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Jonas K, Borys A, Wolkow P, Kopec G. First genetic characteristics of Polish patients with idiopathic pulmonary arterial hypertension. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Pulmonary arterial hypertension (PAH) is a rare, severe disorder of multifactorial origin. Genetic alterations in BMP/SMAD pathways were previously associated with disease development, however the exact role of other genetic factors from BMP/SMAD signalling is still unclear.
Purpose
We aimed to search for known PAH-associated mutations and potential novel variants responsible for disease onset in Polish PAH patients.
Methods
We prospectively recruited 93 consecutive idiopathic PAH patients from a single pulmonary hypertension reference centre between years 2009 and 2020. Eligible patients had pre-capillary pulmonary hypertension with pulmonary vascular resistance >3 Wood units in the absence of other causes of pre-capillary pulmonary hypertension. The presence of large gene rearrangements was analyzed by the Multiplex Ligation-dependent Probe Amplification (MLPA) reactions in the ENG, ACVRL1 and BMPR2 genes (SALSA MLPA Kit, MRC-Holland). We have further sequenced a panel of selected 48 genes from BMP/SMAD and related pathways using next-generation sequencing (SureSelect XT library preparation Kit, Agilent; NextSeq 500 sequencer, Illumina) and assessed causative potential of rare variants (minor allele frequency in non-finish Europeans below 1%) with Mutation Taster web-based tool.
Results
We identified at least one likely-causative variant of investigated genes in 51 (54.8%) subjects. Large genomic rearrangements were found by MLPA in 2 patients in ENG and ACVRL1 (ALK1) genes. We have found mutations in BMPR2 gene in 12 patients (12.5%) from our cohort with most variants present in one sample and 3 variants present in 2 samples. Mutations were located mostly in protein kinase domain (6 variants) and Activin type I and II receptor domain (2 variants). We have found 5 likely pathogenic variants in 6 patients in genes previously associated with PAH other than BMPR2 (SMAD9, KCNA5, KCNK3, EIF2AK4). In total, potentially disease causing mutations in literature-known genes, were present in 18 patients, which accounted for 18.75% of tested cohort. Medium impact variants were also present in KCNA5, TGFBR2, AQP7, BMP6, EIF2AK4, FBP1, NOTCH1, NOTCH3, SMAD7, TBX4, TGFB2, TOPBP1, GDF5, IL6, PPARA, RXRA, KCNK3, KLF4, BMPR1B, ILK, TGFBR1, SMAD9, PPARD and TGFB3 genes. Additionally, in one patient with clinical diagnosis of pulmonary venoocclusive disease we identified an unknown homozygous frameshift variant (p.Phe1523fs/c.4567_4570delTTTG) in exon 35 of EIF2AK4 gene.
Conclusions
We found potentially disease causing mutations in 18,75% Polish patients diagnosed with IPAH most of them were present in BMPR2 gene which is in line with data from other European cohorts. Additionally we found an unknown mutation in the EIF2AK4 gene.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): Narodowe Centrum Nauki - National Science Centre
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Affiliation(s)
- K Jonas
- Jagiellonian University Medical College, John Paul II Hospital, Pulmonary Circulation Centre, Department of Cardiac and Vascular Diseases , Krakow , Poland
| | - A Borys
- Jagiellonian University, Center for Medical Genomics OMICRON , Krakow , Poland
| | - P Wolkow
- Jagiellonian University, Center for Medical Genomics OMICRON , Krakow , Poland
| | - G Kopec
- Jagiellonian University Medical College, John Paul II Hospital, Pulmonary Circulation Centre, Department of Cardiac and Vascular Diseases , Krakow , Poland
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Walczewska J, Siga O, Dzieza-Grudnik A, Krolczyk J, Wizner B, Wolkow PP, Borys A, Kolton-Wroz M, Gryglewska B, Grodzicki T. Urocortin 2 in patients with hypertension treated with angiotensin converting enzyme inhibitors or angiotensin receptor blockers. J Physiol Pharmacol 2019; 70. [PMID: 31443094 DOI: 10.26402/jpp.2019.2.15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 04/29/2019] [Indexed: 11/03/2022]
Abstract
Urocortin 2 (Ucn2) - corticotropin-releasing hormone receptor 2 signalling has favourable effects in the cardiovascular system, including vasodilation, lowering of blood pressure and systemic peripheral resistance, increase in cardiac output and cardiac contractility, as well as cardioprotection against ischemia-reperfusion injury. Vasodilation and lowering of blood pressure seem to be very interesting and important effects, but their mechanism and interaction with the antihypertensive drugs have not been evaluated. The aim of the present study was to assess the relationship between Ucn2 concentration and antihypertensive therapy in patients with primary hypertension. We examined a group of 65 patients with primary hypertension receiving at least 3 antihypertensive drugs. In all of them plasma level of Ucn2, anthropometric measurements, biochemical tests, ambulatory blood pressure monitoring (ABPM), and echocardiography were performed. There were no differences in Ucn2 level related to beta-blockers, calcium channel blockers or diuretics, but we observed that in patients treated with angiotensin converting enzyme inhibitors (ACEI) (n = 52) serum Ucn2 levels were significantly higher than in patients treated with angiotensin-receptor blockers (ARBs) (n = 13) (10.93 versus 5.56 ng/mL; P < 0.05). Moreover, we did not observe any differences in terms of blood pressure on ABPM, biochemical measurements, left ventricular mass index, or presence of diabetes. In addition, in a small subgroup receiving alpha-blockers we also found a lower level of Ucn2, with coexisting higher systolic blood pressure at night, higher left ventricle mass index (LVMI) and more frequent occurrences of diabetes compared to non-alpha-blockers. Our findings suggest that the hypotensive action of renin-angiotensin-aldosterone system blockade may be related to the urocortin system. Ucn2 may be an important element in the mosaic of blood pressure-lowering factors in patients treated for essential hypertension.
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Affiliation(s)
- J Walczewska
- Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, Cracow, Poland.
| | - O Siga
- Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, Cracow, Poland
| | - A Dzieza-Grudnik
- Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, Cracow, Poland
| | - J Krolczyk
- Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, Cracow, Poland
| | - B Wizner
- Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, Cracow, Poland
| | - P P Wolkow
- Center for Medical Genomics OMICRON, Jagiellonian University Medical College, Cracow, Poland
| | - A Borys
- Center for Medical Genomics OMICRON, Jagiellonian University Medical College, Cracow, Poland
| | - M Kolton-Wroz
- Center for Medical Genomics OMICRON, Jagiellonian University Medical College, Cracow, Poland
| | - B Gryglewska
- Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, Cracow, Poland
| | - T Grodzicki
- Department of Internal Medicine and Gerontology, Jagiellonian University Medical College, Cracow, Poland
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Siga O, Dzieza-Grudnik A, Walczewska J, Wolkow P, Borys A, Wizner B, Gryglewska B, Grodzicki T. [PP.05.28] RELATIONSHIP BETWEEN UROCORTIN 2 CONCENTRATION AND METABOLIC PROFILE IN HEALTHY SUBJECTS. J Hypertens 2017. [DOI: 10.1097/01.hjh.0000523326.09703.2f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Borys A, Golabek T, Przydacz M, Klimkowska A, Toton-Zuranska J, Machlowska J, Chlosta P, Okon K, Wolkow P. Changes in transcription of the genes from iron and copper metabolic pathways are associated with progression from T1 to T3 stage of renal cell carcinoma. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)32756-3] [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: 11/25/2022]
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Wątor G, Suski M, Borys A, Swirta J, Chronowska E, Barczyński M, Wołkow P. Multi-omics studies of intra-tumour heterogeneity in colorectal cancer. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61360-6] [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: 10/21/2022]
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Borys B, Pająk J, Borys A. The effect of rapeseed fed to suckled ewes
on the fatty acid profle of lamb meat. J Anim Feed Sci 2005. [DOI: 10.22358/jafs/70520/2005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
AIM To demonstrate the various patterns of primary synovial chondromatosis (PSC) around the shoulder and to discuss a therapeutic algorithm. METHOD In this retrospective study, 6 patients with histologically proven PSC were operated on. The diagnosis was based on clinical examination, plain X-rays, ultrasonography and MRI in 5/6 patients. Also, a histological examination was done in all cases. According to the localisation of the disease, surgery was done by endoscopy alone, endoscopy together with open surgery or direct open surgery. RESULTS In one case each, we saw an isolated disease of the subacromial bursa or the gleno-humeral joint. In two cases, we found an intraarticular affection together with the biceps tendon sheath. The other two patients showed a massive periarticular deposition of loose bodies together with a defect of the rotator cuff. All patients with intraarticular disease (5/6) showed different stages of chondromalacia. In 5 of 6 patients all bodies could be removed at surgery. At follow-up after 36 months the patients subjectively rated the result as satisfactory to excellent. In the patients with total removal of the bodies, no recurrences were seen on plain X-ray or ultrasonography. CONCLUSION PSC around the shoulder appears with a variable pattern. According to the possible late complications described in the literature (i. e., secondary osteoarthritis, involvement of the rotator cuff and secondary malignant transformation), we find operative treatment justified. Surgery addressing removal of loose bodies and partial synovectomy allows good results. The operative approach (endoscopy or open surgery) is related to the localisation and severity of the condition.
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Affiliation(s)
- A Werner
- Orthopädische Klinik, Heinrich-Heine-Universität Düsseldorf.
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Leslie WD, Borys A, McDonald D, Dupont JO, Peterdy AE. External reference markers for the correction of head rotation in brain single-photon emission tomography. Eur J Nucl Med 1995; 22:351-5. [PMID: 7607267 DOI: 10.1007/bf00941853] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Accurate reorientation of brain single-photon emission tomography (SPET) is required for quantitative procedures and for correlation with other imaging modalities. Traditionally, brain SPET has utilized reoriented slices parallel to the orbitomeatal line (OML). Reorientation using internal landmarks would be more convenient but has not been systematically compared with the use of external landmarks. We compared the interobserver reproducibility for defining the sagittal and coronal angular deviations using internal landmarks, a visual method based upon external reference markers, and an automated method based upon external reference markers. Internal landmarks were inaccurate for defining the OML whether this was based upon the frontal-occipital or frontal-cerebellar plane. External reference markers resulted in significantly lower interobserver differences for both sagittal and coronal reorientation. An operator-independent implementation proved to be feasible and provided an objective measure of marker coplanarity. In summary, external reference markers should be used when reproducible reorientation and ROI placement are required.
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Affiliation(s)
- W D Leslie
- Section of Nuclear Medicine, University of Manitoba, St. Boniface General Hospital, Winnipeg, Canada
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Abstract
Fusion plasmids with lacZ under the control of the katE (encoding catalase or hydroperoxidase HPII) and katF (encoding a sigma factor-like protein required for katE expression) promoters were constructed. Expression from both katE and katF promoters was low in rich medium but elevated in poor medium during log-phase growth. Furthermore, the slowdown in growth as cells entered the stationary phase in rich medium, a result of carbon source depletion, was associated with an increase in katE and katF expression. A simple reduction in the carbon source level as the cells entered the stationary phase was not responsible for the increase in expression, because transferring the culture to a medium with no glucose did not induce expression from either promoter. Spent rich medium from stationary-phase cells was capable of inducing expression, as were simple aromatic acids such as benzoate, o-hydroxybenzoate, and p-aminobenzoate added to new medium. Anaerobiosis did not cause an increase in expression, nor did it significantly change the pattern of expression. Regardless of the medium, katF expression was always turned on before or coincidently with katE expression; in the presence of benzoate katF was fully induced, whereas katE was only partially induced, suggesting that a factor in addition to KatF protein was involved in katE expression. During prolonged aerobic incubation, cells lacking katF died off more rapidly than did cells lacking either katE or katG.
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Affiliation(s)
- M R Mulvey
- Department of Microbiology, University of Manitoba, Winnipeg, Canada
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Abstract
The genotoxic activities of refined smoke flavor (RSF) produced in Poland and used in food processing were investigated in 2 bacterial short-term tests. Its mutagenic activity was examined in the Salmonella/histidine plate assay and its SOS-inducing capacity in the SOS Chromotest both without and with 'activation' by a rat liver homogenate. No genotoxic activity was detected using these 2 bacterial tests.
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Affiliation(s)
- J Jenek
- Unité de Programmation Moléculaire et Toxicologie Génétique, CNRS LA271, Institut Pasteur, Paris, France
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Jodczyk K, Bańkowski E, Borys A. [Stimulating effect of degradation products of blood platelets on the regeneration of corneal epithelium]. Klin Oczna 1986; 88:273-5. [PMID: 3573671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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