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Hollmén M, Laaka A, Partanen JJ, Koskela J, Sutinen E, Kaarteenaho R, Ainola M, Myllärniemi M. KIF15 missense variant is associated with the early onset of idiopathic pulmonary fibrosis. Respir Res 2023; 24:240. [PMID: 37777755 PMCID: PMC10543873 DOI: 10.1186/s12931-023-02540-0] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 09/15/2023] [Indexed: 10/02/2023] Open
Abstract
BACKGROUND Idiopathic pulmonary fibrosis (IPF) has an unknown aetiology and limited treatment options. A recent meta-analysis identified three novel causal variants in the TERT, SPDL1, and KIF15 genes. This observational study aimed to investigate whether the aforementioned variants cause clinical phenotypes in a well-characterised IPF cohort. METHODS The study consisted of 138 patients with IPF who were diagnosed and treated at the Helsinki University Hospital and genotyped in the FinnGen FinnIPF study. Data on > 25 clinical parameters were collected by two pulmonologists who were blinded to the genetic data for patients with TERT loss of function and missense variants, SPDL1 and KIF15 missense variants, and a MUC5B variant commonly present in patients with IPF, or no variants were separately analysed. RESULTS The KIF15 missense variant is associated with the early onset of the disease, leading to progression to early-age transplantation or death. In patients with the KIF15 variant, the median age at diagnosis was 54.0 years (36.5-69.5 years) compared with 72.0 years (65.8-75.3 years) in the other patients (P = 0.023). The proportion of KIF15 variant carriers was 9- or 3.6-fold higher in patients aged < 55 or 65 years, respectively. The variants for TERT and MUC5B had similar effects on the patient's clinical course, as previously described. No distinct phenotypes were observed in patients with the SPDL1 variant. CONCLUSIONS Our study indicated the potential of KIF15 to be used in the genetic diagnostics of IPF. Further studies are needed to elucidate the biological mechanisms of KIF15 in IPF.
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Affiliation(s)
- Maria Hollmén
- Individrug, Heart and Lung Centre, The University of Helsinki and Helsinki University Hospital, Research Programs Unit, Helsinki, Finland
| | - Atte Laaka
- Individrug, Heart and Lung Centre, The University of Helsinki and Helsinki University Hospital, Research Programs Unit, Helsinki, Finland
| | - Juulia J. Partanen
- Institute for Molecular Medicine Finland (FIMM), Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland
| | - Jukka Koskela
- Institute for Molecular Medicine Finland (FIMM), Helsinki Institute of Life Science (HiLIFE), University of Helsinki, Helsinki, Finland
| | - Eva Sutinen
- Individrug, Heart and Lung Centre, The University of Helsinki and Helsinki University Hospital, Research Programs Unit, Helsinki, Finland
| | - Riitta Kaarteenaho
- Research Unit of Biomedicine and Internal Medicine, University of Oulu and Oulu University Hospital, Oulu, Finland
| | - Mari Ainola
- Individrug, Heart and Lung Centre, The University of Helsinki and Helsinki University Hospital, Research Programs Unit, Helsinki, Finland
| | - Marjukka Myllärniemi
- Individrug, Heart and Lung Centre, The University of Helsinki and Helsinki University Hospital, Research Programs Unit, Helsinki, Finland
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Lundin K, Sepponen K, Väyrynen P, Liu X, Yohannes DA, Survila M, Ghimire B, Känsäkoski J, Katayama S, Partanen J, Vuoristo S, Paloviita P, Rahman N, Raivio T, Luiro K, Huhtaniemi I, Varjosalo M, Tuuri T, Tapanainen JS. OUP accepted manuscript. Mol Hum Reprod 2022; 28:6574364. [PMID: 35471239 PMCID: PMC9308958 DOI: 10.1093/molehr/gaac012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 03/11/2022] [Indexed: 11/14/2022] Open
Affiliation(s)
- K Lundin
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - K Sepponen
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - P Väyrynen
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - X Liu
- Molecular Systems Biology Research Group, Institute of Biotechnology & HiLIFE, University of Helsinki, Helsinki, Finland
- Proteomics Unit, Institute of Biotechnology & HiLIFE, University of Helsinki, Helsinki, Finland
| | - D A Yohannes
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Research Programs Unit, Translational Immunology & Department of Medical and Clinical Genetics, University of Helsinki, Helsinki, Finland
| | - M Survila
- Molecular and Integrative Biosciences Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - B Ghimire
- Institute for Molecular Medicine Finland, University of Helsinki, Helsinki, Finland
| | - J Känsäkoski
- Department of Physiology, University of Helsinki, Helsinki, Finland
| | - S Katayama
- Folkhälsan Research Center, Helsinki, Finland
- Department of Biosciences and Nutrition, Karolinska Institutet, Huddinge, Sweden
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - J Partanen
- Molecular and Integrative Biosciences Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - S Vuoristo
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - P Paloviita
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - N Rahman
- Institute of Biomedicine, University of Turku, Turku, Finland
- Department of Reproduction and Gynecological Endocrinology, Medical University of Bialystok, Bialystok, Poland
| | - T Raivio
- Department of Physiology, University of Helsinki, Helsinki, Finland
- Stem Cells and Metabolism Research Program, Faculty of Medicine, University of Helsinki, Helsinki, Finland
- New Children's Hospital, Pediatric Research Center, Helsinki University Hospital, HUH, Helsinki, Finland
| | - K Luiro
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - I Huhtaniemi
- Institute of Biomedicine, University of Turku, Turku, Finland
- Department of Metabolism, Endocrinology and Reproduction, Faculty of Medicine, Hammersmith Campus, Imperial College London, London, UK
| | - M Varjosalo
- Molecular Systems Biology Research Group, Institute of Biotechnology & HiLIFE, University of Helsinki, Helsinki, Finland
- Proteomics Unit, Institute of Biotechnology & HiLIFE, University of Helsinki, Helsinki, Finland
| | - T Tuuri
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - J S Tapanainen
- Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
- Department of Obstetrics and Gynecology, University Hospital of Oulu, University of Oulu, Medical Research Center Oulu and PEDEGO Research Unit, Oulu, Finland
- Corresponding author. Department of Obstetrics and Gynecology, University of Helsinki and Helsinki University Hospital, PO Box 140, 00029 Helsinki, Finland. Tel: +358-94711; E-mail:
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