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Bartolomeo CS, Alves TN, Lemes RMR, Ivanov GZ, Morais RLT, Costa AJ, Nishino MS, Bassani TB, Pereira GJS, Smaili SS, Maciel RMB, Okuda LH, Braconi CT, Maricatto JT, Janini LMR, Ureshino RP, Prado CM, Stilhano RS. ACE2 OVEREXPRESSION CHANGES THE SARS-COV-2 INFECTION PROFILE IN BEAS-2B CELLS. Cytotherapy 2021. [PMID: 33189572 PMCID: PMC8079860 DOI: 10.1016/j.jcyt.2021.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Background Aims Methods Results Conclusion
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Barbieri RB, Bufalo NE, Secolin R, Assumpção LVM, Maciel RMB, Cerutti JM, Ward LS. Polymorphisms of cell cycle control genes influence the development of sporadic medullary thyroid carcinoma. Eur J Endocrinol 2014; 171:761-7. [PMID: 25565272 DOI: 10.1530/eje-14-0461] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND The role of key cell cycle regulation genes such as, CDKN1B, CDKN2A, CDKN2B, and CDKN2C in sporadic medullary thyroid carcinoma (s-MTC) is still largely unknown. METHODS In order to evaluate the influence of inherited polymorphisms of these genes on the pathogenesis of s-MTC, we used TaqMan SNP genotyping to examine 45 s-MTC patients carefully matched with 98 controls. RESULTS A multivariate logistic regression analysis demonstrated that CDKN1B and CDKN2A genes were related to s-MTC susceptibility. The rs2066827*GT+GG CDKN1B genotype was more frequent in s-MTC patients (62.22%) than in controls (40.21%), increasing the susceptibility to s-MTC (OR=2.47; 95% CI=1.048-5.833; P=0.038). By contrast, the rs11515*CG+GG of CDKN2A gene was more frequent in the controls (32.65%) than in patients (15.56%), reducing the risk for s-MTC (OR=0.174; 95% CI=0.048-0.627; P=0.0075). A stepwise regression analysis indicated that two genotypes together could explain 11% of the total s-MTC risk. In addition, a relationship was found between disease progression and the presence of alterations in the CDKN1A (rs1801270), CDKN2C (rs12885), and CDKN2B (rs1063192) genes. WT rs1801270 CDKN1A patients presented extrathyroidal tumor extension more frequently (92%) than polymorphic CDKN1A rs1801270 patients (50%; P=0.0376). Patients with the WT CDKN2C gene (rs12885) presented larger tumors (2.9±1.8 cm) than polymorphic patients (1.5±0.7 cm; P=0.0324). On the other hand, patients with the polymorphic CDKN2B gene (rs1063192) presented distant metastases (36.3%; P=0.0261). CONCLUSION In summary, we demonstrated that CDKN1B and CDKN2A genes are associated with susceptibility, whereas the inherited genetic profile of CDKN1A, CDKN2B, and CDKN2C is associated with aggressive features of tumors. This study suggests that profiling cell cycle genes may help define the risk and characterize s-MTC aggressiveness.
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Affiliation(s)
- R B Barbieri
- University of Campinas (FCM - Unicamp)126, Tessalia Vieira de Camargo, Street. Cidade Universitaria Zeferino Vaz, Campinas - São Paulo, 13083-887 BrazilFederal University of Sao Paulo (Unifesp)669, Pedro Toledo Street, São Paulo-SP 04039-032, Brazil
| | - N E Bufalo
- University of Campinas (FCM - Unicamp)126, Tessalia Vieira de Camargo, Street. Cidade Universitaria Zeferino Vaz, Campinas - São Paulo, 13083-887 BrazilFederal University of Sao Paulo (Unifesp)669, Pedro Toledo Street, São Paulo-SP 04039-032, Brazil
| | - R Secolin
- University of Campinas (FCM - Unicamp)126, Tessalia Vieira de Camargo, Street. Cidade Universitaria Zeferino Vaz, Campinas - São Paulo, 13083-887 BrazilFederal University of Sao Paulo (Unifesp)669, Pedro Toledo Street, São Paulo-SP 04039-032, Brazil
| | - L V M Assumpção
- University of Campinas (FCM - Unicamp)126, Tessalia Vieira de Camargo, Street. Cidade Universitaria Zeferino Vaz, Campinas - São Paulo, 13083-887 BrazilFederal University of Sao Paulo (Unifesp)669, Pedro Toledo Street, São Paulo-SP 04039-032, Brazil
| | - R M B Maciel
- University of Campinas (FCM - Unicamp)126, Tessalia Vieira de Camargo, Street. Cidade Universitaria Zeferino Vaz, Campinas - São Paulo, 13083-887 BrazilFederal University of Sao Paulo (Unifesp)669, Pedro Toledo Street, São Paulo-SP 04039-032, Brazil
| | - J M Cerutti
- University of Campinas (FCM - Unicamp)126, Tessalia Vieira de Camargo, Street. Cidade Universitaria Zeferino Vaz, Campinas - São Paulo, 13083-887 BrazilFederal University of Sao Paulo (Unifesp)669, Pedro Toledo Street, São Paulo-SP 04039-032, Brazil
| | - L S Ward
- University of Campinas (FCM - Unicamp)126, Tessalia Vieira de Camargo, Street. Cidade Universitaria Zeferino Vaz, Campinas - São Paulo, 13083-887 BrazilFederal University of Sao Paulo (Unifesp)669, Pedro Toledo Street, São Paulo-SP 04039-032, Brazil
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Damião MJ, Giannocco G, Grespan R, Silva EL, Duarte JS, Maciel RMB, Yamada AN, Bersani-Amado CA, Cuman RKN. Ginger Essential Oil Ameliorates Cisplatin-Induced Nephrotoxicity in Mice. TROP J PHARM RES 2014. [DOI: 10.4314/tjpr.v12i6.14] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Valente FOF, Dias da Silva MR, Camacho CP, Kunii IS, Bastos AU, da Fonseca CCN, Simião HPC, Tamanaha R, Maciel RMB, Cerutti JM. Comprehensive analysis of RET gene should be performed in patients with multiple endocrine neoplasia type 2 (MEN 2) syndrome and no apparent genotype-phenotype correlation: an appraisal of p.Y791F and p.C634Y RET mutations in five unrelated Brazilian families. J Endocrinol Invest 2013; 36:975-81. [PMID: 23723040 DOI: 10.3275/8997] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND We previously identified a four-generation family with medullary thyroid cancer (MTC) and a germline p.Y791F RET mutation whose cancer lacked a strong genotype-phenotype correlation. The entire gene coding region of the RET gene should be sequenced when genotype-phenotype discrepancies are observed in patients with multiple endocrine neoplasia type 2 (MEN 2), even if a RET hotspot mutation has been identified. METHODS A new genetic test was performed in the index case of this family with the p.Y791F RET germline mutation. The entire coding region of the RET gene was investigated by direct sequencing of PCR products. Once a mutation was identified, the target exon was sequenced in all at-risk relatives. RESULTS An additional p.C634Y germline mutation in the RET gene was identified in the reported family. The double mutation occurred in cis and segregated with the phenotype. Through the Brazilian Genetic Screening Program developed at our institution, we additionally report the combination of these two mutations (p.C634Y/p.Y791F) in the RET gene in four other unrelated families. The overall penetrance of MTC and pheochromocytoma in patients with the p.C634Y/p.Y791F mutations was 79% and 13%, respectively. CONCLUSION Our data emphasises that a comprehensive analysis of the RET gene may reveal multiple germline mutations in MEN 2 patients who exhibit an atypical clinical course of the disease.
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Affiliation(s)
- F O F Valente
- Laboratory of Molecular and Translational Endocrinology, Division of Endocrinology, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
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Barbieri RB, Bufalo NE, Cunha LL, Assumpção LVM, Maciel RMB, Cerutti JM, Ward LS. Genes of detoxification are important modulators of hereditary medullary thyroid carcinoma risk. Clin Endocrinol (Oxf) 2013; 79:288-93. [PMID: 23278115 DOI: 10.1111/cen.12136] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Revised: 10/29/2012] [Accepted: 12/17/2012] [Indexed: 01/12/2023]
Abstract
CONTEXT Different inherited profiles of genes involved in cellular mechanisms of activation and detoxification of carcinogenic products can provide specific protection or determine the risk for cancer. Low-penetrance polymorphic genes related to the biotransformation of environmental toxins have been associated with susceptibility to and the phenotype of, human tumours. OBJECTIVE To investigate the role of germline inheritance of polymorphisms in CYP1A2*F, CYP1A1 m1, GSTP1, NAT2 and TP53 genes in hereditary medullary thyroid carcinoma (HMTC) patients. DESIGN This study was developed in University of Campinas (Unicamp). PATIENTS We studied 132 patients with HMTC, 88 first-degree relatives of HMTC patients and 575 control individuals. MEASUREMENTS All patients with MTC and their relatives were sequenced for the RET gene and five genes were genotyped using TaqMan(®) system. RESULTS We observed that the inheritance of CYP1A2*F (OR = 2·10; 95% CI = 1·11-3·97; P = 0·022), GSTP1 (OR = 4·41; 95% CI = 2·47-7·88; P < 0·001) and NAT2 (OR = 2·54; 95% CI = 1·16-5·58; P = 0·020) variants increased the risk for HMTC. In addition, multiple regression analysis showed that the inheritance of GSTP1 polymorphisms was associated with the diagnosis in older patients (B = 8·0229; 95% IC = ± 5·5735; P = 0·0054). Concerning the group of HTMC relatives, CYP1A2*F (OR = 2:40; 95% CI = 1·19-4·86; P = 0·015), CYP1A1 m1 (OR = 2·79; 95% CI = 1:04-7·51; P = 0·042), GSTP1 (OR = 2·86; 95% IC = 1·53-5·32; P < 0·001) and NAT2 (OR = 2·25; 95% IC = 1·20-4·22; P = 0·012) were associated with HMTC risk. CONCLUSIONS We have demonstrated that the inheritance of specific genes determining the individual response to environmental toxins may contribute to the risk and phenotypic variability that exists in patients with HMTC. Moreover, we identified a group at risk in relatives of HMTC patients.
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Affiliation(s)
- R B Barbieri
- Faculty of Medical Sciences, Laboratory of Cancer Molecular Genetics, University of Campinas (FCM-Unicamp), Campinas, Brazil
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Barbieri RB, Bufalo NE, Secolin R, Silva ACN, Assumpção LVM, Maciel RMB, Cerutti JM, Ward LS. Evidence that polymorphisms in detoxification genes modulate the susceptibility for sporadic medullary thyroid carcinoma. Eur J Endocrinol 2012; 166:241-5. [PMID: 22048975 DOI: 10.1530/eje-11-0843] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
AIM Polymorphic low-penetrance genes have been consistently associated with the susceptibility to a series of human tumors, including differentiated thyroid cancer. METHODS To determine their role in medullary thyroid cancer (MTC), we used TaqMan SNP method to genotype 47 sporadic MTC (s-MTC) and a control group of 578 healthy individuals for CYP1A2*F, CYP1A1m1, GSTP1, NAT2 and 72TP53. A logistic regression analysis showed that NAT2C/C (OR=3.87; 95% CI=2.11-7.10; P=2.2×10(-5)) and TP53C/C genotypes (OR=3.87; 95% CI=1.78-6.10; P=2.8×10(-4)) inheritance increased the risk of s-MTC. A stepwise regression analysis indicated that TP53C/C genotype contributes with 8.07% of the s-MTC risk. RESULTS We were unable to identify any relationship between NAT2 and TP53 polymorphisms suggesting they are independent factors of risk to s-MTC. In addition, there was no association between the investigated genes and clinical or pathological features of aggressiveness of the tumors or the outcome of MTC patients. CONCLUSION In conclusion, we demonstrated that detoxification genes and apoptotic and cell cycle control genes are involved in the susceptibility of s-MTC and may modulate the susceptibility to the disease.
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Affiliation(s)
- R B Barbieri
- Laboratory of Molecular Genetics Cancer, Faculty of Medical Sciences, University of Campinas, PO Box 6111, Campinas, São Paulo, Brazil
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Oliveira CSV, Hauache OM, Vieira JGH, Maciel RMB, Sjöroos M, Canani LH, Velho G, Gross JL, Reis AF. The Ala45Thr polymorphism of NEUROD1 is associated with type 1 diabetes in Brazilian women. Diabetes & Metabolism 2005; 31:599-602. [PMID: 16357810 DOI: 10.1016/s1262-3636(07)70237-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
BACKGROUND NEUROD1 encodes a transcription factor expressed in the endocrine pancreas, and involved in beta-cell development, function and mechanisms of apoptosis. In this study, we investigated the association of a frequent polymorphism in exon 2 of NEUROD1 (G > A; Ala45Thr) with Type 1 diabetes in Brazilian subjects. METHODS A population/association study comprising 246 unrelated Type 1 diabetic and 275 nondiabetic white Brazilian subjects. The Ala45Thr variant was genotyped by a PCR-RFLP method. RESULTS The frequency of the Thr allele was significantly higher in patients with Type 1 diabetes than in controls (42.3% vs 35.3%, P=0.02). Stratification by gender showed that homozygosity for the Thr allele was associated with Type 1 diabetes in women with odds ratio of 3.66 (95% C.I. 1.43-10.11, P=0.009) as compared to homozygosity for the Ala allele. This effect was not observed in men. CONCLUSIONS We found a gender-specific association of the Ala45Thr variant of NEUROD1 with Type 1 diabetes in Brazilian women. Our results suggest that gender as well as ethnicity might modulate the association of NEUROD1 with Type 1 diabetes.
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Affiliation(s)
- C S V Oliveira
- Laboratory of Molecular Endocrinology, Federal University of São Paulo, 01333-011 São Paulo-SP, Brazil
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Reis EM, Ojopi EPB, Alberto FL, Rahal P, Tsukumo F, Mancini UM, Guimarães GS, Thompson GMA, Camacho C, Miracca E, Carvalho AL, Machado AA, Paquola ACM, Cerutti JM, da Silva AM, Pereira GG, Valentini SR, Nagai MA, Kowalski LP, Verjovski-Almeida S, Tajara EH, Dias-Neto E, Bengtson MH, Canevari RA, Carazzolle MF, Colin C, Costa FF, Costa MCR, Estécio MRH, Esteves LICV, Federico MHH, Guimarães PEM, Hackel C, Kimura ET, Leoni SG, Maciel RMB, Maistro S, Mangone FRR, Massirer KB, Matsuo SE, Nobrega FG, Nóbrega MP, Nunes DN, Nunes F, Pandolfi JR, Pardini MIMC, Pasini FS, Peres T, Rainho CA, dos Reis PP, Rodrigus-Lisoni FCC, Rogatto SR, dos Santos A, dos Santos PCC, Sogayar MC, Zanelli CF. Large-scale Transcriptome Analyses Reveal New Genetic Marker Candidates of Head, Neck, and Thyroid Cancer. Cancer Res 2005; 65:1693-9. [PMID: 15753364 DOI: 10.1158/0008-5472.can-04-3506] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A detailed genome mapping analysis of 213,636 expressed sequence tags (EST) derived from nontumor and tumor tissues of the oral cavity, larynx, pharynx, and thyroid was done. Transcripts matching known human genes were identified; potential new splice variants were flagged and subjected to manual curation, pointing to 788 putatively new alternative splicing isoforms, the majority (75%) being insertion events. A subset of 34 new splicing isoforms (5% of 788 events) was selected and 23 (68%) were confirmed by reverse transcription-PCR and DNA sequencing. Putative new genes were revealed, including six transcripts mapped to well-studied chromosomes such as 22, as well as transcripts that mapped to 253 intergenic regions. In addition, 2,251 noncoding intronic RNAs, eventually involved in transcriptional regulation, were found. A set of 250 candidate markers for loss of heterozygosis or gene amplification was selected by identifying transcripts that mapped to genomic regions previously known to be frequently amplified or deleted in head, neck, and thyroid tumors. Three of these markers were evaluated by quantitative reverse transcription-PCR in an independent set of individual samples. Along with detailed clinical data about tumor origin, the information reported here is now publicly available on a dedicated Web site as a resource for further biological investigation. This first in silico reconstruction of the head, neck, and thyroid transcriptomes points to a wealth of new candidate markers that can be used for future studies on the molecular basis of these tumors. Similar analysis is warranted for a number of other tumors for which large EST data sets are available.
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Affiliation(s)
- Eduardo M Reis
- Departamento de Bioquímica, Faculdade de Medicina, Universidade de São Paulo, Brazil
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Abstract
To investigate the molecular events involved in the pathogenesis and/or progression of thyroid tumors, we compared the gene expression profiles of three thyroid carcinoma cell lines, which represent major tumor subtypes of thyroid cancer and normal thyroid tissue. Using cDNA array methodology, we investigated the expression of 1807 open reading frame expressed sequence tags (ORESTES), selected from head and neck tumor libraries generated through the Brazilian Human Cancer Project-LICR/FAPESP. We found that 505 transcripts were differentially expressed in the thyroid carcinoma cell lines. Using a more stringent criterion, transcripts underexpressed or overexpressed more than fivefold in 1 of 3 or 3 of 3 carcinoma cell lines, a list of 55 ESTs were detected. Five candidate genes were further validated by quantitative polymerase chain reaction (qPCR) in an independent set of 52 thyroid tumors and 22 matched normal thyroid tissues. DCN was found underexpressed in a high percentage of the follicular thyroid adenomas, follicular thyroid carcinomas, and follicular variant of papillary thyroid carcinomas. DIO1 and DIO2 were underexpressed in nearly all papillary thyroid carcinomas. These genes not only could help to better define a tumor signature for thyroid tumors, but may, in part, also become useful as potential targets for thyroid tumor treatment.
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Affiliation(s)
- L A T Arnaldi
- Laboratory of Molecular Endocrinology, Division of Endocrinology, Department of Medicine, Federal University of São Paulo, Rua Pedro de Toledo 781-12 andar 04039-032, São Paulo, Brazil
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Abstract
Smad proteins have been shown tomediate the signal transduction pathway downstream of the transforming growth factor beta (TGFbeta). TGFbeta induces the phosphorylation of Smad2 and Smad3 which associate with Smad4 and translocate to the nucleus where they regulate gene transcription; besides these stimulatory Smads, the inhibitory Smads, Smad6 and Smad7, oppose signaling by blocking receptors and interrupting the phosphorylation of Smads2/3. The loss of TGFbeta-sensitivity, caused by inactivation of components of TGFbeta signaling, as Smad4, underlies a wide variety of human disorders, including cancer. In addition, the overexpression of the inhibitory Smad7, which prevents the phosphorylation of Smad2/3 and consequently inhibits TGFbeta signaling pathways, was observed in some diseases. In the present study we investigated the expression of Smad4 and Smad7 in thyroid cell lines (NPA papillary carcinoma, WRO follicular carcinoma and ARO anaplastic carcinoma) by RT-PCR and immunocytochemistry. Our results show that Smad4 was expressed in all thyroid cell lines and controls analyzed, differently from other classes of tumors where Smad4 expression was deleted. On the other hand, Smad7 was overexpressed in ARO anaplastic cell line, the most malignant follicular thyroid carcinoma. Our data suggest that the abrogation of the TGFbeta response by Smad7 overexpression may be a mechanism for the tumor aggressiveness observed in undifferentiated thyroid tumors.
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Affiliation(s)
- J M Cerutti
- Laboratory of Molecular Endocrinology, Division of Endocrinology, Department of Medicine, Universidade Federal de São Paulo, São Paulo, SP, Brazil
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Dalla Torre CA, Maciel RMB, Pinheiro NA, Andrade JAD, De Toledo SRC, Villa LL, Cerutti JM. TRAP-silver staining, a highly sensitive assay for measuring telomerase activity in tumor tissue and cell lines. Braz J Med Biol Res 2002; 35:65-8. [PMID: 11743616 DOI: 10.1590/s0100-879x2002000100009] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Measurement of telomerase activity in clinically obtained tumor samples may provide important information for use as both a diagnostic marker and a prognostic indicator for patient outcome. In order to evaluate telomerase activity in tumor tissue without radiolabeling the product, we developed a simple telomeric repeat amplification protocol-silver-staining assay that is less time-consuming, is safe and requires minimal equipment. In addition, we determined the sensitivity of the silver-staining method by using extracts of telomerase-positive thyroid carcinoma cell lines which were serially diluted from 5,000 to 10 cells. Telomerase activity was also assayed in 19 thyroid tumors, 2 normal controls and 27 bone marrow aspirates. The results indicate that the technique permits the detection of telomerase activity from 5000 to as few as 10 cells. We propose that it could be immediately applicable in many laboratories due to the minimal amount of equipment required.
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Affiliation(s)
- C A Dalla Torre
- Divisão de Genética, Departamento de Morfologia, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brasil
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