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2.
Br J Surg ; 105(9): 1210-1220, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29691844

RESUMO

BACKGROUND: This study sought to develop a clinical risk score for resectable colorectal liver metastasis (CRLM) by combining clinicopathological and clinically available biological indicators, including KRAS. METHODS: A cohort of patients who underwent resection for CRLM at the Johns Hopkins Hospital (JHH) was analysed to identify independent predictors of overall survival (OS) that can be assessed before operation; these factors were combined into the Genetic And Morphological Evaluation (GAME) score. The score was compared with the current standard (Fong score) and validated in an external cohort of patients from the Memorial Sloan Kettering Cancer Center (MSKCC). RESULTS: Six preoperative predictors of worse OS were identified on multivariable Cox regression analysis in the JHH cohort (502 patients). The GAME score was calculated by allocating points to each patient according to the presence of these predictive factors: KRAS-mutated tumours (1 point); carcinoembryonic antigen level 20 ng/ml or more (1 point), primary tumour lymph node metastasis (1 point); Tumour Burden Score between 3 and 8 (1 point) or 9 and over (2 points); and extrahepatic disease (2 points). The high-risk group in the JHH cohort (GAME score at least 4 points) had a 5-year OS rate of 11 per cent, compared with 73·4 per cent for those in the low-risk group (score 0-1 point). Importantly, in cohorts from both the JHH and MSKCC (747 patients), the discriminatory capacity of the GAME score was superior to that of the Fong score, as demonstrated by the C-index and the Akaike information criterion. CONCLUSION: The GAME score is a preoperative prognostic tool that can be used to inform treatment selection.


Assuntos
Antígeno Carcinoembrionário/genética , Neoplasias Colorretais/genética , DNA de Neoplasias/genética , Hepatectomia , Neoplasias Hepáticas/genética , Mutação , Proteínas Proto-Oncogênicas p21(ras)/genética , Idoso , Biomarcadores Tumorais/genética , Antígeno Carcinoembrionário/metabolismo , Neoplasias Colorretais/patologia , Neoplasias Colorretais/cirurgia , Análise Mutacional de DNA , Feminino , Seguimentos , Humanos , Fígado/patologia , Neoplasias Hepáticas/secundário , Neoplasias Hepáticas/cirurgia , Masculino , Pessoa de Meia-Idade , Prognóstico , Proteínas Proto-Oncogênicas p21(ras)/metabolismo , Curva ROC , Estudos Retrospectivos , Carga Tumoral
3.
Eur Rev Med Pharmacol Sci ; 22(4): 950-960, 2018 02.
Artigo em Inglês | MEDLINE | ID: mdl-29509243

RESUMO

OBJECTIVE: Endometrial cancer is increasingly prevalent in western societies and affects mainly postmenopausal women; notably incidence rates have been rising by 1.9% per year on average since 2005. Although the early-stage endometrial cancer can be effectively managed with surgery, more advanced stages of the disease require multimodality treatment with varying results. In recent years, endometrial cancer has been extensively studied at the molecular level in an attempt to develop effective therapies. Recently, a family of compounds that alter epigenetic expression, namely histone deacetylase inhibitors, have shown promise as possible therapeutic agents in endometrial cancer. The present review aims to discuss the therapeutic potential of these agents. MATERIALS AND METHODS: This literature review was performed using the MEDLINE database; the search terms histone, deacetylase, inhibitors, endometrial, targeted therapies for endometrial cancer were employed to identify relevant studies. We only reviewed English language publications and also considered studies that were not entirely focused on endometrial cancer. Ultimately, sixty-four articles published until January 2018 were incorporated into our review. RESULTS: Studies in cell cultures have demonstrated that histone deacetylase inhibitors exert their antineoplastic activity by promoting expression of p21WAF1 and p27KIP1, cyclin-dependent kinase inhibitors, that have important roles in cell cycle regulation; importantly, the transcription of specific genes (e.g., E-cadherin, PTEN) that are commonly silenced in endometrial cancer is also enhanced. In addition to these abstracts effects, novel compounds with histone deacetylase inhibitor activity (e.g., scriptaid, trichostatin, entinostat) have also demonstrated significant antineoplastic activity both in vitro and in vivo, by liming tumor growth, inducing apoptosis, inhibiting angiogenesis and potentiating the effects of chemotherapy. CONCLUSIONS: The applications of histone deacetylase inhibitors in endometrial cancer appear promising; nonetheless, additional trials are necessary to establish the therapeutic role, clinical utility, and safety of these promising compounds.


Assuntos
Antineoplásicos/metabolismo , Neoplasias do Endométrio/tratamento farmacológico , Neoplasias do Endométrio/metabolismo , Inibidores de Histona Desacetilases/metabolismo , Histona Desacetilases/metabolismo , Antineoplásicos/farmacologia , Antineoplásicos/uso terapêutico , Endométrio/efeitos dos fármacos , Endométrio/metabolismo , Feminino , Inibidores de Histona Desacetilases/farmacologia , Inibidores de Histona Desacetilases/uso terapêutico , Histona Desacetilases/genética , Humanos , Ácidos Hidroxâmicos/metabolismo , Ácidos Hidroxâmicos/farmacologia , Ácidos Hidroxâmicos/uso terapêutico , Hidroxilaminas/metabolismo , Hidroxilaminas/farmacologia , Hidroxilaminas/uso terapêutico , Quinolinas/metabolismo , Quinolinas/farmacologia , Quinolinas/uso terapêutico
4.
Eur Rev Med Pharmacol Sci ; 21(21): 4918-4923, 2017 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29164568

RESUMO

OBJECTIVE: Malformations of the lymphatic system are recognized as benign congenital tumors that affect infant and children in the perinatal era. In children, these abnormalities usually found in the neck and the axillary region, but they can present in other parts of the body such as mediastinum, pelvis, retroperitoneum as well as in solid organs (e.g., adrenal glands, pancreas, stomach). Our aim is to report our experience on cystic hygromas via two cases and review the literature. MATERIALS AND METHODS: Herein we present two cases of cystic hygroma, the first of female children and the second of a female adult patient respectively. Both of these patients underwent surgical excision of the masses. RESULTS: After the procedure, both patients have recovered well, and no recurrence of the lesion has been noted during the follow-up period. CONCLUSIONS: Surgical treatment remains the gold-standard treatment for these tumors, while other modalities have been used with mixed results.


Assuntos
Neoplasias de Cabeça e Pescoço/diagnóstico , Linfangioma Cístico/diagnóstico , Angiografia , Feminino , Neoplasias de Cabeça e Pescoço/patologia , Neoplasias de Cabeça e Pescoço/cirurgia , Humanos , Lactente , Linfangioma Cístico/patologia , Linfangioma Cístico/cirurgia , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Tomografia Computadorizada por Raios X
5.
Br J Surg ; 104(7): 926-935, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28266705

RESUMO

BACKGROUND: Margin status with resection of colorectal liver metastasis (CRLM) was an important prognostic factor in the years before the introduction of biological chemotherapy. This study examined outcomes following CRLM resection in patients who received neoadjuvant chemotherapy with or without the monoclonal antiangiogenic antibody bevacizumab. METHODS: Patients who underwent surgery for CRLM at the Johns Hopkins Hospital between 2000 and 2015 were identified from an institutional database. Data regarding surgical margin status, preoperative bevacizumab administration and overall survival (OS) were assessed using multivariable analyses. RESULTS: Of 630 patients who underwent CRLM resection, 417 (66·2 per cent) received neoadjuvant chemotherapy with (214, 34·0 per cent) or without (203, 32·2 per cent) bevacizumab. The remaining 213 (33·8 per cent) did not receive neoadjuvant chemotherapy. Univariable analysis found that positive margins were associated with worse 5-year OS than R0 resection (36·2 versus 54·9 per cent; P = 0·005). After dichotomizing by the receipt of preoperative bevacizumab versus chemotherapy alone, the prognostic value of pathological margin persisted among patients who did not receive preoperative bevacizumab (5-year OS 53·0 versus 37 per cent after R0 versus R1 resection; P = 0·010). OS was not significantly associated with margin status in bevacizumab-treated patients (5-year OS 46·8 versus 33 per cent after R0 versus R1 resection; P = 0·081), in whom 5-year survival was slightly worse (presumably reflecting more advanced disease) than among patients treated with cytotoxic agents alone. Pathological margin status was not significantly associated with 5-year OS in patients with a complete or near-complete response to chemotherapy and bevacizumab (43 versus 30 per cent after R0 versus R1 resection; P = 0·917), but this may be due to a type II error. CONCLUSION: The impact of margin status varied according to the receipt of bevacizumab. Bevacizumab may have a role to play in improving outcomes among patients with more advanced disease.


Assuntos
Inibidores da Angiogênese/uso terapêutico , Bevacizumab/uso terapêutico , Neoplasias Colorretais/patologia , Hepatectomia , Neoplasias Hepáticas/patologia , Neoplasias Hepáticas/cirurgia , Terapia Neoadjuvante , Idoso , Feminino , Humanos , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Hepáticas/mortalidade , Masculino , Pessoa de Meia-Idade , Prognóstico , Modelos de Riscos Proporcionais , Estudos Retrospectivos
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