers are most often the result of BRCA1 and BRCA2 gene mutations. In these guidelines we have covered: the criteria for referral of patients to genetic counselling and testing; the criteria for referral of healthy family members to predictive testing in the event when there is no possibility of testing the patient; the process of genetic counselling before and after testing; test results, their categories and risk levels; recommendations for monitoring of individuals with an increased risk; chemoprevention and prophylactic surgery for carriers of BRCA1 and BRCA2 gene mutations; preservation of reproductive function in women with breast cancer and in carriers of BRCA mutations; and informed consent for genetic testing. The guidelines are intended for all specialists who are in any way involved in the care of patients with hereditary breast and ovarian cancer, and are compiled by the working group according to the data from the relevant medical literature and from clinical experience of the members of the working group

Smjernice za genetičko savjetovanje i testiranje na nasljedni rak dojke i jajnika [Guidelines for genetic counselling and testing for hereditary breast and ovarian cancer]

The last few decades have witnessed a great progress in feasibility and clinical utilization of genetic testing for hereditary cancers. Hereditary breast and ovarian cancers are most often the result of BRCA1 and BRCA2 gene mutations. In these guidelines we have covered: the criteria for referral of patients to genetic counselling and testing; the criteria for referral of healthy family members to predictive testing in the event when there is no possibility of testing the patient; the process of genetic counselling before and after testing; test results, their categories and risk levels; recommendations for monitoring of individuals with an increased risk; chemoprevention and prophylactic surgery for carriers of BRCA1 and BRCA2 gene mutations; preservation of reproductive function in women with breast cancer and in carriers of BRCA mutations; and informed consent for genetic testing. The guidelines are intended for all specialists who are in any way involved in the care of patients with hereditary breast and ovarian cancer, and are compiled by the working group according to the data from the relevant medical literature and from clinical experience of the members of the working group

GUIDELINES FOR GENETIC COUNSELLING AND TESTING FOR HEREDITARY BREAST AND OVARIAN CANCER

Tijekom posljednjih desetljeća svjedoci smo velikog napretka u izvedivosti i kliničkoj iskoristivosti genetičkog testiranja kod nasljednih karcinoma. Nasljedni karcinomi dojke i jajnika najčešće su posljedica mutacija u genima BRCA1 i BRCA2. Ovim smjernicama obuhvatili smo kriterije za upućivanje pacijenata na genetičko savjetovanje i testiranje; kriterije za upućivanje zdravih pojedinaca na prediktivno testiranje ako nije moguće testiranje oboljelog člana obitelji; postupak genetičkog savjetovanja prije i nakon testiranja; nalaz testiranja, kategorije nalaza i razine rizika; preporuke za daljnje praćenje osoba s povišenim rizikom; kemoprevenciju i profilaktičku kirurgiju kod nositelja/-ica patogenih mutacija gena BRCA 1 i BRCA 2; očuvanje reproduktivne funkcije u žena oboljelih od raka dojke i nositeljica mutacija BRCA i pristanak informiranog bolesnika na genetičko testiranje. Smjernice su namijenjene svim specijalistima koji su na bilo koji način uključeni u zbrinjavanje oboljelih od nasljednih karcinoma dojke i jajnika, a sastavila ih je radna skupina prema podacima iz relevantne medicinske literature te kliničkim iskustvima članova radne skupine.The last few decades have witnessed a great progress in feasibility and clinical utilization of genetic testing for hereditary cancers. Hereditary breast and ovarian cancers are most often the result of BRCA1 and BRCA2 gene mutations. In these guidelines we have covered: the criteria for referral of patients to genetic counselling and testing; the criteria for referral of healthy family members to predictive testing in the event when there is no possibility of testing the patient; the process of genetic counselling before and after testing; test results, their categories and risk levels; recommendations for monitoring of individuals with an increased risk; chemoprevention and prophylactic surgery for carriers of BRCA1 and BRCA2 gene mutations; preservation of reproductive function in women with breast cancer and in carriers of BRCA mutations; and informed consent for genetic testing. The guidelines are intended for all specialists who are in any way involved in the care of patients with hereditary breast and ovarian cancer, and are compiled by the working group according to the data from the relevant medical literature and from clinical experience of the members of the working group

Characterization of lamin Mutation Phenotypes in Drosophila and Comparison to Human Laminopathies

Lamins are intermediate filament proteins that make up the nuclear lamina, a matrix underlying the nuclear membrane in all metazoan cells that is important for nuclear form and function. Vertebrate A-type lamins are expressed in differentiating cells, while B-type lamins are expressed ubiquitously. Drosophila has two lamin genes that are expressed in A- and B-type patterns, and it is assumed that similarly expressed lamins perform similar functions. However, Drosophila and vertebrate lamins are not orthologous, and their expression patterns evolved independently. It is therefore of interest to examine the effects of mutations in lamin genes. Mutations in the mammalian lamin A/C gene cause a range of diseases, collectively called laminopathies, that include muscular dystrophies and premature aging disorders. We compared the sequences of lamin genes from different species, and we have characterized larval and adult phenotypes in Drosophila bearing mutations in the lam gene that is expressed in the B-type pattern. Larvae move less and show subtle muscle defects, and surviving lam adults are flightless and walk like aged wild-type flies, suggesting that lam phenotypes might result from neuromuscular defects, premature aging, or both. The resemblance of Drosophila lam phenotypes to human laminopathies suggests that some lamin functions may be performed by differently expressed genes in flies and mammals. Such still-unknown functions thus would not be dependent on lamin gene expression pattern, suggesting the presence of other lamin functions that are expression dependent. Our results illustrate a complex interplay between lamin gene expression and function through evolution