RESUMO
Background: The role of transarterial chemoembolization (TACE) in the treatment of advanced hepatocellular carcinoma (HCC) is unconfirmed. This study aimed to assess the efficacy and safety of immune checkpoint inhibitors (ICIs) plus anti-vascular endothelial growth factor (anti-VEGF) antibody/tyrosine kinase inhibitors (TKIs) with or without TACE as first-line treatment for advanced HCC. Methods: This nationwide, multicenter, retrospective cohort study included advanced HCC patients receiving either TACE with ICIs plus anti-VEGF antibody/TKIs (TACE-ICI-VEGF) or only ICIs plus anti-VEGF antibody/TKIs (ICI-VEGF) from January 2018 to December 2022. The study design followed the target trial emulation framework with stabilized inverse probability of treatment weighting (sIPTW) to minimize biases. The primary outcome was overall survival (OS). Secondary outcomes included progression-free survival (PFS), objective response rate (ORR), and safety. The study is registered with ClinicalTrials.gov, NCT05332821. Findings: Among 1244 patients included in the analysis, 802 (64.5%) patients received TACE-ICI-VEGF treatment, and 442 (35.5%) patients received ICI-VEGF treatment. The median follow-up time was 21.1 months and 20.6 months, respectively. Post-application of sIPTW, baseline characteristics were well-balanced between the two groups. TACE-ICI-VEGF group exhibited a significantly improved median OS (22.6 months [95% CI: 21.2-23.9] vs 15.9 months [14.9-17.8]; P < 0.0001; adjusted hazard ratio [aHR] 0.63 [95% CI: 0.53-0.75]). Median PFS was also longer in TACE-ICI-VEGF group (9.9 months [9.1-10.6] vs 7.4 months [6.7-8.5]; P < 0.0001; aHR 0.74 [0.65-0.85]) per Response Evaluation Criteria in Solid Tumours (RECIST) version 1.1. A higher ORR was observed in TACE-ICI-VEGF group, by either RECIST v1.1 or modified RECIST (41.2% vs 22.9%, P < 0.0001; 47.3% vs 29.7%, P < 0.0001). Grade ≥3 adverse events occurred in 178 patients (22.2%) in TACE-ICI-VEGF group and 80 patients (18.1%) in ICI-VEGF group. Interpretation: This multicenter study supports the use of TACE combined with ICIs and anti-VEGF antibody/TKIs as first-line treatment for advanced HCC, demonstrating an acceptable safety profile. Funding: National Natural Science Foundation of China, National Key Research and Development Program of China, Jiangsu Provincial Medical Innovation Center, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, and Nanjing Life Health Science and Technology Project.
RESUMO
Hepatocellular carcinoma (HCC) is one of the most common malignancies and the third leading cause of cancer-related deaths globally. Hepatic arterial infusion chemotherapy (HAIC) treatment is widely accepted as one of the alternative therapeutic modalities for HCC owing to its local control effect and low systemic toxicity. Nevertheless, although accumulating high-quality evidence has displayed the superior survival advantages of HAIC of oxaliplatin, fluorouracil, and leucovorin (HAIC-FOLFOX) compared with standard first-line treatment in different scenarios, the lack of standardization for HAIC procedure and remained controversy limited the proper and safe performance of HAIC treatment in HCC. Therefore, an expert consensus conference was held on March 2023 in Guangzhou, China to review current practices regarding HAIC treatment in patients with HCC and develop widely accepted statements and recommendations. In this article, the latest evidence of HAIC was systematically summarized and the final 22 expert recommendations were proposed, which incorporate the assessment of candidates for HAIC treatment, procedural technique details, therapeutic outcomes, the HAIC-related complications and corresponding treatments, and therapeutic scheme management.
Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Humanos , Carcinoma Hepatocelular/patologia , Neoplasias Hepáticas/patologia , Resultado do Tratamento , Artéria Hepática/patologia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Fluoruracila/uso terapêutico , Infusões Intra-ArteriaisRESUMO
The prognostic value of phosphatase and tensin homolog (PTEN) negativity in breast cancer has been evaluated by many studies but remains controversial. We conducted a meta-analysis to assess the association of PTEN negativity with overall survival and disease-free survival. Thirty-two studies with 4393 patients were identified. PTEN negativity was significantly associated with unfavorable overall survival in breast cancer (hazard ratio=1.89, 95% confidence interval 1.58-2.26), with low heterogeneity among the studies (I(2)=25%, P=0.160) and no evidence for publication bias. Meta-analysis of multivariate hazard ratios and sensitivity analyses did not materially change the results. The data on disease-free survival was heterogeneous (I(2)=61.9%, P<0.001), with a summary hazard ratio of 1.57 (95% confidence interval 1.31-1.89). The exact source of heterogeneity remains unclear. We thus concluded that PTEN negativity was significantly associated with unfavorable prognosis in terms of overall survival in breast cancer.
Assuntos
Neoplasias da Mama/diagnóstico , Neoplasias da Mama/metabolismo , Fosfoproteínas Fosfatases/metabolismo , Tensinas/metabolismo , Intervalo Livre de Doença , Humanos , PrognósticoRESUMO
The prognostic value of phosphorylated Akt (pAkt) overexpression in breast cancer has been investigated by many studies with inconsistent results. This systematic review was conducted to evaluate the association of pAkt overexpression with breast cancer prognosis in terms of overall survival and disease-free survival. Three electronic databases (PubMed, EMBASE and Chinese Biomedical Literature Database) were comprehensively searched. Hazard ratios (HRs) with 95% confidence intervals (CIs) from different studies were combined using the random-effects model. In total, 33 studies with 9,836 patients were included for final analysis. The summary HR for overall survival and disease-free survival was 1.52 (95% CI: 1.29-1.78) and 1.28 (95% CI: 1.13-1.45), respectively, indicating higher risk of death and disease recurrence associated with pAkt overexpression. The results were robust in sensitivity analyses by omitting one study each time and by using the fixed-effects model instead. Subgroup and meta-regression analyses did not show that the prognostic effect of pAkt overexpression would change materially with such factors as population, status of hormone receptors, hormonal or trastuzumab treatment given, analyzing method (univariate versus multivariate) and methodological quality of the original studies. In conclusion, the available evidence suggests that pAkt overexpression is an adverse prognostic factor for breast cancer.
Assuntos
Neoplasias da Mama/enzimologia , Proteínas Proto-Oncogênicas c-akt/metabolismo , Intervalo Livre de Doença , Feminino , Humanos , Fosforilação , Viés de Publicação , Análise de RegressãoRESUMO
KRAS mutations have been established as a major predictive biomarker for resistance to the treatment of metastatic colorectal cancer (mCRC) with anti-epidermal growth factor receptor monoclonal antibodies (anti-EGFR MoAbs). However, many patients with KRAS wild-type tumors still do not respond to the treatment. We conducted a systematic review with meta-analysis to assess whether BRAF mutations, PIK3CA mutations and PTEN loss can predict the outcomes of patients with KRAS wild-type mCRC treated with anti-EGFR MoAbs. Studies that explored the association of one or more of the three biomarkers with progression-free survival (PFS), overall survival (OS) and/or objective response rate (ORR) were identified through August 2012. Summary hazard ratios (HRs) and rate differences (RDs) and corresponding 95% confidence intervals (CIs) were calculated by using the random-effects model. BRAF mutations, PIK3CA exon 20 mutations and PTEN loss were all associated with shorter PFS (HR = 2.59, 95% CI 1.67-4.03; HR = 2.52, 95% CI 1.33-4.78 and HR = 1.75, 95% CI 1.19-2.56, respectively), shorter OS (HR = 2.74, 95% CI 1.79-4.19; HR = 3.29, 95% CI 1.60-6.75 and HR = 1.85, 95% CI 1.30-2.64, respectively) and lower ORR (RD = -36%, 95% CI -44 to -28%; RD = -38%, 95% CI -51 to -24% and RD = -41%, 95% CI -68 to -14%, respectively). PIK3CA exon 9 mutations were associated with none of the outcomes. Studies with relevant data consistently demonstrated a stronger predictive power of combined multiple biomarkers as compared to one alteration alone. These results suggest that BRAF mutations, PIK3CA exon 20 mutations and PTEN loss are predictive of worseoutcomes in KRAS wild-type mCRC treated with anti-EGFR MoAbs [corrected]. However, the quality of included studies varied, and some of the meta-analyses were limited by significant between-study heterogeneity. In the future, well-designed large randomized controlled trials conducted in KRAS wild-type mCRC patients with subgroup analysis according to BRAF, PIK3CA exon 20 and PTEN status are essential to fully assess the clinical relevance of these biomarkers.
Assuntos
Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/mortalidade , PTEN Fosfo-Hidrolase/genética , Fosfatidilinositol 3-Quinases/genética , Proteínas Proto-Oncogênicas B-raf/genética , Proteínas Proto-Oncogênicas/genética , Proteínas ras/genética , Adulto , Idoso , Idoso de 80 Anos ou mais , Anticorpos Monoclonais/uso terapêutico , Biomarcadores Tumorais , Classe I de Fosfatidilinositol 3-Quinases , Resistencia a Medicamentos Antineoplásicos , Receptores ErbB/antagonistas & inibidores , Receptores ErbB/imunologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Proteínas Proto-Oncogênicas/metabolismo , Proteínas Proto-Oncogênicas p21(ras) , Resultado do Tratamento , Adulto Jovem , Proteínas ras/metabolismoRESUMO
BACKGROUND: This study aims to comprehensively summarize the currently available evidences on the efficacy and safety of gemcitabine plus erlotinib for treating advanced pancreatic cancer. METHODOLOGY/PRINCIPAL FINDINGS: PubMed, EMBASE, The Cochrane Library and abstracts of recent major conferences were systematically searched to identify relevant publications. Studies that were conducted in advanced pancreatic cancer patients treated with gemcitabine plus erlotinib (with or without comparison with gemcitabine alone) and reporting objective response rate, disease control rate, progression-free survival, time-to-progression, overall survival, 1-year survival rate and/or adverse events were included. Data on objective response rate, disease control rate, 1-year survival rate and adverse events rate, respectively, were combined mainly by using Meta-Analyst software with a random-effects model. Data on progression-free survival, time-to-progression and overall survival were summarized descriptively. Sixteen studies containing 1,308 advanced pancreatic cancer patients treated with gemcitabine plus erlotinib were included. The reported median progression-free survival (or time-to-progression), median overall survival, 1-year survival rates, objective response rates and disease control rates were 2-9.6 months, 5-12.5 months, 20%-51%, 0%-28.6% and 25.0%-83.3%, respectively. The weighted 1-year survival rate, objective response rate and disease control rate based on studies reporting robust results were 27.9%, 9.1% and 57.0%, respectively. According to the studies with relevant data, the incidences of total and severe adverse events were 96.3% and 62.9%, respectively. The most frequently reported adverse events were leucopenia, rash, diarrhea, vomitting, neutropenia, thrombocytopenia, anaemia, stomatitis, drug-induced liver injury, fatigue and fever. Compared with gemcitabine alone, the progression-free survival and overall survival with gemcitabine plus erlotinib were significantly longer, but there were also more deaths and interstitial lung disease-like syndrome related to this treatment. CONCLUSIONS/SIGNIFICANCE: Gemcitabine plus erlotinib represent a new option for the treatment of advanced pancreatic cancer, with mild but clinically meaningful additive efficacy compared with gemcitabine alone. Its safety profile is generally acceptable, although careful management is needed for some specific adverse events.
Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Desoxicitidina/análogos & derivados , Neoplasias Pancreáticas/tratamento farmacológico , Quinazolinas/administração & dosagem , Antimetabólitos Antineoplásicos/administração & dosagem , Desoxicitidina/administração & dosagem , Intervalo Livre de Doença , Cloridrato de Erlotinib , Humanos , Neoplasias Pancreáticas/mortalidade , Inibidores de Proteínas Quinases/administração & dosagem , Fatores de Tempo , Resultado do Tratamento , GencitabinaRESUMO
BACKGROUND: The authors conducted a systematic review and meta-analysis to examine whether patients who had metastatic colorectal cancer (mCRC) with the v-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog (KRAS) p.G13D mutation (an amino acid substitution at position 13 in KRAS from a glycine to an aspartic acid) and received cetuximab treatment had better clinical outcomes than patients who had mCRC tumors with KRAS codon 12 mutations. METHODS: Relevant studies were identified by a search of MEDLINE, EMBASE, the Chinese Biomedical Database, and Wan Fang Digital Journals from inception to October 2011. The primary clinical outcomes included the objective response rate (ORR), progression-free survival (PFS), and overall survival (OS). The pooled relative risk (RR) or hazard ratio (HR) was estimated by using fixed-effects or random-effects models according to heterogeneity between studies. RESULTS: Ten studies were considered eligible that included 1487 patients with mCRC. Patients who had tumors with the KRAS p.G13D mutation had a significantly higher ORR (10 studies; RR, 1.642; 95% confidence interval [CI], 1.131-2.384), longer PFS (1 study; HR, 0.54; 95% CI, 0.36-0.81), and longer OS (1 study; HR, 0.52; 95% CI, 0.33-0.80) than patients who had tumors with KRAS codon 12 mutations. Compared with patients who had KRAS wild-type tumors, patients with the p.G13D mutation had a significantly lower ORR (9 studies; RR, 0.540; 95% CI, 0.381-0.765) and nonsignificantly shorter PFS (1 study; HR, 0.99; 95% CI, 0.68-1.45) and OS (1 study; HR, 1.01; 95% CI, 0.66-1.54). CONCLUSIONS: Patients who had mCRC with the KRAS p.G13D mutation appeared to benefit more from cetuximab than patients who had tumors with KRAS codon 12 mutations. However, because of the limited sample sizes in the current meta-analysis, these results should be interpreted with caution.
Assuntos
Anticorpos Monoclonais/uso terapêutico , Antineoplásicos/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/genética , Mutação , Proteínas Proto-Oncogênicas/genética , Proteínas ras/genética , Adulto , Idoso , Idoso de 80 Anos ou mais , Substituição de Aminoácidos , Anticorpos Monoclonais Humanizados , Ácido Aspártico/genética , Cetuximab , Códon , Neoplasias Colorretais/mortalidade , Neoplasias Colorretais/patologia , Intervalo Livre de Doença , Feminino , Glicina/genética , Humanos , Masculino , Pessoa de Meia-Idade , Proteínas Proto-Oncogênicas p21(ras) , Resultado do TratamentoRESUMO
BACKGROUND: Epidermal growth factor receptor gene copy number (EGFR GCN) has been heavily investigated as a potential predictive biomarker for the treatment of metastatic colorectal cancer (mCRC) with anti-EGFR monoclonal antibodies (MAbs). The objective of this study was to systematically review current evidences on this issue. METHODS: PubMed, EMBASE, The Cochrane Library, Chinese Biomedical Literature Database, Wanfang Data, and the conference abstracts of American Society of Clinical Oncology and European Society of Medical Oncology were comprehensively searched. Studies that reported the objective response rate (ORR), progression-free survival, and/or overall survival of mCRC patients treated with anti-EGFR MAbs, stratified by EGFR GCN status, were included. The effect measures for binary outcome (response) and time-to-event outcomes (progression-free survival and overall survival) were risk difference and hazard ratio, respectively. Statistical heterogeneity among the studies was assessed by the Cochran's Q-test and the I2 statistic. If appropriate, a quantitative synthesis of data from different studies would be conducted with a random-effects model. RESULTS: Nineteen eligible studies were identified. The criteria for increased EGFR GCN (GCN+) were highly inconsistent across different studies. The prevalence of GCN + ranged from 6.9% to 88.9%, and the difference in ORR between patients with GCN + and those with non-increased EGFR GCN (GCN-) varied from -28% to 84%. Because of the significant heterogeneity, no quantitative synthesis of data was performed. There was a general trend towards higher ORR in patients with GCN+. The difference in ORRs between patients with GCN + and those with GCN- was even greater in KRAS wild-type patients, while in KRAS mutated patients the difference often did not exist. Almost all patients with EGFR amplification responded to the treatment. However, the prevalence of EGFR amplification was generally low. Incomplete data on progression-free survival and overall survival seemingly supported the findings on ORR. CONCLUSIONS: Although increased EGFR GCN is generally associated with a better outcome of anti-EGFR MAbs treatment, especially among patients with wild-type KRAS, the clinical utility of this biomarker for selecting recipients of anti-EGFR MAbs would be severely limited by the heterogeneous scoring system and the poor reproducibility of EGFR GCN enumeration due to technical reasons.
Assuntos
Anticorpos Monoclonais/uso terapêutico , Biomarcadores Tumorais/genética , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/enzimologia , Receptores ErbB/antagonistas & inibidores , Receptores ErbB/genética , Dosagem de Genes , Anticorpos Monoclonais/imunologia , Biomarcadores Tumorais/metabolismo , Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , Intervalo Livre de Doença , Receptores ErbB/imunologia , Receptores ErbB/metabolismo , Humanos , Resultado do TratamentoRESUMO
A 51-year-old Chinese male with a 20-year history of hepatitis B was diagnosed with hepatocellular carcinoma in the right anterior portion of the liver, sized 3.5 cm × 3.2 cm, and was treated with radiofrequency ablation (RFA) on December 18, 2001. The patient did not receive antiviral therapy for hepatitis B virus after RFA. The treated lesion reduced gradually and reached its minimum size of 1.7 cm × 1.5 cm seven years later on November 18, 2008. However computed tomography findings revealed that a recurrence lesion of 6.0 cm × 4.8 cm which was histologically confirmed overlapped the previous treated lesion at the 8th year on December 3, 2009. Although recurrence at 8 years after curative RFA is a rare event, such a possibility must be kept in mind. To find and treat the recurrence lesion promptly, long-term and close monitoring is warranted after RFA. Meanwhile, the recurrence-prevention therapy is as important as close monitoring for those patients with a history of hepatitis B.
Assuntos
Carcinoma Hepatocelular/cirurgia , Ablação por Cateter , Neoplasias Hepáticas/cirurgia , Recidiva Local de Neoplasia/diagnóstico , Antivirais/uso terapêutico , Carcinoma Hepatocelular/etiologia , Hepatite B Crônica/complicações , Hepatite B Crônica/tratamento farmacológico , Humanos , Neoplasias Hepáticas/etiologia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/etiologiaRESUMO
OBJECTIVE: To compare the short-term curative effect of photodynamic therapy (PDT), PDT combined with chemotherapy and chemotherapy alone on the advanced esophageal cancer patients. METHODS: Retrospective analysis of 90 patients of esophageal cancer underwent PDT, PDT combined with chemotherapy and chemotherapy alone from 2004 to 2007 (stages III-IV), including 27 cases received PDT alone, 33 cases received PDT combined with chemotherapy and 30 cases chemotherapy alone. The enrolled patients were treated with intravenous administration of Photofrin as the photosensitizer at a dose of 2mg/kg. 630 nm laser irradiation was performed through optical fiber that passed through the biopsy channel of a flexible endoscope after 48 h. Two days later, the necrotic tissue was removed, and the primary sites and other newly identified lesions were subjected to a second irradiation and then the residual necrotic tissue was removed according to the patients' condition. Electronic endoscopy was performed to observe the effectiveness on tumor after 1 month. In PDT combined with chemotherapy group, chemotherapy regimen was 5-FU and DDP, administered 4 cycles after PDT and chemotherapy alone group only chemotherapy regimen 5-FU and DDP for four cycles. All the 90 patients were followed up for 2 years. RESULTS: Symptomatic palliation rate of the PDT alone group, the complex treatment group and chemotherapy alone group was 85.2%, 93.9% and 60.0%, respectively, and effective rate under endoscopy was 85.2%, 90.9% and 63.3%, respectively, there is no statistically significant difference; the survival rate of 2 years was 29.6%, 54.5% and 16.7%, respectively, and medium survival time is longer (III stages 13 m, 22 m, 10 m; IV stages 7 m, 5m, 4m), there is statistically significant difference (p=0.046). CONCLUSION: PDT combined with chemotherapy for the advanced esophageal cancer is superior to PDT alone and chemotherapy alone.
Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Esofágicas/tratamento farmacológico , Fotoquimioterapia/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Cisplatino/administração & dosagem , Terapia Combinada , Éter de Diematoporfirina/uso terapêutico , Feminino , Fluoruracila/administração & dosagem , Humanos , Masculino , Pessoa de Meia-Idade , Fármacos Fotossensibilizantes/uso terapêutico , Estudos RetrospectivosRESUMO
OBJECTIVE: To assess the value of (18)F-fluoro-2-deoxy-D-glucose positron emission tomography-computed tomography ((18)F-FDG PET-CT) in ultrasound-guided local ablation of malignant liver tumors. METHODS: Thirteen patients with 35 local residual tumor foci following previous tumor ablation underwent (18)F-FDG PET-CT and ultrasound-guided local ablation with intratumoral alcohol injection. RESULTS: After the second local ablation guided by (18)F-FDG PET-CT and ultrasound, radioactive defects were detected in the corresponding location in 31 of the 35 residual foci, and after the third local ablation, the other 4 foci also showed radioactive defects. CONCLUSION: (18)F-FDG PET-CT can sensitively and accurately identify tissue necrosis and residual tumors, and serves as an excellent approach for ultrasound-guided local ablation of local residual tumors.
Assuntos
Técnicas de Ablação , Fluordesoxiglucose F18 , Neoplasias Hepáticas/diagnóstico , Neoplasias Hepáticas/cirurgia , Técnicas de Ablação/efeitos adversos , Adulto , Idoso , Feminino , Humanos , Neoplasias Hepáticas/diagnóstico por imagem , Masculino , Pessoa de Meia-Idade , Tomografia por Emissão de Pósitrons , Complicações Pós-Operatórias , Estudos Retrospectivos , Tomografia Computadorizada por Raios X , Resultado do TratamentoRESUMO
OBJECTIVE: To evaluate the efficacy of bevacizumab in combination of irinotecan,fluorouracil and leucovorin for metastatic colorectal cancer treated by failed prior oxaliplatin -based regiment. METHODS: Sixty-two patients were randomly divided into two groups, group A of 30 patients received bevacizumab plus irinotecan, fluorouracil and leucovorin, group B of 32 patients received irinotecan, fluorouracil and leucovorin. The response rate,change of tumor markers,one year survival rate and safety were observed. RESULTS: Tumor response rate was 30% in group A, 21.8% in group B respectively. Disease control rate(CR+PR+SD) was 80% in group A, 50% in group B. The obvious change of concentration of tumor markers was observed between pre-treatment and post-treatment, which was significantly different in group A(P<0.05). One year survival rate, median of time to progression and median duration of survival between group A and group B were 26.7% vs 18.8%, 5.9 months vs 3.9 months, 10.9 months vs 8.9 months(P<0.05). The adverse effect in group A was the same as group B. Bevacizumab was associated with hypertension and bradycardia. CONCLUSIONS: The chemotherapy of bevacizumab combined with irinotecan, fluorouracil and leucovorin results in better efficacy in patients with progressive metastatic colorectal cancer.
Assuntos
Anticorpos Monoclonais/uso terapêutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Adulto , Idoso , Anticorpos Monoclonais Humanizados , Bevacizumab , Camptotecina/administração & dosagem , Camptotecina/análogos & derivados , Neoplasias Colorretais/patologia , Feminino , Fluoruracila/administração & dosagem , Humanos , Irinotecano , Leucovorina/administração & dosagem , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica/tratamento farmacológico , Estadiamento de Neoplasias , Taxa de SobrevidaRESUMO
OBJECTIVE: To investigate the clinical significance of vascular endothelial growth factor (VEGF) levels in serums of colorectal cancer patients at stage IV. METHODS: Using enzyme linked immunosorbent assay (ELISA) to detect the VEGF levels in serums of 45 colorectal cancer patients at stage IV, and 20 healthy served as normal control. RESULTS: The mean concentration of VEGF in 45 colorectal cancer patients at the 7 day after operation were significantly lower than that before operation (P<0.01). The mean concentration of VEGF in the patients who benefit from bevacizumab showed no statistical difference from the levels of who did not benefit (P=0.554). CONCLUSION: The VEGF levels in colorectal patients at stage IV are lowed as the load of tumor decrease. The circulating levels of VEGF seem not predict the response to bevacizumab in colorectal cancer patients at stage IV.
Assuntos
Neoplasias Colorretais/sangue , Fator A de Crescimento do Endotélio Vascular/sangue , Adolescente , Adulto , Idoso , Anticorpos Monoclonais/administração & dosagem , Anticorpos Monoclonais Humanizados , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Bevacizumab , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/patologia , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Adulto JovemRESUMO
OBJECTIVE: To assess the correlations between Survivin and vascular endothelial growth factor (VEGF) in hepatocellular carcinoma (HCC) and their clinical significance. METHODS: The expressions of Survivin and VEGF in 50 HCC specimens and 20 normal hepatic tissue specimens were detected by immunohistochemistry, and the results were analyzed in relation to the patients' clinicopathologic characteristics. RESULTS: Of the 50 HCC specimens, 32 (64.0%) were positive for Survivin expression, and 34 (68.0%) were positive for VEGF expression. Survivin expression was not detected in normal hepatic tissues, and 2 (10%) of these tissues were positive for VEGF, showing significant difference in Survivin and VEGF expressions between HCC specimens and normal hepatic tissues. Survivin and VEGF expressions were not correlated to the patients' gender, age, tumor size, degree of differentiation and alpha fetoprotein level (P<0.05), but related to the clinical stage and lymph node metastasis of HCC (P<0.05). Correlation analysis indicated a close correlation between the expressions of survivin and VEGF in the HCC specimens (chi 2=6.69, P<0.05). CONCLUSION: Survivin and VEGF are over-expressed in HCC tissues, and may theoretically serve as the targets of molecular targeted drugs. Detection of the expressions of Survivin and VEGF in HCC tissues may provide assistance for prognostic evaluation of the patients.
Assuntos
Carcinoma Hepatocelular/metabolismo , Neoplasias Hepáticas/metabolismo , Proteínas Associadas aos Microtúbulos/biossíntese , Fator A de Crescimento do Endotélio Vascular/biossíntese , Adulto , Idoso , Carcinoma Hepatocelular/patologia , Feminino , Humanos , Imuno-Histoquímica , Proteínas Inibidoras de Apoptose , Neoplasias Hepáticas/patologia , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Prognóstico , SurvivinaRESUMO
OBJECTIVE: To establish a nude mouse model of malignant ascites with human ovarian carcinoma cell line OVCAR3 which highly expresses VEGF and evaluate the therapeutic of Avastin combined with cisplan. METHODS: Forty-eight nude mice with malignant ascites resulting from intraperitoneal transplantation of human ovarian carcinoma cell line OVCAR3 were treated with intraperitoneal injection of Avastin, cisplan, their combination, and PBS, respectively, to observe the effect on ascites development, VEGF content in the ascites, peritoneal permeability, development of new vessels and number of tumor cells in the ascites. RESULTS: Avastin obviously inhibited ascites accumulation and peritoneal capillary permeability, reduced VEGF protein level and microvascular density in the tumor tissues and the number of red cells and tumor cells in the malignant ascites, and prolonged the survival of the mice. The combination of Avastin and cisplan further enhanced the therapeutic efficacy of Avastin. CONCLUSION: The bio-chemotherapeutic strategy with Avastin combined with cisplan can be a promising method for treatment of malignant ascites.
Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Ascite/prevenção & controle , Neoplasias Ovarianas/complicações , Fator A de Crescimento do Endotélio Vascular/metabolismo , Animais , Anticorpos Monoclonais/administração & dosagem , Anticorpos Monoclonais Humanizados , Ascite/etiologia , Ascite/metabolismo , Bevacizumab , Linhagem Celular Tumoral , Cisplatino/administração & dosagem , Sinergismo Farmacológico , Ensaio de Imunoadsorção Enzimática , Feminino , Regulação Neoplásica da Expressão Gênica , Humanos , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Nus , Neovascularização Patológica/patologia , Neovascularização Patológica/prevenção & controle , Neoplasias Ovarianas/genética , Neoplasias Ovarianas/patologia , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Resultado do Tratamento , Fator A de Crescimento do Endotélio Vascular/genética , Ensaios Antitumorais Modelo de XenoenxertoRESUMO
OBJECTIVE: To evaluate the efficacy of Avastin in combination with irinotecan for metastatic colorectal cancer. METHODS: Ninety patients were randomly divided into 3 equal groups to receive Avastin plus irinotecan (group A), FOLFIRI (group B) and FOLFOX7 (group C) for two cycles, respectively. The response rate and changes in tumor maker levels were observed. RESULTS: The tumor response rate was 43.3% in group A, 27.7% in group B and 30.0% in group C. The disease control rate (complete response+partial response+stable disease) was 80% in group A, 53.3% in group B and 50.0% in group C. Obvious changes in tumor marker levels were observed in the 3 groups after treatment, which were most conspicuous in group A (P<0.05). CONCLUSION: The addition of Avastin to irinotecan chemotherapy results in significant improvement of clinical efficacy in patients with metastatic colorectal cancer.
Assuntos
Adenocarcinoma/tratamento farmacológico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Adenocarcinoma/patologia , Adulto , Idoso , Anticorpos Monoclonais/administração & dosagem , Anticorpos Monoclonais Humanizados , Bevacizumab , Camptotecina/administração & dosagem , Camptotecina/análogos & derivados , Neoplasias Colorretais/patologia , Feminino , Fluoruracila/administração & dosagem , Humanos , Irinotecano , Leucovorina/administração & dosagem , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Resultado do TratamentoRESUMO
OBJECTIVE: To compare the therapeutic effects of biochemotherapy regimen with Herceptin plus taxol (TAX) and the chemotherapy regimen with epirubicin plus TAX against Her-2/neu-positive breast cancer and observe the changes in serum tumor markers in patients receiving biochemotherapy. METHODS: Seventy-three patients with advanced breast cancer positive for Her-2/neu as revealed by immunohistochemistry were divided into the study group (n=32) to receive treatment with the regimen of Herceptin plus TAX and control group (n=41) with the regimen of epirubicin(EPI) plus TAX. The therapeutic effects of the regimens were observed and in the study group, the relationship of the therapeutic effect with Her-2/neu positivity and changes in serum tumor markers were examined. RESULTS: The objective response rate and clinical benefit response rate were obviously higher in the study group than in the control group. In the study group, the clinical response rate of patients with positive immunostaining for Her-2/neu of grades 1+, 2+ and 3+ were 0%, 44.4% and 63.6%, respectively, as compared with those in the control group of 8.3%, 36.4%, and 38.9%, respectively, and the treatment resulted in lowered levels of serum tumor markers without significant changes in CA153, tps and CEA (P<0.05) after treatment, but CA125 showed no significant difference (P>0.05). CONCLUSIONS: In patients with advanced breast cancer with positive immunostaining for Her-2/neu of grade 3+, the regimen of Herceptin plus TAX can be more effective than the chemotherapeutic regimen of EPI plus TAX. Patients with Her-2/neu (+++) benefit more from the treatment than those with Her-2/neu (++). Serum CEA, CA153 and TPS levels also possess some value in evaluating the therapeutic effects of the regimens.