1
|
Birkner S, Möhlendick B, Wilde B, Schoenfelder K, Boss K, Siffert W, Kribben A, Friebus-Kardash J. Single-Nucleotide Polymorphism in Genes Encoding G Protein Subunits GNB3 and GNAQ Increase the Risk of Cardiovascular Morbidity among Patients Undergoing Renal Replacement Therapy. Int J Mol Sci 2023; 24:15260. [PMID: 37894940 PMCID: PMC10607787 DOI: 10.3390/ijms242015260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/09/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023] Open
Abstract
Single-nucleotide polymorphisms in G protein subunits are linked to an increased risk of cardiovascular events among the general population. We assessed the effects of GNB3 c.825C > T, GNAQ -695/-694GC > TT, and GNAS c.393C > T polymorphisms on the risk of cardiovascular events among 454 patients undergoing renal replacement therapy. The patients were followed up for a median of 4.5 years after the initiation of dialysis. Carriers of the TT/TT genotype of GNAQ required stenting because of coronary artery stenosis (p = 0.0009) and developed cardiovascular events involving more than one organ system (p = 0.03) significantly earlier and more frequently than did the GC/TT or GC/GC genotypes. Multivariate analysis found that the TT/TT genotype of GNAQ was an independent risk factor for coronary artery stenosis requiring stent (hazard ratio, 4.5; p = 0.001), cardiovascular events (hazard ratio, 1.93; p = 0.04) and cardiovascular events affecting multiple organs (hazard ratio, 4.9; p = 0.03). In the subgroup of male patients left ventricular dilatation with abnormally increased LVEDD values occurred significantly more frequently in TT genotypes of GNB3 than in CT/CC genotypes (p = 0.007). Our findings suggest that male dialysis patients carrying the TT genotype of GNB3 are at higher risk of left ventricular dilatation and that dialysis patients carrying the TT/TT genotype of GNAQ are prone to coronary artery stenosis and severe cardiovascular events.
Collapse
Affiliation(s)
- Simon Birkner
- Department of Nephrology, University of Duisburg-Essen, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany; (S.B.); (B.W.); (K.S.); (K.B.); (A.K.)
| | - Birte Möhlendick
- Institute of Pharmacogenetics, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany (W.S.)
| | - Benjamin Wilde
- Department of Nephrology, University of Duisburg-Essen, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany; (S.B.); (B.W.); (K.S.); (K.B.); (A.K.)
| | - Kristina Schoenfelder
- Department of Nephrology, University of Duisburg-Essen, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany; (S.B.); (B.W.); (K.S.); (K.B.); (A.K.)
| | - Kristina Boss
- Department of Nephrology, University of Duisburg-Essen, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany; (S.B.); (B.W.); (K.S.); (K.B.); (A.K.)
| | - Winfried Siffert
- Institute of Pharmacogenetics, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany (W.S.)
| | - Andreas Kribben
- Department of Nephrology, University of Duisburg-Essen, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany; (S.B.); (B.W.); (K.S.); (K.B.); (A.K.)
| | - Justa Friebus-Kardash
- Department of Nephrology, University of Duisburg-Essen, University Hospital Essen, Hufelandstr. 55, 45147 Essen, Germany; (S.B.); (B.W.); (K.S.); (K.B.); (A.K.)
| |
Collapse
|
2
|
Peitz T, Möhlendick B, Eisenberger U, Siffert W, Heinemann FM, Kribben A, Friebus-Kardash J. CC Genotype of GNAS c.393C>T (rs7121) Polymorphism Has a Protective Effect against Development of BK Viremia and BKV-Associated Nephropathy after Renal Transplant. Pathogens 2022; 11:pathogens11101138. [PMID: 36297195 PMCID: PMC9609707 DOI: 10.3390/pathogens11101138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/23/2022] [Accepted: 09/28/2022] [Indexed: 11/07/2022] Open
Abstract
The GNAS gene encodes the alpha-subunit of the stimulatory G-protein (Gαs) in humans and mice. The single-nucleotide polymorphism of GNAS, c.393C>T, is associated with an elevated production of Gαs and an increased formation of cyclic adenosine monophosphate (cAMP). In the present study, we analyzed the effect of this GNAS polymorphism on a renal allograft outcome. We screened a cohort of 436 renal allograft recipients, who were retrospectively followed up for up to 5 years after transplant. GNAS genotypes were determined with polymerase chain reaction restriction fragment length polymorphism (PCR-RFLP) assays. The 393T allele was detected in 319 (73%) recipients (113 recipients with TT and 206 with CT genotype) and the CC genotype in 117 (27%). The CC genotype was associated with a significantly lower frequency of BK viremia (CC, 17 recipients (15%); T 84 (26%)); p = 0.01; TT, 27 vs. CC, 17, p = 0.07; TT, 27 vs. CT, 57, p = 0. 46; CT, 57 vs. CC, 17, p = 0.01) and BKV-associated nephropathy (CC, 3 recipients (3%); T, 27 (8%); p = 0.03; TT,10 vs. CC, 3, p = 0.04; TT, 10 vs. CT,17, p = 0.85; CT, 17 vs. CC,3, p = 0.04) after transplant. BKV-associated nephropathy-free survival was significantly better among CC genotype carriers than among T allele carriers (p = 0.043; TT vs. CC, p = 0.03; CT vs. CC, p = 0.04; TT vs. CT, p = 0.83). Multivariate analysis indicated an independent protective effect of the CC genotype against the development of both BK viremia (relative risk. 0.54; p = 0.04) and BKV-associated nephropathy after renal transplant (relative risk. 0.27; p = 0.036). The GNAS 393 CC genotype seems to protect renal allograft recipients against the development of BK viremia and BKV-associated nephropathy.
Collapse
Affiliation(s)
- Tobias Peitz
- Department of Nephrology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Birte Möhlendick
- Institute of Pharmacogenetics, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Ute Eisenberger
- Department of Nephrology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Winfried Siffert
- Institute of Pharmacogenetics, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Falko Markus Heinemann
- Institute for Transfusion Medicine, Transplantation Diagnostics, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Andreas Kribben
- Department of Nephrology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
| | - Justa Friebus-Kardash
- Department of Nephrology, University Hospital Essen, University of Duisburg-Essen, 45147 Essen, Germany
- Correspondence: ; Tel.: +49-(0)-201-7236559; Fax: +49-(0)-201-7236907
| |
Collapse
|
3
|
Targeting GPCRs and Their Signaling as a Therapeutic Option in Melanoma. Cancers (Basel) 2022; 14:cancers14030706. [PMID: 35158973 PMCID: PMC8833576 DOI: 10.3390/cancers14030706] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 01/27/2022] [Accepted: 01/27/2022] [Indexed: 12/10/2022] Open
Abstract
Simple Summary Sixteen G-protein-coupled receptors (GPCRs) have been involved in melanogenesis or melanomagenesis. Here, we review these GPCRs, their associated signaling, and therapies. Abstract G-protein-coupled receptors (GPCRs) serve prominent roles in melanocyte lineage physiology, with an impact at all stages of development, as well as on mature melanocyte functions. GPCR ligands are present in the skin and regulate melanocyte homeostasis, including pigmentation. The role of GPCRs in the regulation of pigmentation and, consequently, protection against external aggression, such as ultraviolet radiation, has long been established. However, evidence of new functions of GPCRs directly in melanomagenesis has been highlighted in recent years. GPCRs are coupled, through their intracellular domains, to heterotrimeric G-proteins, which induce cellular signaling through various pathways. Such signaling modulates numerous essential cellular processes that occur during melanomagenesis, including proliferation and migration. GPCR-associated signaling in melanoma can be activated by the binding of paracrine factors to their receptors or directly by activating mutations. In this review, we present melanoma-associated alterations of GPCRs and their downstream signaling and discuss the various preclinical models used to evaluate new therapeutic approaches against GPCR activity in melanoma. Recent striking advances in our understanding of the structure, function, and regulation of GPCRs will undoubtedly broaden melanoma treatment options in the future.
Collapse
|
4
|
Hagelstein-Rotman M, Meier ME, Majoor BCJ, Cleven AHG, Dijkstra PDS, Hamdy NAT, van de Sande MAJ, Dekkers OM, Appelman-Dijkstra NM. Increased Prevalence of Malignancies in Fibrous Dysplasia/McCune-Albright Syndrome (FD/MAS): Data from a National Referral Center and the Dutch National Pathology Registry (PALGA). Calcif Tissue Int 2021; 108:346-353. [PMID: 33226445 DOI: 10.1007/s00223-020-00780-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 11/05/2020] [Indexed: 01/14/2023]
Abstract
Malignant transformation of fibrous dysplasia lesions has been reported in patients with fibrous dysplasia/McCune-Albright syndrome (FD/MAS). Recently, we have observed an increased risk for breast cancer. In this study, the prevalence of skeletal and extraskeletal malignancies in patients with FD/MAS in the Netherlands was assessed by analyzing data from our cohort of FD/MAS patients, the Dutch Pathology Registry (PALGA), and the Netherlands Cancer Registry (NCR). We extracted data on sex, age at diagnosis of FD/MAS, type of FD/MAS, type of malignancy, and age at diagnosis of malignancy and histology of bone and malignant tissue when available, including GNAS-mutation analysis from patients' medical records. Standardized Morbidity Ratios (SMRs) with 95% confidence intervals were calculated. Twelve malignancies were identified in the LUMC FD/MAS cohort and 100 in the PALGA cohort. In this cohort, SMR was increased for osteosarcoma (19.7, 95% CI 3.5-48.9), cervical cancer (4.93, 95%CI 1.7-8.2), thyroid cancer (3.71, 95% CI 1.1-7.8), prostate cancer (3.08, 95% CI 1.8-4.6), and melanoma (2.01, 95%CI 1.2-3.1). SMRs for pancreatic cancer or hepatocellular carcinoma could not be calculated due to low numbers. The small number of malignancies identified in our FD/MAS cohort precluded the calculation of SMRs for our cohort specifically. Our findings show that patients with FD/MAS appear to have an increased risk for osteosarcoma, cervical, thyroid, and prostate cancer and melanoma. However, these data should be interpreted with caution, as true incidence rates of the identified malignancies may be influenced by the inclusion of only patients with histologically confirmed FD/MAS. The etiology of this increased risk for malignancies still needs to be elucidated.
Collapse
Affiliation(s)
- M Hagelstein-Rotman
- Department of Medicine, Division Endocrinology, Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands.
| | - M E Meier
- Department of Orthopaedic Surgery, Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
| | - B C J Majoor
- Department of Orthopaedic Surgery, Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
| | - A H G Cleven
- Department of Pathology, Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
| | - P D S Dijkstra
- Department of Orthopaedic Surgery, Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
| | - N A T Hamdy
- Department of Medicine, Division Endocrinology, Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
| | - M A J van de Sande
- Department of Orthopaedic Surgery, Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
| | - O M Dekkers
- Department of Medicine, Division Endocrinology, Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
- Department of Epidemiology, Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
- Department of Epidemiology, Aarhus University Hospital, Aarhus, Denmark
| | - N M Appelman-Dijkstra
- Department of Medicine, Division Endocrinology, Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
| |
Collapse
|
5
|
GOKCE HATICEHUMEYRAYAVUZ, DASDEMIR SELCUK, KUCUKALI CEMISMAIL, IPLIK ELIFSINEM, CAKMAKOGLU BEDIA. G protein gene variants in schizophrenia. ARCH CLIN PSYCHIAT 2020. [DOI: 10.1590/0101-60830000000227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
6
|
Möhlendick B, Schmid KW, Siffert W. The GNAS SNP c.393C>T (rs7121) as a marker for disease progression and survival in cancer. Pharmacogenomics 2019; 20:553-562. [PMID: 31124412 DOI: 10.2217/pgs-2018-0199] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
G-protein receptor signaling plays a key role in multiple signal transduction pathways. Aberrant activity of the stimulatory Gsα subunit has been frequently associated with cancer. GNAS sequence alterations and conformational changes of Gsα can both enhance or diminish its function and change downstream effects of G-protein receptor signaling. In this review and meta-analysis, we focus on the synonymous SNP rs7121 (FokI, c.393C>T), which is associated with either tumor progression or prolonged survival in cancer patients (overall hazard ratio = 2.256; p < 0.001). We finally point out the relevance of GNAS rs7121 as a promising biomarker and a prediction tool for therapy response and the need of further experiments to implement it into routine clinical diagnostics.
Collapse
Affiliation(s)
- Birte Möhlendick
- Institute of Pharmacogenetics, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45122 Essen, Germany
| | - Kurt W Schmid
- Institute of Pathology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45122 Essen, Germany
| | - Winfried Siffert
- Institute of Pharmacogenetics, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45122 Essen, Germany
| |
Collapse
|
7
|
Sex-specific association of a common GNAS polymorphism with self-reported cognitive empathy in healthy volunteers. PLoS One 2018; 13:e0206114. [PMID: 30365517 PMCID: PMC6203261 DOI: 10.1371/journal.pone.0206114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Accepted: 10/08/2018] [Indexed: 11/19/2022] Open
Abstract
Background In a recent study, we found associations of a common oxytocin receptor (OXTR) polymorphism with inter-individual differences in empathy, especially with emotional empathy in women. Many other studies found specific associations of oxytocin, arginine-vasopressin, serotonin and dopamine receptor gene polymorphisms with various aspects of trait empathy. As all these receptors belong to the guanine-binding protein (G protein) coupled receptor family, it is a reasonable assumption, that alterations in genes encoding G protein subunits also influence the signal transduction in empathy related circuits. However, to the best of our knowledge, these genomic variations have not yet been studied in genetic research on empathy. Methods Here, we analysed associations of a common polymorphism of the GNAS gene (C393T) in a previously characterized sample of 421 healthy blood donors (231 M, 190 F; age 18–74). The GNAS gene encodes the G protein adenylyl cyclase stimulator (Gαs) G protein subunit, which activates cyclic adenosine monophosphate (cAMP)-dependent pathways by stimulating the adenylyl cyclase. Cognitive and emotional aspects of dispositional empathy were tested using Davis’ Interpersonal Reactivity Index (IRI). Results In the complete sample, associations of C393T genotype with IRI empathy scores, including cognitive empathy (p = 0.055) and perspective taking (p = 0.057) scores did not reach a level of significance. None of the IRI scores was near to being significantly associated with C393T genotype for men alone. In females, however, genotype was significantly associated with cognitive empathy (r = -.204, p = 0.005) and perspective taking (r = -.209, p = 0.004), accounting for 4.2% and 4.4% of variability. The association of genotype with perspective taking remained significant after adjustment for multiple comparisons (p = 0.045). The 393C-allele, which had been identified as a risk factor in several medical conditions such as hypertension, obesity and diabetes, was associated with higher cognitive empathy compared to the T allele in our sample. Conclusions The results suggest a significant association of GNAS C393T genotypes with the cognitive empathic capacity of perspective taking. This association could only be found in female participants.
Collapse
|
8
|
Cao XY, Ji HJ, Zhou YJ, Lu XF, Shen JY, Wu ZR, Bu H, Shi YJ. Elevated expression of G sα in intrahepatic cholangiocarcinoma associates with poor prognosis. Hepatobiliary Pancreat Dis Int 2017; 16:638-644. [PMID: 29291784 DOI: 10.1016/s1499-3872(17)60073-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2017] [Accepted: 08/07/2017] [Indexed: 02/05/2023]
Abstract
BACKGROUND The stimulatory G protein a subunit (Gsα) plays important roles in diverse cell processes including tumorigenesis. Activating mutations in Gsα gene (GNAS) have been reported to be associated with poor prognosis in various human carcinomas. Furthermore, Gsα signaling is crucial in promoting liver regeneration by interacting with growth factor signaling, indicating that Gsα might play a promoting role in cancer development. However, little is known about the correlation between Gsα levels and clinicopathological parameters in intrahepatic cholangiocarcinoma (ICC). METHODS We performed immunoblotting to examine the expression levels of Gsα and Ki67 proteins in tumor tissues and the corresponding adjacent tissues. A total of 74 pair of specimens resected from 74 ICC patients were examined. The association between Gsα levels and clinicopathological findings and prognosis of the patients was evaluated. RESULTS Western blotting demonstrated that the expression of Gsα was significantly higher in ICC tissues compared with that in their corresponding adjacent tissues. Gsα protein was highly expressed in about half of ICC tissues (48.6%, 36/74) while only 28.4% (21/74) of tumor adjacent tissues showed Gsα high expression (P=0.011). High Gsα expression in ICC was significantly associated with the numbers of tumor nodules (P=0.037) and lymph node metastases (P=0.010). Moreover, the level of Gsα was significantly and positively correlated with Ki67 expression (P<0.001). In addition, the recurrence-free survival rate and overall survival rate in the Gsα high group were significantly lower than those in the Gsα low group (P=0.004 and P=0.005, respectively). CONCLUSIONS High Gsα expression is correlated with poor prognosis in ICC patients. Gsα might serve as a potential prognostic indicator of ICC.
Collapse
Affiliation(s)
- Xiao-Yue Cao
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China; Key Laboratory of Transplant Engineering and Immunology, NHFPC, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hong-Jie Ji
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China; Key Laboratory of Transplant Engineering and Immunology, NHFPC, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yong-Jie Zhou
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China; Key Laboratory of Transplant Engineering and Immunology, NHFPC, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xu-Feng Lu
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China; Key Laboratory of Transplant Engineering and Immunology, NHFPC, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jun-Yi Shen
- Department of Liver Surgery & Liver Transplantation Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhen-Ru Wu
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hong Bu
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China; Key Laboratory of Transplant Engineering and Immunology, NHFPC, West China Hospital, Sichuan University, Chengdu 610041, China; Department of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yu-Jun Shi
- Laboratory of Pathology, West China Hospital, Sichuan University, Chengdu 610041, China; Key Laboratory of Transplant Engineering and Immunology, NHFPC, West China Hospital, Sichuan University, Chengdu 610041, China.
| |
Collapse
|
9
|
Piedra M, Berja A, Ramos L, García-Unzueta MT, Morán JM, Ruiz D, Amado JA. Analysis of the influence of the T393C polymorphism of the GNAS gene on the clinical expression of primary hyperparathyroidism. ACTA ACUST UNITED AC 2017; 64:524-530. [PMID: 29179855 DOI: 10.1016/j.endinu.2017.08.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 08/06/2017] [Accepted: 08/10/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND The receptor of parathyroid hormone and parathyroid hormone-related-protein (PTH/PTHrp) is located in the cell membrane of target tissues - kidney and osteoblasts. It is a G protein-coupled-receptor whose Gsα subunit is encoded by the GNAS gene. Our aim was to study whether the single nucleotide polymorphism (SNP) T393C of the GNAS gene is associated with renal stones, bone mineral density (BMD), or bone remodelling markers in primary hyperparathyroidism (PHPT). METHODS An analysis was made of clinical and biochemical parameters and densitometric values in three areas and their relationship with the T393C SNP of the GNAS gene in 261 patients with primary hyperparathyroidism and in 328 healthy controls. Genotyping was performed using the Custom Taqman® SNP Genotyping assay. RESULTS The genotype frequencies of GNAS T/C 393 were similar in the control and PHPT groups. No association was found between genotypes and clinical expression of PHPT (renal stones and bone fractures). A nonstatistically significant trend was seen to lower BMD in the lumbar spine, femoral neck, and total hip in both PHPT and control C homozygote subjects. CONCLUSION Genetic susceptibility to PHPT related to the GNAS T393C polymorphism or a major influence in its development and clinical expression were found. A C allele-related susceptibility to lower BMD in trabecular bone in both PHPT and control subjects is not sufficient to suggest a more severe clinical expression of PHPT. This trend may be considered as a basis for further studies with larger sample sizes and complementary functional evaluation.
Collapse
Affiliation(s)
- María Piedra
- Servicio de Endocrinología, Hospital Universitario "Marqués de Valdecilla", Instituto de Investigación "Marqués de Valdecilla" (IDIVAL), Universidad de Cantabria, Avda. de Valdecilla s/n, Santander 39008, Cantabria, Spain.
| | - Ana Berja
- Servicio de Endocrinología, Hospital Universitario "Marqués de Valdecilla", Instituto de Investigación "Marqués de Valdecilla" (IDIVAL), Universidad de Cantabria, Avda. de Valdecilla s/n, Santander 39008, Cantabria, Spain
| | - Laura Ramos
- Servicio de Endocrinología, Hospital Universitario "Marqués de Valdecilla", Instituto de Investigación "Marqués de Valdecilla" (IDIVAL), Universidad de Cantabria, Avda. de Valdecilla s/n, Santander 39008, Cantabria, Spain
| | - María Teresa García-Unzueta
- Servicio de Bioquímica, Hospital Universitario "Marqués de Valdecilla", Instituto de Investigación "Marqués de Valdecilla" (IDIVAL), Universidad de Cantabria, Avda. de Valdecilla s/n, Santander 39008, Cantabria, Spain
| | - Jesús Manuel Morán
- Servicio de Endocrinología, Hospital Universitario "Marqués de Valdecilla", Instituto de Investigación "Marqués de Valdecilla" (IDIVAL), Universidad de Cantabria, Avda. de Valdecilla s/n, Santander 39008, Cantabria, Spain
| | - David Ruiz
- Servicio de Endocrinología, Hospital Universitario "Marqués de Valdecilla", Instituto de Investigación "Marqués de Valdecilla" (IDIVAL), Universidad de Cantabria, Avda. de Valdecilla s/n, Santander 39008, Cantabria, Spain
| | - José Antonio Amado
- Servicio de Endocrinología, Hospital Universitario "Marqués de Valdecilla", Instituto de Investigación "Marqués de Valdecilla" (IDIVAL), Universidad de Cantabria, Avda. de Valdecilla s/n, Santander 39008, Cantabria, Spain
| |
Collapse
|
10
|
Stelmach P, Kauther MD, Fuest L, Kurscheid G, Gehrke T, Klenke S, Jäger M, Wedemeyer C, Bachmann HS. Relationship between GNAS1 T393C polymorphism and aseptic loosening after total hip arthroplasty. Eur J Med Res 2017; 22:29. [PMID: 28830502 PMCID: PMC5568317 DOI: 10.1186/s40001-017-0271-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 08/18/2017] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Aseptic loosening is a main cause for revision surgery after total hip arthroplasty (THA) and there is no reliable marker for the early detection of patients at high risk. This study has been performed to validate association of the T393C polymorphism (rs7121) in the GNAS1 gene, encoding for the alpha-subunit of heterotrimeric G-protein Gs, with risk for and time to aseptic loosening after THA, which has been demonstrated in our previous study. METHODS 231 patients with primary THA and 234 patients suffering from aseptic loosening were genotyped for dependency on GNAS1 genotypes and analyzed. RESULTS Genotyping revealed almost similar minor allele frequencies of 0.49 and 0.46, respectively. Consistently, genotype distributions of both groups were not significantly different (p = 0.572). Neither gender nor GNAS1 genotype showed a statistically significant association with time to loosening (p = 0.501 and p = 0.840). Stratification by gender, as performed in our previous study, was not able to show a significant genotype-dependent difference in time (female p = 0.313; male p = 0.584) as well as median time to aseptic loosening (female p = 0.353; male p = 0.868). CONCLUSION This study was not able to confirm the results of our preliminary study. An association of the GNAS1 T393C polymorphisms with risk for and time to aseptic loosening after THA is unlikely.
Collapse
Affiliation(s)
- Patrick Stelmach
- Institute of Pharmacogenetics, University Hospital Essen, 45147, Essen, Germany
| | - Max D Kauther
- Department of Orthopaedics and Trauma Surgery, University Hospital Essen, Essen, Germany
| | - Lena Fuest
- Institute of Pharmacogenetics, University Hospital Essen, 45147, Essen, Germany.,Department of Orthopaedics and Trauma Surgery, University Hospital Essen, Essen, Germany
| | - Gina Kurscheid
- Institute of Pharmacogenetics, University Hospital Essen, 45147, Essen, Germany.,Department of Orthopaedics and Trauma Surgery, University Hospital Essen, Essen, Germany
| | - Thorsten Gehrke
- Department of Joint Surgery, Helios ENDO-Klinik, Hamburg, Germany
| | - Stefanie Klenke
- Institute of Pharmacogenetics, University Hospital Essen, 45147, Essen, Germany.,Department of Anaesthesiology and Intensive Care, University Hospital Essen, Essen, Germany
| | - Marcus Jäger
- Department of Orthopaedics and Trauma Surgery, University Hospital Essen, Essen, Germany
| | - Christian Wedemeyer
- Department of Orthopaedics and Trauma Surgery, University Hospital Essen, Essen, Germany
| | - Hagen S Bachmann
- Institute of Pharmacogenetics, University Hospital Essen, 45147, Essen, Germany. .,Department of Health, School of Medicine, Institute of Pharmacology and Toxicology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University, Witten, Germany.
| |
Collapse
|
11
|
Gusella M, Pezzolo E, Modena Y, Barile C, Menon D, Crepaldi G, La Russa F, Fraccon AP, Pasini F. Predictive genetic markers in neoadjuvant chemoradiotherapy for locally advanced esophageal cancer: a long way to go. Review of the literature. THE PHARMACOGENOMICS JOURNAL 2017; 18:14-22. [PMID: 28607505 DOI: 10.1038/tpj.2017.25] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 03/29/2017] [Accepted: 04/14/2017] [Indexed: 12/31/2022]
Abstract
The role of genetic molecular markers in neoadjuvant treatment for locally advanced esophageal cancer has been reviewed, focusing strictly on concurrent chemoradiation protocols followed by surgery. Eleven studies evaluated the role of mRNA expression profile; the end point was overall survival (OS) in two studies and different definitions of histological response in nine. Genes reported as significant were involved in cell cycle control (30), apoptosis (7), structural molecules (9), cell metabolism (6) and DNA repair (1). Seven studies reported about 15 microRNA (miRNA) molecules associated with OS (2) or histological response (13), however, defined with different classifications. Their target genes were prevalently involved in cell cycle control (4), apoptosis (1), cell adhesion (1), migration (1) and angiogenesis (1). Gene polymorphisms (single-nucleotide polymorphisms (SNPs)) have been evaluated in 8 studies reporting 10 variants associated with survival or pathological response. OS was the end point in six of these studies. SNPs reported as significant were involved in DNA repair system (4), detoxification (2), folate metabolism (6), drug efflux (2) and others (2). In a study, a panel including histology, pathological response and five SNPs discriminated two subsets of patients with 5-year survival rates of 79.3% and 26.3% (hazard ratio 6.25, P<0.0001). In another study, combination of stage, grade and 4 miRNAs improved prediction of pathological response (P=10-30). At present, given the great inconsistency of the data and the variability of the end points, definite conclusions are extremely difficult, if not impossible. More consistent data can derive only from analyses obtained from patients included in prospective randomized trials while panels combining genetic and clinical factors may improve prediction.
Collapse
Affiliation(s)
- M Gusella
- Laboratory of Pharmacology and Molecular Biology, Department of Oncology, San Luca Hospital, Rovigo, Italy
| | - E Pezzolo
- Laboratory of Pharmacology and Molecular Biology, Department of Oncology, San Luca Hospital, Rovigo, Italy
| | - Y Modena
- Medical Oncology Unit, Department of Oncology, S. Maria della Misericordia Hospital, Rovigo, Italy
| | - C Barile
- Medical Oncology Unit, Department of Oncology, S. Maria della Misericordia Hospital, Rovigo, Italy
| | - D Menon
- Medical Oncology Unit, Department of Oncology, S. Maria della Misericordia Hospital, Rovigo, Italy
| | - G Crepaldi
- Medical Oncology Unit, Department of Oncology, S. Maria della Misericordia Hospital, Rovigo, Italy
| | - F La Russa
- Medical Oncology Unit, Department of Oncology, S. Maria della Misericordia Hospital, Rovigo, Italy
| | - A P Fraccon
- Medical Oncology Unit, Pederzoli Hospital, Peschiera del Garda (Verona), Italy
| | - F Pasini
- Medical Oncology Unit, Pederzoli Hospital, Peschiera del Garda (Verona), Italy
| |
Collapse
|
12
|
Hess J, Stelmach P, Eisenhardt A, Rübben H, Reis H, Schmid KW, Bachmann HS. Impact of BCL2 polymorphisms on survival in transitional cell carcinoma of the bladder. J Cancer Res Clin Oncol 2017; 143:1659-1670. [PMID: 28417194 DOI: 10.1007/s00432-017-2404-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2016] [Accepted: 03/24/2017] [Indexed: 12/13/2022]
Abstract
PURPOSE To evaluate the impact of three BCL2 single-nucleotide polymorphisms, i.e., c.-938C>A (rs2279115), c.21G>A (rs1801018), and c.*2203A>G (rs4987853) on survival in patients with transitional cell carcinoma of the bladder. METHODS We analyzed 179 patients who underwent surgical treatment for bladder cancer at the Clinic of Urology, University Hospital Essen, Germany. Genomic DNA was extracted and genotyped for the polymorphisms. For all polymorphisms, linkage analysis was performed. Kaplan-Meier and Cox regression analyses were used to determine the putative impact of the three polymorphisms on outcome. RESULTS c.-938C>A and c.21G>A, but not c.*2203A>G, are in strong linkage disequilibrium (D' 0.96). We found a significant association between c.-938C>A and relapse-free survival (p = 0.024) with an allele dose effect. In the same way, c.21G>A had a significant impact on both relapse-free survival (p = 0.009) and progression-free survival (p = 0.012), as well as a pronounced allele dose effect. Regression analysis proved c.21G>A and c.-938C>A, to be an independent risk factor in univariate and multivariable analyses. CONCLUSIONS In our cohort, both c.-938C>A and c.21G>A showed a significant impact on outcome with TCC of the bladder. Due to the linkage disequilibrium of both SNPs, maybe, only one of them could mediate this effect. In multivariable analysis, however, both proved to be independently associated with overall survival. Contrary to other findings which found the c.-938C>A mainly influencing outcome, our data may suggest that the main effect on TCC could be due to the c.21G>A polymorphism.
Collapse
Affiliation(s)
- Jochen Hess
- Clinic of Urology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45147, Essen, Germany.
- Institute of Pharmacogenetics, University Hospital Essen, University of Duisburg-Essen, Essen, Germany.
| | - Patrick Stelmach
- Institute of Pharmacogenetics, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | | | - Herbert Rübben
- Clinic of Urology, University Hospital Essen, University of Duisburg-Essen, Hufelandstr. 55, 45147, Essen, Germany
| | - Henning Reis
- Institute of Pathology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Kurt Werner Schmid
- Institute of Pathology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Hagen Sjard Bachmann
- Institute of Pharmacogenetics, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| |
Collapse
|
13
|
Liu J, Fu J, Duan Y, Wang G. Predictive Value of Gene Polymorphisms on Recurrence after the Withdrawal of Antithyroid Drugs in Patients with Graves' Disease. Front Endocrinol (Lausanne) 2017; 8:258. [PMID: 29085334 PMCID: PMC5649185 DOI: 10.3389/fendo.2017.00258] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Accepted: 09/19/2017] [Indexed: 12/20/2022] Open
Abstract
Graves' disease (GD) is one of the most common endocrine diseases. Antithyroid drugs (ATDs) treatment is frequently used as the first-choice therapy for GD patients in most countries due to the superiority in safety and tolerance. However, GD patients treated with ATD have a relatively high recurrence rate after drug withdrawal, which is a main limitation for ATD treatment. It is of great importance to identify some predictors of the higher recurrence risk for GD patients, which may facilitate an appropriate therapeutic approach for a given patient at the time of GD diagnosis. The genetic factor was widely believed to be an important pathogenesis for GD. Increasing studies were conducted to investigate the relationship between gene polymorphisms and the recurrence risk in GD patients. In this article, we updated the current literatures to highlight the predictive value of gene polymorphisms on recurrence risk in GD patients after ATD withdrawal. Some gene polymorphisms, such as CTLA4 rs231775, human leukocyte antigen polymorphisms (DRB1*03, DQA1*05, and DQB1*02) might be associated with the high recurrence risk in GD patients. Further prospective studies on patients of different ethnicities, especially studies with large sample sizes, and long-term follow-up, should be conducted to confirm the predictive roles of gene polymorphism.
Collapse
Affiliation(s)
- Jia Liu
- Department of Endocrinology; Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Jing Fu
- Department of Endocrinology; Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Yan Duan
- Department of Endocrinology; Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Guang Wang
- Department of Endocrinology; Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- *Correspondence: Guang Wang,
| |
Collapse
|
14
|
Wieneke H, Svendsen JH, Lande J, Spencker S, Martinez JG, Strohmer B, Toivonen L, Le Marec H, Garcia-Fernandez FJ, Corrado D, Huertas-Vazquez A, Uy-Evanado A, Rusinaru C, Reinier K, Foldesi C, Hulak W, Chugh SS, Siffert W. Polymorphisms in the GNAS Gene as Predictors of Ventricular Tachyarrhythmias and Sudden Cardiac Death: Results From the DISCOVERY Trial and Oregon Sudden Unexpected Death Study. J Am Heart Assoc 2016; 5:JAHA.116.003905. [PMID: 27895044 PMCID: PMC5210425 DOI: 10.1161/jaha.116.003905] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Background Population‐based studies suggest that genetic factors contribute to sudden cardiac death (SCD). Methods and Results In the first part of the present study (Diagnostic Data Influence on Disease Management and Relation of Genetic Polymorphisms to Ventricular Tachy‐arrhythmia in ICD Patients [DISCOVERY] trial) Cox regression was done to determine if 7 single‐nucleotide polymorphisms (SNPs) in 3 genes coding G‐protein subunits (GNB3, GNAQ, GNAS) were associated with ventricular tachyarrhythmia (VT) in 1145 patients receiving an implantable cardioverter‐defibrillator (ICD). In the second part of the study, SNPs significantly associated with VT were further investigated in 1335 subjects from the Oregon SUDS, a community‐based study analyzing causes of SCD. In the DISCOVERY trial, genotypes of 2 SNPs in the GNAS gene were nominally significant in the prospective screening and significantly associated with VT when viewed as recessive traits in post hoc analyses (TT vs CC/CT in c.393C>T: HR 1.42 [CI 1.11‐1.80], P=0.005; TT vs CC/CT in c.2273C>T: HR 1.57 [CI 1.18‐2.09], P=0.002). TT genotype in either SNP was associated with a HR of 1.58 (CI 1.26‐1.99) (P=0.0001). In the Oregon SUDS cohort significant evidence for association with SCD was observed for GNAS c.393C>T under the additive (P=0.039, OR=1.21 [CI 1.05‐1.45]) and recessive (P=0.01, OR=1.52 [CI 1.10‐2.13]) genetic models. Conclusions GNAS harbors 2 SNPs that were associated with an increased risk for VT in ICD patients, of which 1 was successfully replicated in a community‐based population of SCD cases. To the best of our knowledge, this is the first example of a gene variant identified by ICD VT monitoring as a surrogate parameter for SCD and also confirmed in the general population. Clinical Trial Registration URL: http://www.clinicaltrials.gov. Unique identifier: NCT00478933.
Collapse
Affiliation(s)
- Heinrich Wieneke
- Department of Cardiology, Contilia Heart and Vessel Centre, St. Marien-Hospital Mülheim, Mülheim, Germany
| | | | | | - Sebastian Spencker
- Department of Cardiology, DRK Kliniken Berlin I Köpenick, Berlin, Germany
| | | | - Bernhard Strohmer
- Department of Cardiology, Salzburger Landeskliniken, Paracelsus Private Medical University, Salzburg, Austria
| | - Lauri Toivonen
- Department of Cardiovascular Research, Meilahden Sairaala, Helsinki, Finland
| | - Hervé Le Marec
- Department of Cardiology and Vascular Medicine, Hospital Guillaume et René Laennec, Nantes, France
| | | | - Domenico Corrado
- Department of Cardiac, Thoracic, and Vascular Sciences, Medical School, University of Padua, Padua, Italy
| | | | | | | | | | - Csaba Foldesi
- Gottsegen National Institute of Cardiology, Budapest, Hungary
| | - Wieslaw Hulak
- Samodzielny Publiczny Szpital Wojewódzki Gorzowie Wielkopolski, Gorzow, Poland
| | | | - Winfried Siffert
- Institute of Pharmacogenetics, University Hospital Essen, Essen, Germany
| |
Collapse
|
15
|
Mottet F, Vardeny O, de Denus S. Pharmacogenomics of heart failure: a systematic review. Pharmacogenomics 2016; 17:1817-1858. [PMID: 27813451 DOI: 10.2217/pgs-2016-0118] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
BACKGROUND Heart failure (HF) and multiple HF-related phenotypes are heritable. Genes implicated in the HF pathophysiology would be expected to influence the response to treatment. METHODS We conducted a series of systematic literature searches on the pharmacogenetics of HF therapy to assess the current knowledge on this field. RESULTS Existing data related to HF pharmacogenomics are still limited. The ADRB1 gene is a likely candidate to predict response to β-blockers. Moreover, the cytochrome P450 2D6 coding gene (CYP2D6) clearly affects the pharmacokinetics of metoprolol, although the clinical impact of this association remains to be established. CONCLUSION Given the rising prevalence of HF and related costs, a more personalized use of HF drugs could have a remarkable benefit for patients, caregivers and healthcare systems.
Collapse
Affiliation(s)
- Fannie Mottet
- Faculty of Pharmacy, Université de Montréal, Montreal, Canada.,Montreal Heart Institute, Montreal, Canada
| | - Orly Vardeny
- Associate Professor of Pharmacy & Medicine, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Simon de Denus
- Faculty of Pharmacy, Université de Montréal, Montreal, Canada.,Montreal Heart Institute, Montreal, Canada
| |
Collapse
|
16
|
Noh BJ, Sung JY, Kim YW, Araujo ES, Kalil RK, Jung WW, Kim HS, Park YK. Clinicopathological implications of GNAS in Ewing sarcoma. Oncol Lett 2016; 11:4077-4082. [PMID: 27313744 DOI: 10.3892/ol.2016.4521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Accepted: 01/19/2016] [Indexed: 01/08/2023] Open
Abstract
The objective of the present study was to determine whether guanine nucleotide-binding protein α stimulating (GNAS) gene expression correlates with pathognomonic signs by analyzing the mutations, methylation status and G-protein α subunit (Gsα) expression of GNAS in Ewing sarcoma (ES). Formalin-fixed paraffin-embedded tissue samples from 77 patients with primary ES were obtained in South Korea, Argentina and Brazil, and were studied via methylation chip assay and direct sequencing of the GNAS gene and immunohistochemical analysis of Gsα. The mutation and methylation statuses of the GNAS gene were examined. Immunohistochemical results were measured with respect to proportion and staining intensity. The results revealed that GNAS genes in ES tumor samples were less methylated compared with normal controls. No mutations were detected at exons 8 or 9 of the GNAS locus complex on chromosome 20q13.3, indicating that the pathogenesis of ES was not associated with GNAS mutation. Gsα expression correlated well with the methylation status of the GNAS gene. Notably, high Gsα expression was detected more frequently in samples from living patients than from decedents, although this was not statistically significant (P=0.055). In conclusion, GNAS mutation is not associated with the pathogenesis of ES tumors. This finding may be used to differentiate ES tumors from metastatic bone lesions with morphological similarity to ES tumors. Analysis of the methylation status of the GNAS gene and immunohistochemical Gsα expression suggests that hypermethylated GNAS (low Gsα expression) in ES may be associated with unfavorable progression with a non-significant trend.
Collapse
Affiliation(s)
- Byeong-Joo Noh
- Department of Pathology, School of Medicine, Kyung Hee University Hospital, Seoul 02447, Republic of Korea
| | - Ji-Youn Sung
- Department of Pathology, School of Medicine, Kyung Hee University Hospital, Seoul 02447, Republic of Korea
| | - Youn Wha Kim
- Department of Pathology, School of Medicine, Kyung Hee University Hospital, Seoul 02447, Republic of Korea
| | - Eduardo Santini Araujo
- Laboratory of Orthopedic Pathology, Central Army Hospital, Buenos Aires C1426BOR, Argentina
| | - Ricardo Karam Kalil
- Molecular Pathology Division, SARAH Network of Rehabilitation Hospitals, Brasilia 70335-901, Brazil
| | - Woon-Won Jung
- Department of Biomedical Laboratory Science, College of Health Science, Korea University, Seoul 02708, Republic of Korea
| | - Hyun-Sook Kim
- Department of Biomedical Laboratory Science, College of Health Sciences, Cheongju University, Chungcheongbuk 28503 Republic of Korea
| | - Yong-Koo Park
- Department of Pathology, School of Medicine, Kyung Hee University Hospital, Seoul 02447, Republic of Korea
| |
Collapse
|
17
|
Pośpiech E, Ligęza J, Wilk W, Gołas A, Jaszczyński J, Stelmach A, Ryś J, Blecharczyk A, Wojas-Pelc A, Jura J, Branicki W. Variants of SCARB1 and VDR Involved in Complex Genetic Interactions May Be Implicated in the Genetic Susceptibility to Clear Cell Renal Cell Carcinoma. BIOMED RESEARCH INTERNATIONAL 2015; 2015:860405. [PMID: 25945350 PMCID: PMC4402472 DOI: 10.1155/2015/860405] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 02/21/2015] [Accepted: 03/15/2015] [Indexed: 11/17/2022]
Abstract
The current data are still inconclusive in terms of a genetic component involved in the susceptibility to renal cell carcinoma. Our aim was to evaluate 40 selected candidate polymorphisms for potential association with clear cell renal cell carcinoma (ccRCC) based on independent group of 167 patients and 200 healthy controls. The obtained data were searched for independent effects of particular polymorphisms as well as haplotypes and genetic interactions. Association testing implied position rs4765623 in the SCARB1 gene (OR = 1.688, 95% CI: 1.104-2.582, P = 0.016) and a haplotype in VDR comprising positions rs739837, rs731236, rs7975232, and rs1544410 (P = 0.012) to be the risk factors in the studied population. The study detected several epistatic effects contributing to the genetic susceptibility to ccRCC. Variation in GNAS1 was implicated in a strong synergistic interaction with BIRC5. This effect was part of a model suggested by multifactor dimensionality reduction method including also a synergy between GNAS1 and SCARB1 (P = 0.036). Significance of GNAS1-SCARB1 interaction was further confirmed by logistic regression (P = 0.041), which also indicated involvement of SCARB1 in additional interaction with EPAS1 (P = 0.008) as well as revealing interactions between GNAS1 and EPAS1 (P = 0.016), GNAS1 and MC1R (P = 0.031), GNAS1 and VDR (P = 0.032), and MC1R and VDR (P = 0.035).
Collapse
Affiliation(s)
- Ewelina Pośpiech
- Institute of Zoology, Faculty of Biology and Earth Sciences, Jagiellonian University, Gronostajowa 9, 30-387 Cracow, Poland
| | - Janusz Ligęza
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Cracow, Poland
| | - Wacław Wilk
- Centre of Oncology, Maria Skłodowska-Curie Memorial Institute, Garncarska 11, 31-115 Cracow, Poland
| | - Aniela Gołas
- Institute of Zoology, Faculty of Biology and Earth Sciences, Jagiellonian University, Gronostajowa 9, 30-387 Cracow, Poland
| | - Janusz Jaszczyński
- Centre of Oncology, Maria Skłodowska-Curie Memorial Institute, Garncarska 11, 31-115 Cracow, Poland
| | - Andrzej Stelmach
- Centre of Oncology, Maria Skłodowska-Curie Memorial Institute, Garncarska 11, 31-115 Cracow, Poland
| | - Janusz Ryś
- Centre of Oncology, Maria Skłodowska-Curie Memorial Institute, Garncarska 11, 31-115 Cracow, Poland
| | - Aleksandra Blecharczyk
- Institute of Zoology, Faculty of Biology and Earth Sciences, Jagiellonian University, Gronostajowa 9, 30-387 Cracow, Poland
| | - Anna Wojas-Pelc
- Department of Dermatology, Collegium Medicum of the Jagiellonian University, Skawińska 8, 31-066 Cracow, Poland
| | - Jolanta Jura
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Cracow, Poland
| | - Wojciech Branicki
- Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Cracow, Poland
| |
Collapse
|
18
|
Gong HY, Hu WG, Wang XL, Zhu F, Song QB. TT genotype of GNAS1 T393C polymorphism predicts better outcome of advanced non-small cell lung cancer patients. World J Gastrointest Oncol 2014; 6:444-449. [PMID: 25516778 PMCID: PMC4266817 DOI: 10.4251/wjgo.v6.i12.444] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 05/07/2014] [Accepted: 11/03/2014] [Indexed: 02/05/2023] Open
Abstract
AIM: To evaluate the potential prognostic value of GNAS1 T393C polymorphism in advanced non-small cell lung cancer.
METHODS: We extracted genomic DNA from the peripheral blood leucocytes of 94 patients with advanced non-small cell lung cancer. Quantitative real-time polymerase chain reaction was used to determine the allelic discrimination. The correlation between genotype and overall survival was evaluated using the multivariate analysis and Kaplan-Meier approach.
RESULTS: Thirty-eight out of 94 (40%) patients displayed a TT genotype, 29 out of 94 (31%) a CT genotype and 27 out of 94 (29%) a CC genotype. The median survival of TT (25 mo) genotype carriers was longer than CT (12 mo) or CC (8 mo) genotype carriers. The favorable TT genotype predicted better overall survival (OS) (2-year OS: 48%; P =0.01) compared with CT (2-year OS: 18%) or CC (2-year OS: 15%) genotype. However, dichotomization between C-genotypes (CC + CT) and T-genotypes (TT) revealed significantly lower survival rates (2-year OS: 16%; P = 0.01) for C allele carriers.
CONCLUSION: Our data provided strong evidence that the GNAS1 T393C genetic polymorphism influenced the prognosis in advanced non-small lung cancer with a worse outcome for C allele carriers.
Collapse
|
19
|
Cao X, Hong X, Jia X, Zhang L, Chen G. Single-nucleotide polymorphism rs41736 located in MET was significantly associated with prognosis of small cell lung cancer patients. Med Oncol 2014; 31:333. [PMID: 25416047 DOI: 10.1007/s12032-014-0333-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 11/06/2014] [Indexed: 12/11/2022]
Abstract
MET has been suggested to have an intimate relationship with small cell lung cancer (SCLC) and might be a promising therapeutic target. To date, relatively limited reports have been explored on MET mutational status in SCLC patients. To investigate the relationship between MET mutations and SCLC, 68 Chinese patients surgically treated for SCLC were enrolled. MET mutational analyses were performed in tumors, adjacent normal tissues as well as in lymph nodes with no metastasis nonadherent to tumor tissues using Sanger sequencing after PCR. The same mutation types were found in tumors, adjacent normal tissues as well as lymph nodes, including the only missense mutation N375S encoding semaphorin domain in exon 2 in 4 patients (5.9%), one single-nucleotide polymorphism (SNP) rs35775721: C>T also encoding semaphorin domain as heterozygous in 10 cases (14.7%) and another SNP rs41736: C>T encoding tyrosine kinase domain in exon 20 existing in 49 cases (72.1%). In survival analysis, the wild genotype CC-carriers of rs41736 conferred a significantly shorter progression-free survival (PFS) and overall survival (OS) compared to CT + TT-carriers (HR 0.455, 95% CI 0.229-0.904; HR 0.226, 95% CI 0.099-0.515, for PFS and OS, respectively) in limited-stage SCLC patients. We also found that the lymph node status was significantly associated with OS, and the shorter OS was present in positive group (HR 2.187, 95% CI 1.170-4.088). In this study, rs41736 polymorphism of MET was first found to be associated with prognosis of limited-stage SCLC patients and could be considered as a prognostic marker for limited-stage SCLC.
Collapse
Affiliation(s)
- Xu Cao
- Department of Pathology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, 507 Zhengmin Road, Shanghai, 200433, China
| | | | | | | | | |
Collapse
|
20
|
Meng LQ. Essential role of polymorphism of Gab1, EGFR, and EGF for the susceptibility of biliary tract cancer. Tumour Biol 2014; 35:12497-508. [PMID: 25217982 DOI: 10.1007/s13277-014-2568-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 08/28/2014] [Indexed: 01/02/2023] Open
Abstract
Cholangiocarcinoma is a malignant neoplasm arising from the epithelial cells lining the biliary ducts and its occurrence can be anatomically classified as within the liver (intrahepatic) or outside the liver (extrahepatic). Extrahepatic cholangiocarcinoma, which can be called as biliary tract cancer (BTC), is the most common form of this malignancy, and its etiology is still unclear. In this study, we tried to elucidate the complicated association between receptor tyrosine kinase (RTK) gene polymorphisms and susceptibility of BTC by analyzing frequency distribution of genotypes and alleles of GRB2-associated-binding protein 1 (Gab1), endothelial growth factor receptor (EGFR), and endothelial growth factor (EGF) and identified potential risk of BTC for people carrying specific genotype of Gab1 and EGFR. Two hundred twenty-five and 300 patients with BTC and cholelithiasis (gallstone (GS)), respectively, and 300 controls matched by age, sex, and ethnicity with patients were recruited from Shengjing Hospital of China Medical University from January 2008 to July 2011 with informed consents. Genomic DNA of BTC group was extracted and purified from formalin-fixed, paraffin-embedded tumor tissue sections using QiAamp DNA FFPE Tissue kit. For GS group and controls, DNA was extracted from peripheral blood leukocytes using genomic DNA extraction kit from Aid Lab. Target genes of RTK family were identified from National Center of Biotechnology Information (NCBI) SNP database and Japanese Single Nucleotide Polymorphisms (JSNP) database. Frequency distribution of genotypes and alleles was analyzed using HapMap Project database. All of the statistical analysis was conducted with SPSS 13.0 software. Eight loci were identified for Gab1 (4), EGFR (3), and EGF (1) as the target single-nucleotide polymorphisms (SNPs) for the association of gene polymorphisms and BTC. A/A genotype and A allele of rs3805246 in Gab1 and G/G genotype and G allele of rs2017000 in EGFR were significantly higher in BTC group than in GS group or controls. After controlling for BMI, age, gender, and smoking habit, patients with "A/A + G/A" had 2.154 times odds to have BTC; as for patients with "A/A" only, they still had 1.976 times odds to have BTC. In the rs2017000 of EGFR, patients with "G/G + G/A" had 1.772 times odds to have BTC, and patients with "G/G" only had 1.530 times odds to have BTC. Furthermore, patients with A/A in rs3805246 and G/G in rs2017000 simultaneously had 1.620 times chance to have BTC than people with other genotypes. This study explored the independent potential effect of EGFR signaling transduction pathway and its downstream element Gab1 and the gene-gene interaction on the disease mechanism of BTC in the perspective of genetics and molecular epidemiology.
Collapse
Affiliation(s)
- Ling-Qin Meng
- Department of General Surgery, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Heping District, Shenyang, Liaoning, 110004, China,
| |
Collapse
|
21
|
Teoh JP, Park KM, Wang Y, Hu Q, Kim S, Wu G, Huang S, Maihle N, Kim IM. Endothelin-1/endothelin A receptor-mediated biased signaling is a new player in modulating human ovarian cancer cell tumorigenesis. Cell Signal 2014; 26:2885-95. [PMID: 25194819 DOI: 10.1016/j.cellsig.2014.08.024] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 08/25/2014] [Indexed: 01/14/2023]
Abstract
The endothelin-1 (ET-1)/endothelin A receptor (ETAR, a G protein-coupled receptor) axis confers pleiotropic effects on both tumor cells and the tumor microenvironment, modulating chemo-resistance and other tumor-associated processes by activating Gαq- and β-arrestin-mediated pathways. While the precise mechanisms by which these effects occur remain to be elucidated, interference with ETAR signaling has emerged as a promising antitumor strategy in many cancers including ovarian cancer (OC). However, current clinical approaches using ETAR antagonists in the absence of a detailed knowledge of downstream signaling have resulted in multiple adverse side effects and limited therapeutic efficacy. To maximize the safety and efficacy of ETAR-targeted OC therapy, we investigated the role of other G protein subunits such as Gαs in the ETAR-mediated ovarian oncogenic signaling. In HEY (human metastatic OC) cells where the ET-1/ETAR axis is well-characterized, Gαs signaling inhibits ETAR-mediated OC cell migration, wound healing, proliferation and colony formation on soft agar while inducing OC cell apoptosis. Mechanistically, ET-1/ETAR is coupled to Gαs/cAMP signaling in the same ovarian carcinoma-derived cell line. Gαs/cAMP/PKA activation inhibits ETAR-mediated β-arrestin activation of angiogenic/metastatic Calcrl and Icam2 expression. Consistent with our findings, Gαs overexpression is associated with improved survival in OC patients in the analysis of the Cancer Genome Atlas data. In conclusion, our results indicate a novel function for Gαs signaling in ET-1/ETAR-mediated OC oncogenesis and may provide a rationale for a biased signaling mechanism, which selectively activates Gαs-coupled tumor suppressive pathways while blocking Gαq-/β-arrestin-mediated oncogenic pathways, to improve the targeting of the ETAR axis in OC.
Collapse
Affiliation(s)
- Jian-peng Teoh
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA
| | - Kyoung-mi Park
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA
| | - Yongchao Wang
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA
| | - Qiuping Hu
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA
| | - Sangmi Kim
- Cancer Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA
| | - Guangyu Wu
- Department of Pharmacology and Toxicology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA
| | - Shuang Huang
- Cancer Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA; Department of Biochemistry and Molecular Biology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA
| | - Nita Maihle
- Cancer Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA
| | - Il-man Kim
- Vascular Biology Center, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA; Department of Biochemistry and Molecular Biology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA.
| |
Collapse
|
22
|
Alakus H, Bollschweiler E, Hölscher AH, Warnecke-Eberz U, Frazer KA, Harismendy O, Lowy AM, Mönig SP, Eberz PM, Maus M, Drebber U, Siffert W, Metzger R. Homozygous GNAS 393C-allele carriers with locally advanced esophageal cancer fail to benefit from platinum-based preoperative chemoradiotherapy. Ann Surg Oncol 2014; 21:4375-82. [PMID: 24986238 DOI: 10.1245/s10434-014-3843-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Indexed: 01/13/2023]
Abstract
BACKGROUND Currently, patients with locally advanced esophageal cancer receive neoadjuvant chemoradiotherapy but only about half of these patients benefit from this treatment. GNAS T393C has been shown to predict the postoperative course in solid tumors and may therefore be useful for treatment stratification. The aim of the present study was to determine if the single-nucleotide polymorphism GNAS T393C can be used for treatment stratification in esophageal cancer patients. METHODS A total of 596 patients underwent surgical resection for esophageal carcinoma from 1996 to 2008; 279 patients received chemoradiotherapy prior to surgery (RTX-SURG group). All patients and a reference group of 820 healthy White individuals were genotyped for GNAS T393C. RESULTS The 5-year-survival rate for the 317 patients who underwent esophagectomy as initial treatment (SURG group) was 57 % for homozygous C-allele carriers (n = 99) and 43 % for T-allele carriers (n = 218; log- rank test p = 0.025). Multivariate analysis revealed the GNAS T393C genotype (p = 0.034), pT (p < 0.001), pN (p < 0.001) and age (p < 0.001) as prognostic of survival. Homozygous C-allele carriers with a locally advanced tumor stage (cT3/T4, n = 129) in the SURG group had a 5-year survival rate of 37 %, which, remarkably, exceeded the 5-year survival rate of 30 % for the entire RTX-SURG group (n = 279). In the RTX-SURG group, the GNAS T393C genotype did not show any prognostic significance. CONCLUSIONS Patients with a locally advanced esophageal cancer and an homozygous GNAS 393C genotype do not benefit from platinum-based neoadjuvant chemoradiotherapy, indicating that these patients should be treated by alternative treatment strategies.
Collapse
Affiliation(s)
- Hakan Alakus
- Department of General, Visceral and Cancer Surgery, University of Cologne, Cologne, Germany,
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Di Giacomo D, Lema Fernandez AG, Pierini T, Crescenzi B, Brandimarte L, Matteucci C, Testoni N, Mecucci C. The GNAS1 gene in myelodysplastic syndromes (MDS). Leuk Res 2014; 38:804-7. [PMID: 24795070 DOI: 10.1016/j.leukres.2014.03.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 03/19/2014] [Accepted: 03/21/2014] [Indexed: 10/25/2022]
Abstract
GNAS1 gene is located at the long arm of chromosome 20 (q13.32). GNAS1 gene deletion has never been investigated in MDS. A GNAS1 activating mutation (R201) was recently found in MDS. We applied FISH and DHPLC plus sequencing to investigate GNAS1 gene in MDS cases with and without del(20q) at karyotype.
Collapse
Affiliation(s)
- Danika Di Giacomo
- Hematology and Bone Marrow Transplantation Unit, University of Perugia, Perugia, Italy
| | | | - Tiziana Pierini
- Hematology and Bone Marrow Transplantation Unit, University of Perugia, Perugia, Italy
| | - Barbara Crescenzi
- Hematology and Bone Marrow Transplantation Unit, University of Perugia, Perugia, Italy
| | - Lucia Brandimarte
- Hematology and Bone Marrow Transplantation Unit, University of Perugia, Perugia, Italy
| | - Caterina Matteucci
- Hematology and Bone Marrow Transplantation Unit, University of Perugia, Perugia, Italy
| | - Nicoletta Testoni
- Institute of Hematology and Medical Oncology "Seràgnoli", University of Bologna, Bologna, Italy
| | - Cristina Mecucci
- Hematology and Bone Marrow Transplantation Unit, University of Perugia, Perugia, Italy.
| |
Collapse
|
24
|
Gupta H, Sakharwade SC, Angural A, Kotambail A, Bhat GK, Hande MH, D'Souza SC, Rao P, Kumari V, Saadi AV, Satyamoorthy K. Evidence for genetic linkage between a polymorphism in the GNAS gene and malaria in South Indian population. Acta Trop 2013; 128:571-7. [PMID: 23962387 DOI: 10.1016/j.actatropica.2013.08.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 07/08/2013] [Accepted: 08/12/2013] [Indexed: 12/12/2022]
Abstract
The complex imprinted GNAS locus which encodes G-alpha subunit (Gαs) is involved in a number of G-protein coupled signaling pathways in eukaryotic cells. Erythrocyte invasion by Plasmodium falciparum parasites is significantly regulated by protein of GNAS gene. This study was designed to evaluate the association between single nucleotide polymorphisms (SNPs) present in GNAS locus and susceptibility to malaria. In this case control study, individuals affected by P. falciparum malaria (n=230), Plasmodium vivax malaria (n=230) and normal controls (n=230) were tested for the association of eighteen (18) known SNPs to evaluate their role in the onset of the disease. There was no significant difference in genotype frequencies of all the SNPs tested between P. falciparum and P. vivax affected individuals. However, when Bonferroni correction for multiple comparisons were performed as a control, our results demonstrated alleles and genotypes of rs7121: C>T (NC_000020.10:g.57478807C>T), a silent polymorphism situated in the exon 5, were significantly (p<0.05) associated with susceptibility to malaria in the South Indians participants. Our results demonstrate that population specific polymorphisms that exist in GNAS gene may alter the risk of occurrence of malaria.
Collapse
|
25
|
Klenke S, Siffert W, Frey UH. Cloning and Characterization of theGNA11Promoter and its Regulation by Early Growth Response 1. Basic Clin Pharmacol Toxicol 2013; 113:316-24. [DOI: 10.1111/bcpt.12100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Accepted: 06/10/2013] [Indexed: 11/30/2022]
Affiliation(s)
- Stefanie Klenke
- Institut für Pharmakogenetik; Universität Duisburg-Essen and Universitätsklinikum Essen; Essen; Germany
| | - Winfried Siffert
- Institut für Pharmakogenetik; Universität Duisburg-Essen and Universitätsklinikum Essen; Essen; Germany
| | | |
Collapse
|
26
|
Zhang C, Wang L, Liao Q, Zhang L, Xu L, Chen C, Ye H, Xu X, Ye M, Duan S. Genetic associations with hypertension: meta-analyses of six candidate genetic variants. Genet Test Mol Biomarkers 2013; 17:736-42. [PMID: 23859711 DOI: 10.1089/gtmb.2013.0080] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
AIMS The aim of this study was to perform combined analyses of six genetic variants for the risk of hypertension. METHODS After a comprehensive literature search for genetic variants involved with the association study of hypertension, we harvested a total of five genes (six variants) for the current meta-analyses. These genes consisted of CYP4A11 (T8590C), RGS2 (1891-1892del TC and G638A), HTR2A (T102C), GNAS (T393C), and HSD3B1 (T→C Leu338). RESULTS A total of 20 studies among 13,816 cases and 19,248 controls were retrieved for the meta-analyses of six genetic variants. It was shown that the RGS2 1891-1892del TC (OR=1.10, 95% CI=1.02-1.19, p=0.02) polymorphism and the CYP4A11 T8590C (OR=1.19, 95% CI=1.00-1.41, p=0.05) polymorphism were significantly associated with increased risk of hypertension. No association was found between the other four variants and the risk of hypertension. CONCLUSION This meta-analysis revealed that the RGS2 1891-1892del TC polymorphism and CYP4A11 T8590C polymorphism were associated with hypertension risk. However, HSD3B1 T→C Leu338, HTR2A T102C, GNAS T393C, and RGS2 G638A polymorphisms were not associated with hypertension risk.
Collapse
Affiliation(s)
- Cheng Zhang
- 1 Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University , Ningbo, Zhejiang, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Mao YM, Liu ZQ, Chen BL, Guo D, Han CT, Yang LJ, Wang SY, Fan L, Zhou HH. Effect of 393T>C Polymorphism of GNAS1 Gene on Dobutamine Response in Chinese Healthy Subjects. J Clin Pharmacol 2013; 49:929-36. [DOI: 10.1177/0091270009337945] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
28
|
Uzunoglu FG, Heumann A, Musici S, Kutup A, Koenig A, Roch N, Thomssen A, Dohrmann T, Tsui TY, Mann O, Izbicki JR, Vashist YK. The T393C polymorphism of GNAS1 is a predictor for relapse and survival in resectable non-small cell lung cancer. Lung Cancer 2012. [PMID: 23201296 DOI: 10.1016/j.lungcan.2012.11.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
INTRODUCTION The GNAS1 T393C single nucleotide polymorphism (T393C-SNP) correlates with Gαs mRNA stability and protein expression and augmented apoptosis. Genetic germ line variations as stable and reproducible markers potentially serve as prognostic marker in oncology. The aim of this study was to evaluate the potential prognostic value of T393C-SNP in complete resected non-small cell lung cancer (NSCLC). PATIENTS AND METHODS In total 163 Caucasian patients, who had been surgically treated for NSCLC between 1998 and 2010, were included in this study. Genotyping of peripheral blood cells was performed by polymerase chain reaction and digestion using the restriction enzyme FokI. The T393C-SNP was correlated with clinic-pathological parameters and survival. Chi-square test, Kaplan-Meier estimator and cox regression hazard model were used to assess the prognostic value of the T393C-SNP. RESULTS C-allele carriers had a higher recurrence rate (p=0.018) and a shorter disease-free survival compared to homozygous T-allele carriers (12.26 months vs. 44.65 months, p=0.009). The overall survival in homozygous C allele carriers was shorter (19.10 months vs. 53.95 months, p=0.019). Multivariate Cox regression identified the CC genotype as a negative independent prognostic factor for recurrence (hazard ratio 2.36, p=0.007) and survival (hazard ratio 2.51, p=0.008). CONCLUSION Determination of T393C-SNP preoperatively potentially allows allocation of NSCLC patients into different risk profiles and may influence the therapeutic strategy.
Collapse
Affiliation(s)
- Faik Güntac Uzunoglu
- Department of General, Visceral and Thoracic Surgery, University Medical Centre of Hamburg-Eppendorf, Martinistr. 52, 20246 Hamburg, Germany
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Ruiz JR, Fiuza-Luces C, Buxens A, Cano-Nieto A, Gómez-Gallego F, Santiago C, Rodríguez-Romo G, Garatachea N, Lao JI, Morán M, Lucia A. Are centenarians genetically predisposed to lower disease risk? AGE (DORDRECHT, NETHERLANDS) 2012; 34:1269-1283. [PMID: 21894447 PMCID: PMC3448993 DOI: 10.1007/s11357-011-9296-3] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2011] [Accepted: 07/25/2011] [Indexed: 05/31/2023]
Abstract
Our study purpose was to compare a disease-related polygenic profile that combined a total of 62 genetic variants among (i) people reaching exceptional longevity, i.e., centenarians (n = 54, 100-108 years, 48 women) and (ii) ethnically matched healthy controls (n = 87, 19-43 years, 47 women). We computed a 'global' genotype score (GS) for 62 genetic variants (mutations/polymorphisms) related to cardiometabolic diseases, cancer or exceptional longevity, and also specific GS for main disease categories (cardiometabolic risk and cancer risk, including 36 and 24 genetic variations, respectively) and for exceptional longevity (7 genetic variants). The 'global' GS was similar among groups (centenarians: 31.0 ± 0.6; controls 32.0 ± 0.5, P = 0.263). We observed that the GS for hypertension, cancer (global risk), and other types of cancer was lower in the centenarians group compared with the control group (all P < 0.05), yet the difference became non significant after adjusting for sex. We observed significant between-group differences in the frequency of GSTT1 and GSTM1 (presence/absence) genotypes after adjusting for multiple comparisons. The likelihood of having the GSTT1 low-risk (functional) allele was higher in centenarians (odds ratio [OR] 5.005; 95% confidence interval [CI], 1.810-13.839), whereas the likelihood of having the GSTMI low-risk (functional) allele was similar in both groups (OR 1.295; 95% CI, 0.868 -1.931). In conclusion, we found preliminary evidence that Spanish centenarians have a lower genetic predisposition for cancer risk. The wild-type (i.e., functional) genotype of GSTT1, which is associated with lower cancer risk, might be associated with exceptional longevity, yet further studies with larger sample sizes must confirm these findings.
Collapse
Affiliation(s)
- Jonatan R Ruiz
- Department of Physical Education and Sport, School of Physical Activity and Sport Sciences, University of Granada, Granada, Spain.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Arjumand W, Ahmad ST, Nafees S, Ali N, Rashid S, Seth A, Sultana S. GNAS1 (Gαs) Gene T393C Polymorphism and Renal Cell Carcinoma Risk in a North Indian Population: A Case–Control Study. Genet Test Mol Biomarkers 2012; 16:1062-6. [DOI: 10.1089/gtmb.2012.0047] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Wani Arjumand
- Section of Molecular Carcinogenesis and Chemoprevention, Department of Medical Elementology and Toxicology, Faculty of Science, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Shiekh Tanveer Ahmad
- Section of Molecular Carcinogenesis and Chemoprevention, Department of Medical Elementology and Toxicology, Faculty of Science, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Sana Nafees
- Section of Molecular Carcinogenesis and Chemoprevention, Department of Medical Elementology and Toxicology, Faculty of Science, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Nemat Ali
- Section of Molecular Carcinogenesis and Chemoprevention, Department of Medical Elementology and Toxicology, Faculty of Science, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Summya Rashid
- Section of Molecular Carcinogenesis and Chemoprevention, Department of Medical Elementology and Toxicology, Faculty of Science, Jamia Hamdard (Hamdard University), New Delhi, India
| | - Amlesh Seth
- Department of Urology, All India Institute of Medical Sciences, New Delhi, India
| | - Sarwat Sultana
- Section of Molecular Carcinogenesis and Chemoprevention, Department of Medical Elementology and Toxicology, Faculty of Science, Jamia Hamdard (Hamdard University), New Delhi, India
| |
Collapse
|
31
|
Xie FJ, Zhao P, Kou JY, Hong W, Fu L, Hu L, Hong D, Su D, Gao Y, Zhang YP. The T393C polymorphism of GNAS1 as a predictor for chemotherapy sensitivity and survival in advanced non-small-cell lung cancer patients treated with gemcitabine plus platinum. Cancer Chemother Pharmacol 2012; 69:1443-8. [PMID: 22371153 DOI: 10.1007/s00280-012-1849-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2011] [Accepted: 02/06/2012] [Indexed: 01/30/2023]
Abstract
PURPOSE The GNAS1 gene is linked to proapoptotic signaling and correlates closely with clinical outcomes in many human cancers. The aim of this study was to evaluate whether the T393C polymorphism of the GNAS1 gene could be used as a chemotherapy sensitivity and prognosis predictive marker of advanced non-small-cell lung cancer (NSCLC) treated with gemcitabine plus platinum (GP). METHODS In this study, we performed the PCR-restriction fragment length polymorphism assay to examine the genotypes of the GNAS1 T393C polymorphism in 131 peripheral blood DNA specimens from advanced NSCLC patients with GP treatment. RESULTS The frequencies of the CC, CT, and TT genotypes in 131 advanced NSCLC cases were 25.2, 47.4, and 26.7%, respectively. The favorable TT genotype was significantly correlated with better overall survival (OS; P < 0.05) and longer progress-free survival (PFS; P < 0.05) compared with the CT or CC genotype. In the multivariate Cox proportional hazards model, the GNAS1 T393C polymorphism was independently associated with overall survival after adjusting the clinicopathological factors (P < 0.05). CONCLUSIONS This study suggests that the TT genotype of the GNAS1 T393C polymorphism could be an independent prognostic marker to predict chemotherapy sensitivity, favorable OS and PFS in advanced NSCLC patients with GP treatment.
Collapse
Affiliation(s)
- Fa-Jun Xie
- Department of Medical Oncology, Zhejiang Cancer Hospital, 38 Guangji Road, Hangzhou City, Zhejiang Province, 310022, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Specific changes in the expression of imprinted genes in prostate cancer--implications for cancer progression and epigenetic regulation. Asian J Androl 2012; 14:436-50. [PMID: 22367183 DOI: 10.1038/aja.2011.160] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Epigenetic dysregulation comprising DNA hypermethylation and hypomethylation, enhancer of zeste homologue 2 (EZH2) overexpression and altered patterns of histone modifications is associated with the progression of prostate cancer. DNA methylation, EZH2 and histone modifications also ensure the parental-specific monoallelic expression of at least 62 imprinted genes. Although it is therefore tempting to speculate that epigenetic dysregulation may extend to imprinted genes, expression changes in cancerous prostates are only well documented for insulin-like growth factor 2 (IGF2). A literature and database survey on imprinted genes in prostate cancer suggests that the expression of most imprinted genes remains unchanged despite global disturbances in epigenetic mechanisms. Instead, selective genetic and epigenetic changes appear to lead to the inactivation of a sub-network of imprinted genes, which might function in the prostate to limit cell growth induced via the PI3K/Akt pathway, modulate androgen responses and regulate differentiation. Whereas dysregulation of IGF2 may constitute an early change in prostate carcinogenesis, inactivation of this imprinted gene network is rather associated with cancer progression.
Collapse
|
33
|
Roth E, Selinski S, Schikowsky C, Seidel T, Volkert F, Blaszkewicz M, Hengstler JG, Golka K. Bladder cancer survival in a former industrial area in Saxony-Anhalt, Germany. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2012; 75:1216-1225. [PMID: 22994575 DOI: 10.1080/15287394.2012.709168] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Long-term follow-ups on bladder cancer patients from highly industrialized areas are rare. Therefore, we present a follow-up of bladder cancer patients from the greater area Lutherstadt Wittenberg, a center of the chemical industry of the former German Democratic Republic. Relapse-free survival times of 213 confirmed bladder cancer cases from the greater area Lutherstadt Wittenberg were collected between 2008 and 2009. Data on lifestyle and occupational exposure to potential carcinogens was recorded by questionnaire. Genotypes of N-acetyltransferase 2 (NAT2), glutathione S-transferase M1 (GSTM1), glutathione S-transferase T1 (GSTT1), rs710521, and rs9642880 were determined by standard methods. Cox models were used to evaluate differences in relapse-free survival. Clear differences in relapse-free survival could be observed for the number of relapses, multilocular tumor growth, and relapses with higher staging or grading than the primary tumor, as well as GSTT1. None of the other investigated polymorphisms showed significant impact on prognosis. This is the first study on two recently detected single-nucleotide polymorphisms (SNPs) showing that these polymorphisms may also contribute to shorter relapse-free times.
Collapse
Affiliation(s)
- Emanuel Roth
- Department of Urology, Paul Gerhardt Foundation, Lutherstadt Wittenberg, Germany
| | | | | | | | | | | | | | | |
Collapse
|
34
|
El Hindy N, Lambertz N, Bachmann HS, Frey UH, Adamzik M, Zhu Y, Sure U, Siffert W, Sandalcioglu IE. Role of the GNAS1 T393C polymorphism in patients with glioblastoma multiforme. J Clin Neurosci 2011; 18:1495-9. [PMID: 21924916 DOI: 10.1016/j.jocn.2011.02.044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Revised: 02/28/2011] [Accepted: 02/28/2011] [Indexed: 11/29/2022]
Abstract
The T393C polymorphism of the GNAS1 locus, which encodes the Gαs protein, has recently been found to be associated with patient outcome in various malignancies. We investigated the association between GNAS1 genotype and survival among patients suffering from glioblastoma multiforme (GBM). One hundred and sixty-two patients with GBM were retrospectively investigated. Inclusion criteria were availability of DNA and, for surviving patients, a follow-up of at least 24 months. The results were analysed based on clinical data, type of surgical intervention, adjuvant therapy, and 2-year survival. At the 2-year follow up, 79.6% of patients had died. Two-year survival rates were as follows: CC-homozygous patients, 15.8%; CT-heterozygous patients, 23.1%; and TT-homozygous patients, 18.2% (p = 0.461). Subgroup analysis revealed different 2-year survival rates in the group that underwent stereotactic biopsy, with 0% for CC-homozygous, 2.8% for CT-heterozygous, and 15.4% survival for TT-homozygous patients, but the differences were not statistically significant (p = 0.229). Our results indicate that there is no association between the GNAS1 T393C polymorphism and 2-year survival among patients with GBM.
Collapse
Affiliation(s)
- N El Hindy
- Department of Neurosurgery, Medical Faculty, University of Duisburg-Essen, Hufelandstraße 55, 45122 Essen, Germany.
| | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Liu Z, Turan S, Wehbi VL, Vilardaga JP, Bastepe M. Extra-long Gαs variant XLαs protein escapes activation-induced subcellular redistribution and is able to provide sustained signaling. J Biol Chem 2011; 286:38558-38569. [PMID: 21890629 DOI: 10.1074/jbc.m111.240150] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Murine models indicate that Gαs and its extra-long variant XLαs, both of which are derived from GNAS, markedly differ regarding their cellular actions, but these differences are unknown. Here we investigated activation-induced trafficking of Gαs and XLαs, using immunofluorescence microscopy, cell fractionation, and total internal reflection fluorescence microscopy. In transfected cells, XLαs remained localized to the plasma membrane, whereas Gαs redistributed to the cytosol after activation by GTPase-inhibiting mutations, cholera toxin treatment, or G protein-coupled receptor agonists (isoproterenol or parathyroid hormone (PTH)(1-34)). Cholera toxin treatment or agonist (isoproterenol or pituitary adenylate cyclase activating peptide-27) stimulation of PC12 cells expressing Gαs and XLαs endogenously led to an increased abundance of Gαs, but not XLαs, in the soluble fraction. Mutational analyses revealed two conserved cysteines and the highly charged domain as being critically involved in the plasma membrane anchoring of XLαs. The cAMP response induced by M-PTH(1-14), a parathyroid hormone analog, terminated quickly in HEK293 cells stably expressing the type 1 PTH/PTH-related peptide receptor, whereas the response remained maximal for at least 6 min in cells that co-expressed the PTH receptor and XLαs. Although isoproterenol-induced cAMP response was not prolonged by XLαs expression, a GTPase-deficient XLαs mutant found in certain tumors and patients with fibrous dysplasia of bone and McCune-Albright syndrome generated more basal cAMP accumulation in HEK293 cells and caused more severe impairment of osteoblastic differentiation of MC3T3-E1 cells than the cognate Gαs mutant (gsp oncogene). Thus, activated XLαs and Gαs traffic differently, and this may form the basis for the differences in their cellular actions.
Collapse
Affiliation(s)
- Zun Liu
- Endocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114
| | - Serap Turan
- Endocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114; Pediatric Endocrinology, Marmara University School of Medicine Hospital, 34662 Istanbul, Turkey
| | - Vanessa L Wehbi
- Laboratory for G Protein-coupled Receptor Biology, Department of Pharmacology and Chemical Biology, University of Pittsburgh, School of Medicine, Pittsburgh, Pennsylvania 15213
| | - Jean-Pierre Vilardaga
- Endocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114; Laboratory for G Protein-coupled Receptor Biology, Department of Pharmacology and Chemical Biology, University of Pittsburgh, School of Medicine, Pittsburgh, Pennsylvania 15213
| | - Murat Bastepe
- Endocrine Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114.
| |
Collapse
|
36
|
Eisenhardt A, Scherag A, Jöckel KH, Reis H, Rübben H, Siffert W. Lack of association of the genotype in the GNAS Fok I polymorphism and prostate cancer. Urol Int 2011; 87:80-6. [PMID: 21677417 DOI: 10.1159/000325398] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2010] [Accepted: 02/14/2011] [Indexed: 01/12/2023]
Abstract
BACKGROUND G proteins are ubiquitously expressed signal transduction proteins playing a key role in multiple signal transduction pathways. The Gαs subunit has been considered as an apoptosis factor. In this study the role of GNAS T393C genotypes of the GNAS gene encoding Gαs was analyzed for its influence on the development and progression of prostate cancer. METHODS Genotyping of the GNAS T393C polymorphism in 196 prostate cancer patients and 200 healthy controls was performed by DNA extraction followed by PCR and restriction analysis. RESULTS We observed no evidence of effects related to GNAS T393C genotype as demonstrated by a comparison of the genotype distribution in prostate cancer patients and healthy controls, the genotype distribution dependent on grade of the primary diagnosis or data on clinical follow-up. CONCLUSIONS In conclusion, this study did not demonstrate an association between the GNAS T393C genotype and prostate cancer though such a relationship has been described for other cancer entities.
Collapse
Affiliation(s)
- A Eisenhardt
- Praxisklinik Urologie Rhein-Ruhr, Mülheim an der Ruhr, Germany. Andreas.Eisenhardt @ googlemail.com
| | | | | | | | | | | |
Collapse
|
37
|
Klenke S, Siffert W. SNPs in genes encoding G proteins in pharmacogenetics. Pharmacogenomics 2011; 12:633-54. [DOI: 10.2217/pgs.10.203] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Heterotrimeric guanine-binding proteins (G proteins) transmit signals from the cell surface to intracellular signal cascades and are involved in various physiological and pathophysiological processes. Polymorphisms in the genes GNB3 (encoding the Gβ3 subunit), GNAS (encoding the Gαs subunit) and GNAQ (encoding the Gαq subunit) have been the primary focus of investigation. Polymorphisms in these genes could be associated with different complex phenotypes underlining that alterations in G-protein signaling can cause multiple disorders. G proteins present a point of convergence or ‘bottleneck’ between various receptors and effectors, thus making them a sensible tool for pharmacogenetic studies. The pharmacogenetic studies performed to date mostly demonstrate an association between G-protein polymorphisms and response to therapy or occurrence of adverse drug effects. Therefore, polymorphisms in genes encoding G-protein subunits may help to individualize drug treatment in various diseases with regard to both efficacy and safety.
Collapse
Affiliation(s)
| | - Winfried Siffert
- Institut für Pharmakogenetik, Universität Duisburg-Essen, Hufelandstr. 55, 45122 Essen, Germany
| |
Collapse
|
38
|
Frey UH, Fritz A, Rotterdam S, Schmid KW, Potthoff A, Altmeyer P, Siffert W, Brockmeyer NH. GNAS1 T393C polymorphism and disease progression in patients with malignant melanoma. Eur J Med Res 2011; 15:422-7. [PMID: 21156401 PMCID: PMC3352186 DOI: 10.1186/2047-783x-15-10-422] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
Background Once metastasized, despite a variety of therapeutic options, the prognosis of patients with malignant melanoma (MM) is still poor. Therefore, the search for reliable markers to identify patients with high risk of disease progression is of high clinical importance. We have recently shown that TT genotypes of the single-nucleotide polymorphism (SNP) T393C in the gene GNAS1 are significantly associated with better outcome in a variety of carcinomas. Patients In the present study we assessed whether the T393C SNP is also related to the clinical course in MM. 328 patients with MM were retrospectively genotyped and genotypes were correlated with clinical outcome. Results While the allele frequency in the MM group (fC 0.52) did not significantly differ from that of healthy blood donors, the T393C SNP was associated with tumor progression of MM. Carriers of the C-allele showed a significantly more severe tumor progression as estimated from the time period to develop metastasis (HR 2.2, 95% CI 1.1-3.2, p = 0.017). Proportions of 5-year metastasis-free intervals were 87.1% for TT genotypes and 66.0% for C-allele carriers. Moreover, multivariable Cox regression analysis including tumor stage and melanoma subtype proved the T393C polymorphism to be an independent factor for metastasis (p = 0.012). Conclusions In summary, the GNAS1 T393C SNP represents a genetic host factor for predicting tumor progression also in patients with MM; genotyping of this SNP may contribute to better define patients who could benefit from an early individualized therapy.
Collapse
Affiliation(s)
- U H Frey
- Institut für Pharmakogenetik, Universität Duisburg-Essen, Germany
| | | | | | | | | | | | | | | |
Collapse
|
39
|
Vashist YK, Kutup A, Musici S, Yekebas EF, Mina S, Uzunoglu G, Zehler O, Koenig A, Cataldegirmen G, Bockhorn M, Effenberger K, Kalinin V, Pantel K, Izbicki JR. The GNAS1 T393C single nucleotide polymorphism predicts the natural postoperative course of complete resected esophageal cancer. Cell Oncol (Dordr) 2011; 34:281-8. [PMID: 21340746 DOI: 10.1007/s13402-011-0016-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2011] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND Genetic variations in cancer patients may serve as important prognostic indicators of clinical outcome. The GNAS1 T393C single nucleotide polymorphism (SNP) diversely correlates with the clinical outcome in cancer. The aim of this study was to evaluate the potential prognostic value of T393C-SNP in complete resected only surgically treated esophageal cancer (EC). METHODS Genomic DNA was extracted from peripheral blood leucocytes of 190 patients who underwent only complete surgical resection for EC. T393C-SNP was correlated with clinic-pathological parameters, tumor cell dissemination in bone marrow (DTC) and clinical outcome. RESULTS T-allele carriers had more advanced disease due to presence of lymph node metastasis (P < 0.0001) and DTC (P = 0.01) and higher recurrence rate (P = 0.01) compared to CC genotype. The disease-free (P < 0.001) and overall survival (P < 0.001) was better in CC compared to TT and TC patients. In the multivariate Cox regression disease-stage adjusted analysis the T393C-SNP was identified as a strong independent prognostic factor for recurrence (hazard ratio 1.8, P = 0.01) and survival (hazard ratio 2.5, P < 0.001) in EC patients. CONCLUSION Determination of T393C-SNP preoperatively will allow allocation of EC patients into different risk profiles which may help to stratify patients eligible for neoadjuvant and or adjuvant therapy.
Collapse
Affiliation(s)
- Yogesh Kumar Vashist
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Germany.
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
40
|
Tominaga EI, Tsuda H, Arao T, Nishimura S, Takano M, Kataoka F, Nomura H, Hirasawa A, Aoki D, Nishio K. Amplification of GNAS may be an independent, qualitative, and reproducible biomarker to predict progression-free survival in epithelial ovarian cancer. Gynecol Oncol 2010; 118:160-6. [PMID: 20537689 DOI: 10.1016/j.ygyno.2010.03.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Revised: 03/11/2010] [Accepted: 03/16/2010] [Indexed: 01/12/2023]
Abstract
OBJECTIVES The purpose of this study was to identify genes that predict progression-free survival (PFS) in advanced epithelial ovarian cancer (aEOC) receiving standard therapy. METHODS We performed microarray analysis on laser microdissected aEOC cells. All cases received staging laparotomy and adjuvant chemotherapy (carboplatin+paclitaxel) as primary therapy. RESULTS Microarray analysis identified 50 genes differentially expressed between tumors of patients with no evidence of disease (NED) or evidence of disease (ED) (p<0.001). Six genes (13%) were located at 8q24, and 9 genes (19.6%), at 20q11-13. The ratio of selected gene set/analyzed gene set in chromosomes 8 and 20 are significantly higher than that in other chromosome regions (6/606 vs. 32/13656, p=0.01) and (12/383 vs. 32/13656, p=1.3 x 10(-)(16)). We speculate that the abnormal chromosomal distribution is due to genomic alteration and that these genes may play an important role in aEOC and choose GNAS (GNAS complex locus, NM_000516) on 20q13 based on the p value and fold change. Genomic PCR of aEOC cells also showed that amplification of GNAS was significantly correlated with unfavorable PFS (p=0.011). Real-time quantitative RT-PCR analysis of independent samples revealed that high mRNA expression levels of the GNAS genes, located at chromosome 20q13, was significantly unfavorable indicators of progression-free survival (PFS). Finally, GNAS amplification was an independent prognostic factor for PFS. CONCLUSIONS Our results suggest that GNAS gene amplification may be an independent, qualitative, and reproducible biomarker of PFS in aEOC.
Collapse
Affiliation(s)
- Ei-ichiro Tominaga
- Department of Obstetrics and Gynecology, School of Medicine, Keio University, 35 Shinanomachi, Shinjyuku-ku, Tokyo, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Fingas CD, Katsounas A, Kahraman A, Siffert W, Jochum C, Gerken G, Nückel H, Canbay A. Prognostic assessment of three single-nucleotide polymorphisms (GNB3 825C>T, BCL2-938C>A, MCL1-386C>G) in extrahepatic cholangiocarcinoma. Cancer Invest 2010; 28:472-8. [PMID: 19968497 DOI: 10.3109/07357900903095714] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND/AIMS Cholangiocellular carcinoma (CCA) has a devastating prognosis and markers enabling a precise prediction of the clinical outcome have long remained scarce. Recently, it has been demonstrated that genotype distribution of several single-nucleotide polymorphisms (SNPs) in genes that modulate G protein-signal transduction and apoptosis can serve as helpful predictive parameters in various carcinomas. We here aimed at extending the panel of SNPs suitable for predicting the outcome of CCA. METHODOLOGY Forty Caucasian patients with extrahepatic CCA and 40 age- and sex-matched healthy white Caucasians were genotyped to elucidate putative associations between clinical outcome and genotypes of the three following SNPs: G protein beta 3 (GNB3) 825C>T, B-cell-lymphoma-2 (Bcl-2) -938C>A, and myeloid cell leukemia-1 (Mcl-1) -386C>G. RESULTS Patients homozygous for the C allele of the GNB3 825C>T polymorphism exhibited a significant prolonged overall survival compared with patients displaying the CT or TT genotype (median survival [months]: 31 vs. 13 vs. 7; p < .05) and also showed lower bilirubin serum levels. Additionally, the CC genotype of the BCL2-938C>A polymorphism was associated with higher GLDH serum activities (U/l; 29.8 +/- 7.1 vs. 11.4 +/- 4.3 vs. 5.6 +/- 1.7 comparing CC vs. CA vs. AA; p < .05). Genotype distributions for all SNPs were not significantly different in patients vs. controls. CONCLUSIONS GNB3 825C>T SNP may be a novel independent prognostic marker for patients suffering from extrahepatic CCA with the CC genotype to be associated with a favorable clinical outcome. Further prospective studies are needed to confirm these results and reveal additional functional SNP effects.
Collapse
|
42
|
Alakus H, Mönig SP, Warnecke-Eberz U, Alakus G, Winde G, Drebber U, Schmitz KJ, Schmid KW, Riemann K, Siffert W, Bollschweiler E, Hölscher AH, Metzger R. Association of the GNAS1 T393C polymorphism with tumor stage and survival in gastric cancer. World J Gastroenterol 2009; 15:6061-7. [PMID: 20027678 PMCID: PMC2797662 DOI: 10.3748/wjg.15.6061] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To analyze the impact of the GNAS1 T393C polymorphism on prognosis and histopathology of gastric cancer.
METHODS: Genomic DNA was extracted from paraffin-embedded tissues of 122 patients with primary gastric carcinoma and from the blood of 820 healthy white individuals. Allelic discrimination was performed by quantitative real-time polymerase chain reaction. Genotyping was correlated with histopathologic parameters and with overall survival according to the Kaplan-Meier approach and with multivariate analysis by multiple stepwise regression.
RESULTS: Thirty-nine (32%) patients displayed a CC genotype, 57 (46.7%) a CT genotype and 26 (21.3%) a TT genotype. The frequency of the C allele (fC) in the patient group was 0.55, which was not significantly different from that of healthy blood donors. The distribution was compatible with the Hardy-Weinberg equilibrium. Analysis of clinicopathological parameters did not show any significant correlation of the T393C genotype with gender (P = 0.50), differentiation (P = 0.29), pT-category (P = 0.19), pN-category (P = 0.30), pM-category (P = 0.25), R-category (P = 0.95), the classifications according to WHO (P = 0.34), Laurén (P = 0.16), Goseki (P = 1.00) and Ming (P = 0.74). Dichotomization between C+ (CC+CT) and C-genotypes (TT), however, revealed significantly more advanced tumor stages (P = 0.023) and lower survival rates (P = 0.043) for C allele carriers.
CONCLUSION: The present study provides strong evidence to suggest that the GNAS1 T393C allele carrier status influences tumor progression and survival in gastric cancer with higher tumor stages and a worse outcome for C allele carriers.
Collapse
|
43
|
Frey UH, Adamzik M, Kottenberg-Assenmacher E, Jakob H, Manthey I, Broecker-Preuss M, Bergmann L, Heusch G, Siffert W, Peters J, Leineweber K. A novel functional haplotype in the human GNAS gene alters Gαs expression, responsiveness to β-adrenoceptor stimulation, and peri-operative cardiac performance. Eur Heart J 2009; 30:1402-1410. [DOI: 10.1093/eurheartj/ehn572] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
|
44
|
Yanamadala V, Negoro H, Denker BM. Heterotrimeric G proteins and apoptosis: intersecting signaling pathways leading to context dependent phenotypes. Curr Mol Med 2009; 9:527-45. [PMID: 19601805 PMCID: PMC2822437 DOI: 10.2174/156652409788488784] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Apoptosis, a programmed cell death mechanism, is a fundamental process during the normal development and somatic maintenance of all multicellular organisms and thus is highly conserved and tightly regulated through numerous signaling pathways. Apoptosis is of particular clinical importance as its dysregulation contributes significantly to numerous human diseases, primarily through changes in the expression and activation of key apoptotic regulators. Each of the four families of heterotrimeric G proteins (G(s), G(i/o), G(q/11) and G(12/13)) has been implicated in numerous cellular signaling processes, including proliferation, transformation, migration, differentiation, and apoptosis. Heterotrimeric G protein signaling is an important but not widely studied mechanism regulating apoptosis. G protein Signaling and Apoptosis broadly cover two large bodies of literature and share numerous signaling pathways. Examination of the intersection between these two areas is the focus of this review. Several studies have implicated signaling through each of the four heterotrimeric G protein families to regulate apoptosis within numerous disease contexts, but the mechanism(s) are not well defined. Each G protein family has been shown to stimulate and/or inhibit apoptosis in a context-dependent fashion through regulating numerous downstream effectors including the Bcl-2 family, NF-kappaB, PI3 Kinase, MAP Kinases, and small GTPases. These cell-type specific and G protein coupled receptor dependent effects have led to a complex body of literature of G protein regulation of apoptosis. Here, we review the literature and summarize apoptotic signaling through each of the four heterotrimeric G protein families (and the relevant G protein coupled receptors), and discuss limitations and future directions for research on regulating apoptosis through G protein coupled mechanisms. Continued investigation in this field is essential for the identification of important targets for pharmacological intervention in numerous diseases.
Collapse
Affiliation(s)
- Vijay Yanamadala
- Renal Division, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Hideyuki Negoro
- Renal Division, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| | - Bradley M. Denker
- Renal Division, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
| |
Collapse
|
45
|
Dudenbostel KJ, Neumann S, Baumgartner BG, Brenig B. Exclusion of a T>C sequence variant in exon 7 of the canine G(alphas) gene (GNAS1) as a causal gene for liver cancer. Anim Genet 2009; 40:792. [PMID: 19422361 DOI: 10.1111/j.1365-2052.2009.01901.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- K J Dudenbostel
- Institute of Veterinary Medicine, University of Göttingen, Burckhardweg 2, 37077 Göttingen, Germany
| | | | | | | |
Collapse
|
46
|
Developmental etiology for neuroanatomical and cognitive deficits in mice overexpressing Galphas, a G-protein subunit genetically linked to schizophrenia. Mol Psychiatry 2009; 14:398-415, 347. [PMID: 19030002 PMCID: PMC3312743 DOI: 10.1038/mp.2008.124] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Schizophrenia is a widespread psychiatric disorder, affecting 1% of people. Despite this high prevalence, schizophrenia is not well treated because of its enigmatic developmental origin. We explore here the developmental etiology of endophenotypes associated with schizophrenia using a regulated transgenic approach in mice. Recently, a polymorphism that increases mRNA levels of the G-protein subunit Galphas was genetically linked to schizophrenia. Here we show that regulated overexpression of Galphas mRNA in forebrain neurons of mice is sufficient to cause a number of schizophrenia-related phenotypes, as measured in adult mice, including sensorimotor gating deficits (prepulse inhibition of acoustic startle, PPI) that are reversed by haloperidol or the phosphodiesterase inhibitor rolipram, psychomotor agitation (hyperlocomotion), hippocampus-dependent learning and memory retrieval impairments (hidden water maze, contextual fear conditioning), and enlarged ventricles. Interestingly, overexpression of Galphas during development plays a significant role in some (PPI, spatial learning and memory and neuroanatomical deficits) but not all of these adulthood phenotypes. Pharmacological and biochemical studies suggest the Galphas-induced behavioral deficits correlate with compensatory decreases in hippocampal and cortical cyclic AMP (cAMP) levels. These decreases in cAMP may lead to reduced activation of the guanine exchange factor Epac (also known as RapGEF 3/4) as stimulation of Epac with the select agonist 8-pCPT-2'-O-Me-cAMP increases PPI and improves memory in C57BL/6J mice. Thus, we suggest that the developmental impact of a given biochemical insult, such as increased Galphas expression, is phenotype specific and that Epac may prove to be a novel therapeutic target for the treatment of both developmentally regulated and non-developmentally regulated symptoms associated with schizophrenia.
Collapse
|
47
|
Hirata H, Hinoda Y, Kikuno N, Suehiro Y, Shahryari V, Ahmad AE, Tabatabai ZL, Igawa M, Dahiya R. Bcl2
−938C/A Polymorphism Carries Increased Risk of Biochemical Recurrence After Radical Prostatectomy. J Urol 2009; 181:1907-12. [DOI: 10.1016/j.juro.2008.11.093] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2008] [Indexed: 01/18/2023]
Affiliation(s)
- Hiroshi Hirata
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California-San Francisco, San Francisco, California
| | - Yuji Hinoda
- Department of Oncology and Laboratory Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Nobuyuki Kikuno
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California-San Francisco, San Francisco, California
- Department of Urology, Shimane University School of Medicine, Izumo, Japan
| | - Yutaka Suehiro
- Department of Oncology and Laboratory Medicine, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Varahram Shahryari
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California-San Francisco, San Francisco, California
| | - Ardalan E. Ahmad
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California-San Francisco, San Francisco, California
| | - Z. Laura Tabatabai
- Department of Pathology, San Francisco Veterans Affairs Medical Center and University of California-San Francisco, San Francisco, California
| | - Mikio Igawa
- Department of Urology, Shimane University School of Medicine, Izumo, Japan
| | - Rajvir Dahiya
- Department of Urology, San Francisco Veterans Affairs Medical Center and University of California-San Francisco, San Francisco, California
| |
Collapse
|
48
|
Alakus H, Warnecke-Eberz U, Bollschweiler E, Mönig SP, Vallböhmer D, Brabender J, Drebber U, Baldus SE, Riemann K, Siffert W, Hölscher AH, Metzger R. GNAS1 T393C polymorphism is associated with histopathological response to neoadjuvant radiochemotherapy in esophageal cancer. THE PHARMACOGENOMICS JOURNAL 2009; 9:202-7. [PMID: 19274060 DOI: 10.1038/tpj.2009.5] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Recent studies have shown an association between the GNAS1 T393C polymorphism and clinical outcome for various solid tumors. In this study, we genotyped 51 patients from an observational trial on cisplatin/5-FU-based neoadjuvant radiochemotherapy of locally advanced esophageal cancer (cT2-4, Nx, M0) and genotyping was correlated with histomorphological tumor regression. The C-allele frequency in esophageal cancer patients was 0.49. Pearson's chi(2)-test showed a significant (P<0.05) association between tumor regression grades and T393C genotypes. Overall, 63% of the patients in the T-allele group (TT+CT) were minor responders with more than 10% residual vital tumor cells in resection specimens, whereas T(-) genotypes (CC) showed a major histopathological response with less than 10% residual vital tumor cells in 80%. The results support the role of the T393C polymorphism as a predictive molecular marker for tumor response to cisplatin/5-FU-based radiochemotherapy in esophageal cancer.
Collapse
Affiliation(s)
- H Alakus
- Department of General, Visceral and Cancer Surgery, Center for Integrated Oncology, University Hospital of Cologne, Cologne, Germany
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Characterization of intron-1 haplotypes of the G protein beta 4 subunit gene--association with survival and progression in patients with urothelial bladder carcinoma. Pharmacogenet Genomics 2009; 18:999-1008. [PMID: 18815590 DOI: 10.1097/fpc.0b013e3283117d79] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE Polymorphisms in genes encoding subunits of heterotrimeric G proteins have been repeatedly associated with various cancers. As G beta gamma signaling is presumed to be involved in proliferation and invasion processes, we analyzed genetic variations in regulatory regions of GNB4, which encodes the G beta 4 subunit, for their potential influence on cancer progression. EXPERIMENTAL DESIGN We characterized the promoter of GNB4 and screened the promoter as well as exon 1 and intron 1 for single nucleotide polymorphisms by sequencing 100 healthy controls. Following a haplotype analysis, we determined the functional impact upon gene expression of the defined haplotypes by reporter assays, electrophoretic mobility shift assay and western blot. In addition, these haplotypes were tested for their relation to the disease course of urothelial bladder cancer. RESULTS Whereas the promoter of GNB4 revealed no polymorphisms, 33 single nucleotide polymorphisms located in exon 1 and intron 1 were identified and together with a common exon-4 polymorphism implemented in haplotype analysis, which resulted in the determination of distinct haplotype blocks. Reporter activity was haplotype-dependently different (P=0.001). 1*1/1*1 showed increased G beta 4 protein (P=0.003), and bladder cancer patients carrying this diplotype displayed more progressive disease (P=0.046) and a significantly increased mortality (P=0.046). In multivariate analysis,the diplotypes were independent prognostic factors for survival and progression. CONCLUSION Intron-1 haplotypes of GNB4 may, thus, serve as predictive markers for progression and survival of patients suffering from bladder cancer.
Collapse
|
50
|
DARBEPOETIN α, A LONG-ACTING ERYTHROPOEITIN DERIVATE, DOES NOT ALTER LPS EVOKED MYOCARDIAL DEPRESSION AND GENE EXPRESSION OF BAX, BCL-XS, BCL-XL, BCL-2, AND TNF-α. Shock 2009; 31:50-4. [DOI: 10.1097/shk.0b013e31817c0188] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|