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Mittal V, Myrand S, Cyanam D, Williams P, Bee G, Marcovitz A, Gottimukkala R, Hyland F, Allen C, Wong-Ho E, Sadis S, Van Loy C, Kilzer J, Khazanov N. Development of a comprehensive next-generation targeted sequencing assay for detection of gene-fusions in solid tumors. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz268.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Mei-Zahav M, Stafler P, Senderowitz H, Bentur L, Livnat G, Shteinberg M, Orenstein N, Bazak L, Prais D, Levine H, Gur M, Khazanov N, Simhaev L, Eliyahu H, Cohen M, Wilschanski M, Blau H, Mussaffi H. The Q359K/T360K mutation causes cystic fibrosis in Georgian Jews. J Cyst Fibros 2018; 17:e41-e45. [PMID: 30033373 DOI: 10.1016/j.jcf.2018.06.008] [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] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 06/20/2018] [Accepted: 06/20/2018] [Indexed: 10/28/2022]
Abstract
BACKGROUND The Q359K/T360K mutation, described in Jewish CF patients of Georgian decent, is of questionable clinical significance. METHODS Clinical records of patients with the Q359K/T360K mutation from three CF centers were studied for phenotypic expression and putative mechanism of dysfunction. Computer models of mutant CFTR were constructed. RESULTS Nine patients (4 homozygous) of Georgian Jewish origin were included. Age at diagnosis was 9.4 (0.25-38.2) years, median (range). Sweat chloride was 106 ± 13 meq/L, mean ± SD. Nasal Potential Difference performed in three, was abnormal. All had pulmonary symptoms since early childhood and bronchiectasis. Median FEV1 was 88 (40-121)%. Five had chronic mucoid P. aeruginosa. Homozygous patients were pancreatic insufficient. Enzyme supplementation was initiated at 3.8 (1-14.7) years, median (range). Structural models hint at possible interference of this mutation with transmembrane chloride transport. CONCLUSION In our cohort, the Q359K/T360K mutation resulted in a severe CF phenotype, although with residual early CFTR function. The CFTR2 database should consider defining this mutation as CF-causing.
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Affiliation(s)
- M Mei-Zahav
- Kathy and Lee Graub Cystic Fibrosis Center and Pulmonary Unit, Schneider Children's Medical Center of Israel, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - P Stafler
- Kathy and Lee Graub Cystic Fibrosis Center and Pulmonary Unit, Schneider Children's Medical Center of Israel, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - H Senderowitz
- Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel
| | - L Bentur
- Pediatric Pulmonary Institute, Ruth Rappaport Children's Hospital, Rambam health Care Campus, Israel; Rappaport Faculty of Medicine, Technion - Institute of Technology, Haifa, Israel
| | - G Livnat
- Rappaport Faculty of Medicine, Technion - Institute of Technology, Haifa, Israel; Cystic Fibrosis Center, Carmel Hospital, Israel
| | - M Shteinberg
- Rappaport Faculty of Medicine, Technion - Institute of Technology, Haifa, Israel; Cystic Fibrosis Center, Carmel Hospital, Israel
| | - N Orenstein
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Raphael Recanati Genetics Institute, Rabin Medical Center, Beilinson Campus, Petah Tikva, Israel
| | - L Bazak
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel; Raphael Recanati Genetics Institute, Rabin Medical Center, Beilinson Campus, Petah Tikva, Israel
| | - D Prais
- Kathy and Lee Graub Cystic Fibrosis Center and Pulmonary Unit, Schneider Children's Medical Center of Israel, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - H Levine
- Kathy and Lee Graub Cystic Fibrosis Center and Pulmonary Unit, Schneider Children's Medical Center of Israel, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - M Gur
- Pediatric Pulmonary Institute, Ruth Rappaport Children's Hospital, Rambam health Care Campus, Israel
| | - N Khazanov
- Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel
| | - L Simhaev
- Department of Chemistry, Bar-Ilan University, Ramat-Gan, Israel
| | - H Eliyahu
- Electrophysiology Laboratory, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - M Cohen
- Electrophysiology Laboratory, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - M Wilschanski
- Electrophysiology Laboratory, Hadassah Hebrew University Medical Center, Jerusalem, Israel
| | - H Blau
- Kathy and Lee Graub Cystic Fibrosis Center and Pulmonary Unit, Schneider Children's Medical Center of Israel, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - H Mussaffi
- Kathy and Lee Graub Cystic Fibrosis Center and Pulmonary Unit, Schneider Children's Medical Center of Israel, Petah Tikva, Israel; Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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