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Vieira A, Amálio S, Castelo B, Gaspar H, Lopes A. Nutrition awareness questionnaire among physicians responsible for oncologic patients. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.1299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Glynne-Jones R, Hall M, Lopes A, Pearce S, Goh V, Bosompem S, Bridgewater J, Chau I, Wasan H, Moran B, Melcher L, West N, Quirke P, Wong WL, Beare S, Hava N, Duggan M, Harrison M. BACCHUS: A randomised non-comparative phase II study of neoadjuvant chemotherapy (NACT) in patients with locally advanced rectal cancer (LARC). Heliyon 2018; 4:e00804. [PMID: 30258994 PMCID: PMC6151852 DOI: 10.1016/j.heliyon.2018.e00804] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 08/06/2018] [Accepted: 09/13/2018] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Chemoradiation (CRT) or short-course radiotherapy (SCRT) are standard treatments for locally advanced rectal cancer (LARC). We evaluated the efficacy/safety of two neoadjuvant chemotherapy (NACT) regimens as an alternative prior to total mesorectal excision (TME). METHODS/DESIGN This multi-centre, phase II trial in patients with magnetic resonance imaging (MRI) defined high-risk LARC (>cT3b, cN2+ or extramural venous invasion) randomised patients (1:1) to FOLFOX + Bevacizumab (Arm 1) or FOLFOXIRI + bevacizumab (Arm 2) every 14 days for 6 cycles prior to surgery. Patients were withdrawn if positron emission tomography (PET) standardised uptake value (SUV) after 3 cycles failed to decrease by >30% or increased compared to baseline. Primary endpoint was pathological complete response rate (pCR). Secondary endpoints included adverse events (AE) and toxicity. Neoadjuvant rectal (NAR) scores based on "T" and "N" downstaging were calculated. FINDINGS Twenty patients aged 18-75 years were randomised. The trial stopped early because of poor accrual. Seventeen patients completed all 6 cycles of NACT. One stopped due to myocardial infarction, 1 poor response on PET (both received CRT) and 1 committed suicide. 11 patients had G3 AE, 1 G4 AE (neutropenia), and 1 G5 (suicide). pCR (the primary endpoint) was 0/10 for Arm 1 and 2/10 for Arm 2 i.e. 2/20 (10%) overall. Median NAR score was 14·9 with 5 (28%), 7 (39%), and 6 (33%) having low, intermediate, or high scores. Surgical morbidity was acceptable (1/18 wound infection, no anastomotic leak/pelvic sepsis/fistulae). The 24-month progression-free survival rate was 75% (95% CI: 60%-85%). INTERPRETATION The primary endpoint (pCR rate) was not met. However, FOLFOXIRI and bevacizumab achieved promising pCR rates, low NAR scores and was well-tolerated. This regimen is suitable for testing as the novel arm against current standards of SCRT and/or CRT in a future trial.
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Lopes A, Luís R, Klinkby E, Nonbøl E, Jessen M, Moutinho R, Salewski M, Rasmussen J, Gonçalves B, Lauritzen B, Korsholm S, Larsen A, Vidal C. Neutronics analysis of the ITER Collective Thomson Scattering system. FUSION ENGINEERING AND DESIGN 2018. [DOI: 10.1016/j.fusengdes.2018.06.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Salgado B, Pereira R, Pereira N, Lopes A, Borges J, Filho S, Lalwani P. Seroprevalence of Hantavirus infection in residents individuals of municipalities of Amazonas state. Int J Infect Dis 2018. [DOI: 10.1016/j.ijid.2018.04.3842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Rodrigues AS, Nunes MJ, Lopes A, Silva JN, Ciríaco L, Pacheco MJ. Electrodegradation of naphthalenic amines: Influence of the relative position of the substituent groups, anode material and electrolyte on the degradation products and kinetics. CHEMOSPHERE 2018; 205:433-442. [PMID: 29705634 DOI: 10.1016/j.chemosphere.2018.04.104] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 03/24/2018] [Accepted: 04/13/2018] [Indexed: 06/08/2023]
Abstract
The electrodegradation of the 4-aminonaphthalene-1-sulfonic acid (4AN1S), 5-aminonaphthalene-2-sulfonic acid (5AN2S) and 8-aminonaphthalene-2-sulfonic acid (8AN2S) was studied, using two electrode materials as anode, BDD and Ti/Pt/PbO2, and two different electrolytes, sodium sulfate and sodium chloride. The highest COD removal rates were obtained at BDD: for 5AN2S and 8AN2S results were similar in both electrolytes; for 4AN1S, results were better in sodium chloride. The lowest COD removal rates were obtained at the system Ti/Pt/PbO2-sodium sulfate, for all the studied amines. The dissolved organic carbon (DOC) removal was much higher at BDD for all the amines, in sulfate for 5AN2S and 8AN2S and in chloride for 4AN1S. Nitrogen removal was always almost irrelevant in sulfate medium but higher than 60%, after 6-h assays, in chloride. The highest combustion efficiencies were attained at the system BDD-sodium sulfate and were: 4AN1S-75%; 5AN2S-84%; 8AN2S-74%. HPLC results show that total degradation of the studied aminonaphthalene sulfonates is attained at both anode materials, utilizing any of the electrolytes, with a first order kinetics. However, kinetic constants obtained with the variation of the amines concentration in time are 10-40 times higher in chloride, being slightly higher at Ti/Pt/PbO2 than at BDD. Regarding the presence of carboxylic acids during the degradation assays, it was observed that the electrolysis of the amines 5AN2S and 8AN2S always lead to higher amounts of oxalic acid and lower quantities of acetic acid than the electrolysis of the amine 4AN1S.
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Silva MMRL, Junior SA, de Aguiar Pastore J, Santos ÉMM, de Oliveira Ferreira F, Spencer RMSB, Calsavara VF, Nakagawa WT, Lopes A. Late assessment of quality of life in patients with rectal carcinoma: comparison between sphincter preservation and definitive colostomy. Int J Colorectal Dis 2018; 33:1039-1045. [PMID: 29675592 PMCID: PMC6060835 DOI: 10.1007/s00384-018-3044-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/04/2018] [Indexed: 02/07/2023]
Abstract
PURPOSE Patients with cancer of the lower and middle rectum who are candidates for curative surgery often have negative opinions on definitive colostomy. The purpose of this study is to compare the quality of life (QoL) of patients who undergo standard treatment for rectal cancer with sphincter preservation or definitive colostomy. METHODS A total of 125 patients with adenocarcinoma of the lower or middle rectum who underwent radical surgery with curative intent with a follow-up ≥ 1 year were recruited: 83 patients (group 1) were subjected to low anterior resection and low colorectal or coloanal anastomosis-thus preserving their sphincter-and 42 (group 2) were treated with abdominoperineal resection, followed by terminal definitive colostomy. QoL was assessed with the EORTC QLQ-C30 and QLQ-CR29 questionnaires. RESULTS Health and global quality of life were similar between groups; however, patients who underwent definitive colostomy had higher scores on the emotional (p value = 0.016) and cognitive function scales (p value = 0.017). Patients with sphincter preservation presented with more symptoms that were related to stool frequency (p value < 0.001), intestinal constipation (p value = 0.005), fecal incontinence (p value = 0.001), buttock pain (p value = 0.023), and nausea and vomiting (p value = 0.036), whereas patients with permanent colostomy had higher scores for dysuria (p value = 0.033). CONCLUSION Although global QoL scores did not differ between groups, patients who underwent definitive colostomy had significantly better functional and symptom scale scores, reflecting greater function with fewer symptoms.
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Batista TP, Sarmento BJQ, Loureiro JF, Petruzziello A, Lopes A, Santos CC, Quadros CDA, Akaishi EH, Cordeiro EZ, Coimbra FJF, Laporte GA, Castro LS, Batista RMSS, Aguiar S, Costa WL, Ferreira FO. A proposal of Brazilian Society of Surgical Oncology (BSSO/SBCO) for standardizing cytoreductive surgery (CRS) plus hyperthermic intraperitoneal chemotherapy (HIPEC) procedures in Brazil: pseudomixoma peritonei, appendiceal tumors and malignant peritoneal mesothelioma. ACTA ACUST UNITED AC 2018; 44:530-544. [PMID: 29019584 DOI: 10.1590/0100-69912017005016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 06/08/2017] [Indexed: 12/13/2022]
Abstract
Cytoreductive surgery plus hypertermic intraperitoneal chemotherapy has emerged as a major comprehensive treatment of peritoneal malignancies and is currently the standard of care for appendiceal epithelial neoplasms and pseudomyxoma peritonei syndrome as well as malignant peritoneal mesothelioma. Unfortunately, there are some worldwide variations of the cytoreductive surgery and hypertermic intraperitoneal chemotherapy techniques since no single technique has so far demonstrated its superiority over the others. Therefore, standardization of practices might enhance better comparisons between outcomes. In these settings, the Brazilian Society of Surgical Oncology considered it important to present a proposal for standardizing cytoreductive surgery plus hypertermic intraperitoneal chemotherapy procedures in Brazil, with a special focus on producing homogeneous data for the developing Brazilian register for peritoneal surface malignancies.
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Kuasne H, Barros-Filho M, Muñoz J, Marchi F, Scapulatempo-Neto C, Faria E, Guimarães G, Lopes A, Mello J, Domingues M, Carréno S, Rogatto S. Abstract 2355: Penile cancer in vitro models useful for the identification of targeted therapies. Cancer Res 2018. [DOI: 10.1158/1538-7445.am2018-2355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Penile carcinoma (PeCa) is a frequent disease in poor and developing countries showing high morbidity. Despite the recent progress in the molecular research of PeCa, the lack of well-characterized in vitro models precludes new advances in the knowledge of cellular processes and in preclinical tests for anticancer drugs' efficacy.
Material and Methods: Twenty PeCa were surgically removed, dissected and cultured in vitro (2D and 3D environment) using 3 KSFM: 1 DMEM/F12. We established five penile cancer cell cultures in vitro (passage 20), which were characterized by genomic (CytoScan HD - Affymetrix), translatomic (Clariom D Array - Affymetrix), epigenomic (Infinium Methylation EPIC BeadChip - Illumina) and proteomic profiles (Reverse phase protein array - RPPA). Chemosensitivity assay using cisplatin and EGFR inhibitors (Erbitux and Tarceva) was performed by MTT test.
Results: Two cell cultures presented typical epithelial cell morphology and epithelial markers expression such as cytokeratin and EpCAM and three were cancer-associated fibroblasts (CAFs). These cell cultures presented cancer behavior features including anchorage-independent growth, invasive potential, and capability to form tumor in nude mice. The genomic analysis revealed high similarity between the primary tumor and its derived cell culture. Transcriptomic and proteomic analysis revealed that the most relevant differentially expressed genes and proteins are components of key oncogenic pathways (MMPs, EGFR, STAT3, and PI3K/AKT/mTOR), supporting our previous data using PeCa fresh tissues. We also identified a set of genes potentially regulated by epigenetic modifications. A chemosensitivity investigation suggested that these cells are sensitive to cisplatin, a chemotherapy agent commonly used in advanced PeCa. One cell culture with EGFR overexpression was sensitive to anti-EGFR drugs (Tarceva and Erbitux).
Conclusion: In general, PeCa cell cultures recapitulated cancer behavior in vitro and showed the same dysregulated pathways than their corresponding primary tumors. These cells proved to be reliable in vitro models to dissect mechanisms promoting penile carcinogenesis and to test new targeted therapies. Our results support recent studies in which patients with advanced PeCa expressing EGFR can benefit from the treatment with EGFR-targeted therapies.
Citation Format: Hellen Kuasne, Mateus Barros-Filho, Juan Muñoz, Fabio Marchi, Cristovam Scapulatempo-Neto, Eliney Faria, Gustavo Guimarães, Ademar Lopes, Julia Mello, Maria Domingues, Sebastien Carréno, Silvia Rogatto. Penile cancer in vitro models useful for the identification of targeted therapies [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2018; 2018 Apr 14-18; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2018;78(13 Suppl):Abstract nr 2355.
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Lopes A, Costa R, Santos M, Calheiros Y, Anton C, Sartorelli V, Lima J, Kanashiro Y, Navarro Filho A, Pinto G, di Paula R. Cardiophrenic lymph nodes resection as part of cytoreduction for primary or recurrent ovarian carcinoma: A cohort study. Gynecol Oncol 2018. [DOI: 10.1016/j.ygyno.2018.04.219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lopes A, Casse A, Veziant J, Roche G, Barnich N, Miot-Noirault E, Naimi S, Billard E, Dumas B, Bonnet M. 32 Impact of colibactin-producing escherichia coli on immune microenvironment in preclinical colorectal cancer models. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Maló P, Lopes A, de Araújo Nobre M, Ferro A. Immediate function dental implants inserted with less than 30N·cm of torque in full-arch maxillary rehabilitations using the All-on-4 concept: retrospective study. Int J Oral Maxillofac Surg 2018; 47:1079-1085. [PMID: 29735198 DOI: 10.1016/j.ijom.2018.04.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 02/26/2018] [Accepted: 04/09/2018] [Indexed: 11/26/2022]
Abstract
The aim of this retrospective clinical study was to evaluate the short-term implant success rate and marginal bone loss in full-arch fixed prosthetic maxillary rehabilitations supported by implants in immediate function with the All-on-4 treatment concept placed with insertion torque of <30N·cm or ≥30N·cm. This study included 83 patients (69 female, 14 male) with 332 implants placed (120 inserted with <30N·cm and 212 inserted with ≥30N·cm) who were treated between January 2010 and March 2013. Outcome measures were implant success and marginal bone loss at 1year of follow-up. Ten patients (12.0%; 13 implants inserted with <30N·cm and 27 implants with ≥30N·cm) were lost to follow-up. The cumulative implant success rate was 97.5% at the patient level, and 98.3% for implants inserted with <30N·cm and 97.5% for implants inserted with ≥30N·cm. The mean±standard deviation marginal bone loss at 1year was 1.14±0.38mm for implants inserted with <30N·cm and 1.39±0.49mm for implants inserted with ≥30N·cm (significant difference; P<0.001, Wilcoxon signed rank test). These results indicate that implants with insertion torques of <30N·cm may render comparable success rates and marginal bone loss at 1year compared to implants inserted with insertion torques of ≥30N·cm.
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Bergamo E, Bordin D, Gomes R, Ramalho I, Lopes A, Oliveira P, Witek L, Coelho P, Cury A. Wear behavior of glass-ceramic systems after different finishing procedures. Dent Mater 2018. [DOI: 10.1016/j.dental.2018.08.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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88
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Stevanato Filho PR, Aguiar Júnior S, Begnami MD, Kuasne H, Spencer RM, Nakagawa WT, Bezerra TS, Kupper BC, Takahashi RM, Barros Filho M, Rogatto SR, Lopes A. Oestrogen receptor beta isoform expression in sporadic colorectal cancer, familial adenomatous polyposis and progressive stages of colorectal cancer. BMC Cancer 2017; 17:754. [PMID: 29132333 PMCID: PMC5683223 DOI: 10.1186/s12885-017-3688-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Accepted: 10/15/2017] [Indexed: 02/08/2023] Open
Abstract
Background Among the sex hormones, oestrogen may play a role in colorectal cancer, particularly in conjunction with oestrogen receptor-β (ERβ). The expression of ERβ isoform variants and their correlations with familial adenomatous polyposis (FAP) syndrome and sporadic colorectal carcinomas are poorly described. Methods This study aimed to investigate the expression levels of the ERβ1, ERβ2, ERβ4 and ERβ5 isoform variants using quantitative RT-PCR (921 analyses) in FAP, normal mucosa, adenomatous polyps and sporadic colorectal carcinomas. Results Decreased expression of ERβ isoforms was identified in sporadic polyps and in sporadic colorectal cancer as well as in polyps from FAP syndrome patients compared with normal tissues (p < 0.001). In FAP patients, ERβ1 and ERβ5 isoforms showed significant down-expression in polyps (p < 0.001) compared with matched normal tissues. However, no differences were observed when sporadic colorectal carcinomas were compared to normal mucosa tissues. These findings suggest an association of the ERβ isoform variants in individuals affected by germline mutations of the APC gene. Progressively decreased expression of ERβ was found in polyps at early stages of low-grade dysplasia, followed by T1-T2 and T3-T4 tumours (p < 0.05). In sporadic colorectal cancer, the loss of expression was an independent predictor of recurrence, and ERβ1 and ERβ5 expression levels were associated with better disease-free survival (p = 0.002). Conclusion These findings may provide a better understanding of oestrogens and their potential preventive and therapeutic effects on sporadic colorectal cancer and cancers associated with FAP syndrome. Electronic supplementary material The online version of this article (10.1186/s12885-017-3688-4) contains supplementary material, which is available to authorized users.
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Sclafani F, Gollins S, Cunningham D, Hulkki Wilson S, Kouvelakis K, Lopes A, West N, Quirke P, Begum R, Valeri N, Beare S, Hughes L, Gonzalez De Castro D, Chau I. FCγRIIa and FCγRIIIa single nucleotide polymorphisms (SNPs) and cetuximab benefit in the EXCITE trial. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx659.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Silva M, Spencer R, Aguiar S, Stevanato P, Takahashi R, Bezerra T, Kupper B, Mello C, da Cunha I, Pellizzon C, Lopes A. Neoadjuvant Chemotherapy and Hypofractionated Radiation Therapy in High-Grade Extremity Soft Tissue Sarcomas. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.2425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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91
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Gomes J, Lopes A, Bednarczyk K, Gmurek M, Stelmachowski M, Zaleska-Medynska A, Quinta-Ferreira M, Costa R, Quinta-Ferreira R, Martins R. Environmental preservation of emerging parabens contamination: effect of Ag and Pt loading over the catalytic efficiency of TiO 2 during photocatalytic ozonation. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.egypro.2017.10.282] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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92
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Amálio S, Pina S, Figueiras M, Cabrita P, Carrasqueira H, Lopes A. SUN-P291: Enteral Nutritional Support in our Hospital- One Day Fotography. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30340-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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93
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Kuasne H, Barros-Filho MC, Busso-Lopes A, Marchi FA, Pinheiro M, Muñoz JJM, Scapulatempo-Neto C, Faria EF, Guimarães GC, Lopes A, Trindade-Filho JCS, Domingues MAC, Drigo SA, Rogatto SR. Integrative miRNA and mRNA analysis in penile carcinomas reveals markers and pathways with potential clinical impact. Oncotarget 2017; 8:15294-15306. [PMID: 28122331 PMCID: PMC5362487 DOI: 10.18632/oncotarget.14783] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2016] [Accepted: 01/10/2017] [Indexed: 12/14/2022] Open
Abstract
Penile carcinoma (PeCa) is an important public health issue in poor and developing countries, and has only recently been explored in terms of genetic and epigenetic studies. Integrative data analysis is a powerful method for the identification of molecular drivers involved in cancer development and progression. miRNA and mRNA expression profiles followed by integrative analysis were investigated in 23 PeCa and 12 non-neoplastic penile tissues (NPT). Expression levels of eight miRNAs and 10 mRNAs were evaluated in the same set of samples used for microarray and in a validation set of cases (PeCa = 36; NPT = 27). Eighty-one miRNAs and 2,697 mRNAs were identified as differentially expressed in PeCa. Integrative data analysis revealed 255 mRNAs potentially regulated by 68 miRNAs. Using RT-qPCR, eight miRNAs and nine transcripts were confirmed as altered in PeCa. We identified that MMP1, MMP12 and PPARG and hsa-miR-31-5p, hsa-miR-224-5p, and hsa-miR-223-3p were able to distinguish tumors from NPT with high sensitivity and specificity. Higher MMP1 expression was detected as a better predictor of lymph node metastasis than the clinical-pathological data. In addition, PPARG and EGFR were highlighted as potential pathways for targeted therapy in PeCa. The analysis based on HPV positivity (7 of 23 cases) revealed five miRNA and 13 mRNA differentially expressed. Although in a limited number of cases, HPV positive PeCa presented less aggressive phenotype in comparison with negative cases. Overall, an integrative analysis using mRNA and miRNA profiles revealed markers related with tumor development and progression. Furthermore, MMP1 expression level was a predictive marker for lymph node metastasis in patients with PeCa.
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Marchi FA, Martins DC, Barros-Filho MC, Kuasne H, Busso Lopes AF, Brentani H, Trindade Filho JCS, Guimarães GC, Faria EF, Scapulatempo-Neto C, Lopes A, Rogatto SR. Multidimensional integrative analysis uncovers driver candidates and biomarkers in penile carcinoma. Sci Rep 2017; 7:6707. [PMID: 28751665 PMCID: PMC5532302 DOI: 10.1038/s41598-017-06659-1] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 06/19/2017] [Indexed: 01/24/2023] Open
Abstract
Molecular data generation and their combination in penile carcinomas (PeCa), a significant public health problem in poor and underdeveloped countries, remain virtually unexplored. An integrativemethodology combin ing genome-wide copy number alteration, DNA methylation, miRNA and mRNA expression analysis was performed in a set of 20 usual PeCa. The well-ranked 16 driver candidates harboring genomic alterations and regulated by a set of miRNAs, including hsa-miR-31, hsa-miR-34a and hsa-miR-130b, were significantly associated with over-represented pathways in cancer, such as immune-inflammatory system, apoptosis and cell cycle. Modules of co-expressed genes generated from expression matrix were associated with driver candidates and classified according to the over-representation of passengers, thus suggesting an alteration of the pathway dynamics during the carcinogenesis. This association resulted in 10 top driver candidates (AR, BIRC5, DNMT3B, ERBB4, FGFR1, PML, PPARG, RB1, TNFSF10 and STAT1) selected and confirmed as altered in an independent set of 33 PeCa samples. In addition to the potential driver genes herein described, shorter overall survival was associated with BIRC5 and DNMT3B overexpression (log-rank test, P = 0.026 and P = 0.002, respectively) highlighting its potential as novel prognostic marker for penile cancer.
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Aguiar R, Fernandes NP, Lopes A, Lopes C. Allergic bronchopulmonary aspergillosis treated successfully with omalizumab. REVISTA PORTUGUESA DE PNEUMOLOGIA 2017; 23:304-306. [PMID: 28705584 DOI: 10.1016/j.rppnen.2017.05.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Revised: 05/12/2017] [Accepted: 05/16/2017] [Indexed: 10/19/2022] Open
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Stevanato Filho PR, Aguiar Júnior S, Begnami MD, Ferreira FDO, Nakagawa WT, Spencer RMSB, Bezerra TS, Boggiss PE, Lopes A. Estrogen Receptor β as a Prognostic Marker of Tumor Progression in Colorectal Cancer with Familial Adenomatous Polyposis and Sporadic Polyps. Pathol Oncol Res 2017; 24:533-540. [PMID: 28681123 DOI: 10.1007/s12253-017-0268-5] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Accepted: 06/22/2017] [Indexed: 02/06/2023]
Abstract
The incidence of colorectal cancer (CRC) is lower in women than in men, and sex steroids can be considered contributing factors because oral contraception usage and estrogen replacement therapy are associated with decreased risk. Conversely, colorectal polyp development in familial adenomatous polyposis (FAP) begins during puberty. The objectives were to evaluate the relationship between the expression of these hormone receptors and adenoma-carcinoma progression, CRC stage and overall survival. We studied 120 A.C. Camargo Cancer Center patients diagnosed with either FAP-associated or spontaneous adenomatous polyps or CRC to determine the immunohistochemical expression levels of estrogen receptor (ER)-α, ER-β and the progesterone and androgen receptors (480 analyses). The ER-β expression levels differed between the groups: the group with FAP polyps had lower ER-β expression than that of the sporadic polyp group. With transformation of the sporadic polyps to cancer, there was a considerable decrease in ER-β expression (from 90% with strong expression to 80% with absent or weak expression) (p < 0.001). The ER-β expression was lower in T3/T4 tumors than in T1/T2 tumors (p = 0.015). The 5-year overall survival of CRC patients positively expressing ER-β exceeded that of patients without detectable expression levels (74.8% vs. 44.3%, respectively; p = 0.035). There was no significant expression of the androgen or progesterone receptor or ER-α among the groups. Differences in ER-β expression represent a potential mechanism through which estrogen might alter the susceptibility to colon cancer, thereby confirming the possibility of a protective role of estrogen against colorectal carcinogenesis.
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Gras J, Zarrouk V, Dubée V, Lopes A, Leflon V, Guigui P, Fantin B. Caractéristiques cliniques et pronostic des spondylodiscites à pyogènes chez les sujets âgés de plus de 75 ans. Med Mal Infect 2017. [DOI: 10.1016/j.medmal.2017.03.212] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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98
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Spencer RM, Aguiar Junior S, Ferreira FO, Stevanato Filho PR, Kupper BE, Silva ML, Mello CA, Bezerra TS, Lopes A. Neoadjuvant Hypofractionated Radiotherapy and Chemotherapy in High-Grade Extremity Soft Tissue Sarcomas: Phase 2 Clinical Trial Protocol. JMIR Res Protoc 2017; 6:e97. [PMID: 28546135 PMCID: PMC5465377 DOI: 10.2196/resprot.6806] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 02/22/2017] [Accepted: 03/17/2017] [Indexed: 11/18/2022] Open
Abstract
Background Neoadjuvant radiotherapy (RT) and chemotherapy are applied to large, high-grade extremity soft tissue sarcomas to treat metastatic disease earlier and sterilize margins to perform R0 surgery. However, preoperative RT increases wound complication rates (rWC), delaying adjuvant chemotherapy or preventing it from being administered altogether. Hypofractionated neoadjuvant RT can be offered in this situation, concomitant to chemotherapy, allowing patients to receive chemotherapy as a preoperative treatment in less time with an acceptable rWC. Objective The objectives of this protocol are to maintain low rates of morbidity and mortality compared to literature data, improving survival rates and avoiding poor responders from receiving unnecessary adjuvant chemotherapy. Methods This noncontrolled, single-arm, phase 2 clinical trial recruited patients aged over 18 years with high-grade soft tissue sarcomas in the girdles or extremities. Three neoadjuvant chemotherapy (ifosfamide and doxorubicin) cycles were administered with 5 days of hypofractionated RT (25 Gy in 5 fractions) in the second cycle of doxorubicin only. Viable cell counts in the surgical specimen were measured, and patients in whom this value was less than 30% continued to receive an additional 3 full chemotherapy cycles as adjuvant treatment. Results Primary endpoint will be disease-specific survival measured by the evaluation of local and distant recurrence after neoadjuvant treatment. The secondary endpoints will be wound complication and amputation rates and chemotherapy toxicity. We also will record the viable cell rates after the schema and correlate this with survival. Conclusions As seems with other solid tumors, hypofractionated RT has comparable efficacy and safety as conventional fractionation. This modality of treatment combined with chemotherapy could increase the pathological response rates and improve the outcomes of select patients. Trial Registration ClinicalTrials.gov NCT02812654; https://clinicaltrials.gov/ct2/show/NCT02812654 (Archived by WebCite at http://www.webcitation.org/6qC3puBOy)
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Baiocchi G, Begnami MD, Chen MJ, Fukazawa EM, Badiglian-Filho L, Pellizzon ACA, Soares FA, Lopes A. HER-2 Expression and Response to Radiotherapy in Patients with Advanced Cervical Cancer. THE JOURNAL OF REPRODUCTIVE MEDICINE 2017; 62:234-240. [PMID: 30027715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Glauco Baiocchi, M.D., Ph.D., Maria Dirlei Begnami, M.D., Ph.D., Michael Jenwei Chen, M.D., Elza Mieko Fukazawa, M.D., Ph.D., Levon Badiglian-Filho, M.D., Ph.D., Antonio Cassio Assis Pellizzon, M.D., Ph.D., Fernando Augusto Soares, M.D., Ph.D., and Ademar Lopes, M.D., Ph.D. OBJECTIVE: To evaluate HER-2 expression as a predictor of the response to radiotherapy and its value as a prognostic marker. STUDY DESIGN: A retrospective analysis was performed in a series of 34 individuals with advanced stage cervical cancer who underwent radiotherapy followed by radical hysterectomy. HER-2 expression was measured by immunohistochemistry in biopsies from all patients prior to radiotherapy and in 14 patients with residual tumors after radiotherapy. The presence of gene amplification was also examined. RESULTS: Eighteen (53%) patients had residual disease after radical hysterectomy. HER-2 was expressed in 26.5% of cases. Gene amplification by FISH was detected in 2.9% of cases. HER-2 expression was associated with a higher risk of residual disease after radiotherapy (p= 0.019). HER-2 expression did not correlate with the risk of recurrence or death. CONCLUSION: The prevalence of HER-2 expression is low in cervical cancer, and although HER-2 can predict the response to radiotherapy, it does not correlate with poor outcomes.
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Nunes MJ, Lopes A, Pacheco MJ, Ciríaco L. Preparation, characterization and environmental applications of Sr 1 - x (La,Bi) x TiO 3 perovskites immobilized on Ni-foam: photodegradation of the Acid Orange 7. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:11102-11110. [PMID: 27522198 DOI: 10.1007/s11356-016-7417-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 08/04/2016] [Indexed: 06/06/2023]
Abstract
The Sr1 - x La x TiO3 (0 ≤ x ≤ 0.4) and Sr1 - x Bi x TiO3 (0 ≤ x ≤ 0.3) perovskites were prepared via solid state reaction by partially replacing the Sr2+ ions in the SrTiO3 structure by La3+ or Bi3+ ions, characterized and utilized as photocatalysts immobilized in Ni-foam substrate in the degradation of the azo dye Acid Orange 7 (AO7). For both perovskite families, the XRD data reveal the existence of a predominant well-crystallized phase, belonging to a cubic perovskite in a Pm3m space group, with the presence of other minority phases. The characteristic dimension and the volume of the cell decrease with the introduction in the SrTiO3 lattice of the La3+ or Bi3+ ions. The grain size of the Sr1 - x La x TiO3 samples is around 100 nm and slightly lower for the Sr1 - x Bi x TiO3 samples. Regarding the utilization of the prepared perovskite powders deposited over the Ni-foam substrates as catalysts in the photodegradation of AO7 solutions, the results show an improvement in the performance of the films of the substituted perovskite when compared to the SrTiO3 perovskite, being the best results obtained with Sr0.9Bi0.1TiO3.
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