Detecção do rearranjo da prpoteína BCL2/JH em carcinomas epidermóides de boca e faringe

The BCL2 protein found in the internal mothocondrial membrana regulates the apoptosis preventing the programmed cell death. The translocation (14:18), detected in 70 to 85% of the follicular lymphoma, lead the super expression of BCL2 protein, by juxtaposition of BCL2 gene to the JH segment of the immunoglobulins' heavy chain gene. However, the found of the BCL2 expression in head and neck carcinoma are contradictious. OBJECTIVE: To investigate the presence of the translocation (14:18) of the BCL2 gene in head and neck carcinoma. METHOD: Sixteen DNA samplers were examinated being 13 of squamous cells carcinoma (SCC) and 3 of epidermoid (CE), y means of chain reaction of the polymerase (PCR). RESULTS: The BCL2/JH rearrangement in 2 (15%) of the CCE 13 cases and in none of the 3 cases of CE. The average of the frequency of molecules with rearrangement was 46,44x107. Was not observed association between the rearrangement presence and the exhibition to tobacco and alcohol (p=0, 6545). CONCLUSION: Different from the results found in follicular lymphoma, the presence of the translocation (14; 18) in head and neck carcinomas is not common and, when it occurs, it can be an occasional mutation not associated to exhibition to the tobacco and alcohol.

Tumor triquilemal proliferante

Contexto: O tumor triquilemal proliferativo é enfermidade pouco comum que se desenvolve a partir de lesões císticas foliculares, com alguns relatos de metástases, porém raras. Relato de caso: Descrevemos o caso de uma paciente de 93 anos, que apresentava tumoração de três centímetros há seis anos em couro cabeludo, que procurou o serviço por complicação associada (infecção). Foi realizada excisão cirúrgica completa, com realização de enxerto cutâneo para fechamento. Conclusões: Essa neoplasia de células escamosas aparentemente tem comportamento intermediário, em relação à malignidade, e necessita acompanhamento a longo prazo. Ainda há necessidade de mais estudos para identificar o porquê de alguns tumores terem comportamento indolente e outros, mais agressivo.

Estudo retrospectivo (2007-2011) da casuística de cães com mastocitomas cutâneos atendidos em um hospital-escola

Neoplasms of mast cell origin are uncommon in most animal species. Although cases of cutaneous mastocitoma (CM) are rare in humans, it is the second most diagnosed cancer in dogs, accounting for approximately 20% of cutaneous tumors in this species. The age group most frequently affected is between eight and nine years, but it may occur in animals up to three weeks old. This study aimed to describe the epidemiological, hematological and histopathological characteristics of 73 dogs with cutaneous mast cell tumors attended between 2007 and 2011 by the Oncology Service of a teaching hospital in the state of São Paulo. Data collected included race, age, sex, weight, skin region affected, blood tests results at the first consultation and histopathological grading of dogs diagnosed with this neoplasia.

Aptidão física associada às medidas antropométricas de escolares do ensino fundamental

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Quimiodectoma de corpo aórtico em cão

Chemodectomas are neoplasms originated from chemoreceptors mainly present on the aortic and carotid bodies. The etiology of this kind of tumor is related to genetic factors and chronic hypoxia. Brachycephalic breeds such as Boxer and Boston Terrier are predisposed to develop this neoplasia. This article reports the case of a 10-year-old female Boxer presented to the Veterinary Hospital of the Veterinary Medicine and Animal Science School in Botucatu with a two-day history of fatigue, exercise intolerance and dyspnea. Clinical signs, in association with radiographic and ultrasonographic findings, suggested a heart-base tumor. The worsening of the case led the owner to choose for euthanasia. Necropsy revealed a mass at the heart base adhered to the aortic body, and microscopic evaluation confirmed the diagnosis of chemodectoma.

Papiloma de plexo coroide em um cão

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Carcinoma mamário em égua: acahados clínicos e histopatológicos

Uma égua da raça Quarto-de-Milha, doadora de embriões, de vinte e três anos de idade foi atendida no Departamento de Reprodução Animal e Radiologia Veterinária da FMVZ – UNESP – Botucatu, apresentando uma massa ulcerada, de consistência firme, drenando secreção serosanguinolenta, medindo 15cm x 16cm x 14,8cm na mama direita. O exame citológico foi inconclusivo devido à baixa celularidade e predomínio de células inflamatórias. Foi realizada mastectomia unilateral e exame histopatológico e técnicas específicas que revelaram um carcinoma mamário túbulo-papilífero, com extensivo acometimento intralobular e intraductal, estroma abundante e infiltrado inflamatório polimorfonuclear acentuado e difuso. Este trabalho tem como objetivo relatar os achados clínico e histopatológicos de um caso de carcinoma mamário túbulo-papilífero em uma égua, e afirmar a importância do exame citológico e histopatológico no diagnóstico diferencial de processos inflamatórios e neoplasias.

Penectomia em equino com carcinoma de células escamosas

The presence of increased volume in penis and prepuce of horses can be of neoplastic or non-neoplastic origin. Squamous cell carcinoma (SCC), papilloma, fibropapiloma, melanoma and sarcoidorigin. Squamous cell carcinoma (SCC), papilloma, fibropapilloma, melanoma and sarcoid are detached as neoplastic causes. The non-neoplastic causes can be parasitic as habronemiasis and pythiosis, or inflammation, resulting in the formation of exuberant granulation tissue. The penile disorders can be easily confused with each other because they have similar clinical signs. Among epithelial neoplasms affecting penis and prepuce, squamous cell carcinoma is the most common in horses. Thus, it was aimed to report a case of squamous cell carcinoma in a horse and describe the main differential diagnosis for this disease. The additional tests to obtain an accurate diagnosis and the institution of appropriate treatment are essential for the satisfactory repair of penile neoplasms in this species.

Histopathological and cytological analysis of transmissible venereal tumor in dogs after two treatment protocols

The transmissible venereal tumor (TVT) is a contagious neoplasm of round cells that frequently affect dogs. The treatment consists of chemotherapy being more effective the vincristine alone, however the resistance emergence to this agent due multidrug resistance of the P-glycoprotein (P-gp), a transporter protein encoded by the MDR1 gene, has been taking the association with other drugs. Recent studies demonstrated the antitumoral effect of the avermectins when associated to the vincristine in the treatment of some neoplasms. Therefore, the objective of the present study was to compare the effectiveness of standard treatment of TVT with vincristine only as compared to combined treatment with vincristine and ivermectin, evaluated through number of applications of the two protocols, histopathological and cytological analysis from 50 dogs diagnosed with TVT during the period of 2007 to 2010. The combined protocol significant reduces the number of applications and cytological and histopathological findings collaborate with the hypothesis that the combination of vincristine and ivermectin promotes faster healing than the use of vincristine alone. Combination treatment with vincristine and ivermectin could be in the future an excellent therapeutic alternative for the treatment of TVT for probably reducing the resistance to vincristine, simultaneously reducing the cost of TVT treatment and a faster recovery of the dog.

Avaliação do C-MYC, BCL2, KI67 e índice mitótico como fatores prognósticos em cães com linfoma difuso de grandes células B

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudo do peptídeo lítico Hecate e sua conjugação com ácido gálico: atividade contra o carcinoma cervical humano, mecanismo de ação e toxicidade

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Perfil global de expressão de micro-RNAS circulantes como marcadores de resposta terapêutica na leucemia mielóide crônica

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Qualidade de vida em mulheres com câncer de mama submetidas à cirurgia conservadora e mastectomia

Pós-graduação em Enfermagem - FMB

Avaliação da ação da melatonina em células-tronco tumorais mamárias RE-positivas tratadas com disruptores estrogênicos: verificação da via do receptor de estrógeno mediada pelo gene OCT 4

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Análise da ocorrência de metástase intraocular e pulmonar em cadelas portadoras de carcinoma mamário e correlação com mutação e expressão de E-caderina

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)