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1.
Gan To Kagaku Ryoho ; 50(3): 363-365, 2023 Mar.
Artigo em Japonês | MEDLINE | ID: mdl-36927910

RESUMO

A 78-year-old man presenting with a chief complaint of discomfort was found to have advanced gastric cancer invading pancreatic body, and with the metastasis of paraaortic lymph node(No. 16). After 3 courses of the S-1 plus oxaliplatin regimen, CT scan showed the disappearance of invasion to pancreatic body, and the No. 16 lymph node. Then total gastrectomy(D2+No. 19+No. 16a1+No. 16a2), Roux-en-Y reconstruction and cholecystectomy were undergoing. Histological assessment for treatment response showed Grade 1a, and we finally diagnosed gastric cancer: MU, Post, type 2, 30×20 mm, tub1>por1, ypT3, ypN1, ycM0, ypStage ⅡB. The postoperative course was uneventful, and the patient was discharged from the hospital on postoperative day 19. S-1 as adjuvant chemotherapy was performed for 12 months, and no recurrence was recognized for 5 years and 9 months after operation.


Assuntos
Neoplasias Gástricas , Masculino , Humanos , Idoso , Neoplasias Gástricas/tratamento farmacológico , Neoplasias Gástricas/cirurgia , Neoplasias Gástricas/patologia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Linfonodos/patologia , Excisão de Linfonodo , Quimioterapia Adjuvante , Gastrectomia
2.
Gan To Kagaku Ryoho ; 50(13): 1866-1868, 2023 Dec.
Artigo em Japonês | MEDLINE | ID: mdl-38303234

RESUMO

In our department, total neoadjuvant therapy(TNT), which is a combination of preoperative chemotherapy and preoperative chemoradiotherapy(nCRT), has been introduced for the purpose of local and systemic disease control for lower rectal cancer. For patients in whom a clinical complete response(cCR)was obtained by TNT, we avoid the surgery and preserve organs, and follow-up strictly under the informed consent(watch and wait). In addition, for patients with remarkably reduced primary lesions(near cCR)without lymphadenopathy after TNT, the option of omitting total mesorectal excision (TME)and performing organ preservation by local excision can be introduced. Here, we report a case in which near cCR was obtained by TNT and organ preservation was performed by local excision. A 67-year-old man with lower rectal cancer(AV 5 cm, 15 mm, type 2, cT2N0M0, cStage Ⅰ)was referred to our department with a desire to preserve the anus. TNT with nCRT→CAPOX was performed, and near cCR was obtained. After that, full thickness local excision of the residual disease was performed by transanal minimally invasive surgery(TAMIS). The final pathological diagnosis was Rb, 0.7 mm, por2, ypT1a, ypPM0, ypDM0, ypRM0. No recurrence is recognized for 3 years and 10 months after the operation.


Assuntos
Terapia Neoadjuvante , Neoplasias Retais , Masculino , Humanos , Idoso , Resultado do Tratamento , Preservação de Órgãos , Estudos Retrospectivos , Recidiva Local de Neoplasia/tratamento farmacológico , Conduta Expectante , Neoplasias Retais/tratamento farmacológico , Neoplasias Retais/cirurgia , Quimiorradioterapia
3.
Gan To Kagaku Ryoho ; 49(3): 297-299, 2022 Mar.
Artigo em Japonês | MEDLINE | ID: mdl-35299186

RESUMO

The watch and wait strategy(W&W)is optional non-operative management for lower advanced rectal cancer patients who have achieved clinical complete response(cCR)following neoadjuvant treatment. However, the clinical implication of surgical intervention for the primary lesion is not well elucidated when distant metastasis appears with complete remission of the primary lesion. We report a case of a 47-year-old-woman with lower rectal cancer presenting inguinal lymph node metastasis after total neoadjuvant therapy(TNT)and managed through W&W after achieving cCR following chemotherapy. TNT was performed as a preoperative treatment for lower advanced rectal cancer, cT3N2aM0, cStage Ⅲb. Although the primary lesion and mesenteric lymph node metastasis completely disappeared, bilateral inguinal lymph node metastasis appeared immediately after TNT. The patient was treated with FOLFOX plus panitumumab for rectal cancer with RAS and BRAF wild-type. Four months after chemotherapy, the inguinal lymph node metastasis disappeared, and W&W was used for the management. She stayed alive without recurrence 1 year and 9 months after chemotherapy.


Assuntos
Terapia Neoadjuvante , Neoplasias Retais , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Feminino , Humanos , Linfonodos/patologia , Metástase Linfática , Pessoa de Meia-Idade , Neoplasias Retais/tratamento farmacológico , Neoplasias Retais/cirurgia
4.
World J Surg Oncol ; 19(1): 34, 2021 Jan 30.
Artigo em Inglês | MEDLINE | ID: mdl-33516219

RESUMO

AIM: The clinical significance of the geriatric nutritional risk index (GNRI) in locally advanced rectal cancer (LARC) patients undergoing preoperative chemoradiotherapy (CRT) followed by curative surgery has not been comprehensively evaluated. METHODS: This retrospective study enrolled 93 LARC patients diagnosed with clinical lymph node metastasis. The GNRI formula was as follows: 1.489 × albumin (g/l) + 41.7 × current weight/ideal weight. Patients were categorized as GNRI low (GNRI < 104.25) or high (GNRI > 104.25) according to the receiver operating characteristic (ROC) curve for survival analysis. The impact of GNRI status on the prognostic outcomes of curative surgery for LARC was examined. RESULTS: There were 55 (59.14%) and 38 (40.86%) patients in the GNRI high and low groups, respectively. Of the investigated demographic factors, age, pathological tumor invasion, and presence of recurrence were significantly associated with the GNRI value. In Kaplan-Meier analysis, overall survival (OS) and disease-free survival (DFS) were significantly shorter in the GNRI low group (OS: p = 0.00020, DFS: p = 0.0044, log-rank test). Multivariate analysis using a Cox proportional hazards model showed that a low GNRI was an independent risk factor for poor OS (hazard ratio (HR) = 3.22; 95% confidence interval (CI), 1.37-8.23; p = 0.0068) and DFS (HR = 2.32; 95%CI = 1.15-4.79; p = 0.018). Although use of adjuvant therapy has no impact on prognosis (OS: p = 0.26, DFS: p = 0.29), low GNRI showed shorter OS and DFS in patients with pathological lymph node metastasis [ypN(+)] (OS: p = 0.033, DFS: p = 0.032, log-rank test). CONCLUSIONS: GNRI is a useful marker for LARC patients diagnosed with clinical lymph node metastasis and treated by preoperative CRT followed by curative surgery. GNRI is a useful tool to identify high risk of recurrence for improving the survival in LARC patients.


Assuntos
Recidiva Local de Neoplasia , Neoplasias Retais , Idoso , Quimiorradioterapia , Humanos , Recidiva Local de Neoplasia/terapia , Prognóstico , Neoplasias Retais/tratamento farmacológico , Estudos Retrospectivos
5.
Surg Today ; 51(5): 745-755, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33130991

RESUMO

PURPOSE: We recently revealed the preoperative lymphocyte C-reactive protein ratio (LCR) to be a new marker for predicting various outcomes in malignancies. The aim of our present study was to clarify the potential utility of the preoperative LCR for predicting the perioperative risk and oncological outcome in esophageal cancer patients. METHODS: We analyzed the preoperative LCR from 153 esophageal cancer patients to clarify its clinical relevance. RESULTS: The preoperative LCR was significantly decreased in a stage-dependent manner, and a decreased preoperative LCR was significantly associated with the occurrence of postoperative surgical site infection. Esophageal cancer patients with a low LCR showed a poor outcome in both the overall survival and disease-free survival compared with those who had a high LCR. Multivariate analyses showed that a decreased LCR was an independent prognostic factor for both a poor overall survival and disease-free survival. A decreased preoperative LCR was an independent predictive factor for postoperative surgical site infection and significantly correlated with nutritional and inflammatory indicators. In addition, the LCR was useful for identifying esophageal cancer patients likely to have a poor outcome among patients with and without neoadjuvant chemotherapy. CONCLUSIONS: Assessing the preoperative LCR might help physicians identify populations at high risk for perioperative complication and oncological outcomes, and determine individualized perioperative therapeutic strategies.


Assuntos
Proteína C-Reativa/metabolismo , Neoplasias Esofágicas/diagnóstico , Neoplasias Esofágicas/cirurgia , Biomarcadores/sangue , Intervalo Livre de Doença , Neoplasias Esofágicas/mortalidade , Feminino , Humanos , Inflamação , Linfócitos/metabolismo , Masculino , Estado Nutricional , Complicações Pós-Operatórias/diagnóstico , Valor Preditivo dos Testes , Período Pré-Operatório , Risco , Infecção da Ferida Cirúrgica/diagnóstico , Resultado do Tratamento
6.
Esophagus ; 18(2): 228-238, 2021 04.
Artigo em Inglês | MEDLINE | ID: mdl-32743739

RESUMO

BACKGROUND: Recurrent laryngeal nerve paralysis (RLNP) after thoracoscopic esophagectomy for esophageal cancer (EC) is known to be a major complication leading to poor quality of life. RLNP is mainly associated with surgical procedures performed near the RLN. Therefore, with focus on the region of the RLN, we used preoperative computed tomography to investigate the risk factors of RLNP in patients with EC undergoing thoracoscopic esophagectomy. METHODS: We retrospectively examined 77 EC patients who underwent thoracoscopic esophagectomy in the prone position at our department between January 2010 and December 2018. Bilateral cross-sectional areas (mm2) of the fatty tissue around the RLN at the level of the lower pole of the thyroid gland were measured on preoperative axial computed tomography (CT) images. Univariate and multivariate logistic regression analysis was used to evaluate the association between the incidence of RLNP and patient clinical factors, including the cross-sectional areas. RESULTS: RLNP occurred in 24 of 77 patients (31.2%). The incidence of RLNP was significantly more frequent on the left side than on the right. (26% vs. 5.2%, respectively). Univariate analysis identified the following left RLNP risk factors: intrathoracic operative time (> 235 min), and area around the RLN (> 174.3 mm2). Multivariate analysis found that the area around the RLN was an independent risk factor of left RLNP. CONCLUSION: An increased area around the RLN measured on an axial CT view at the level of the lower pole of the thyroid gland was a risk factor of RLNP in EC patients undergoing thoracoscopic esophagectomy in the prone position.


Assuntos
Neoplasias Esofágicas , Paralisia das Pregas Vocais , Neoplasias Esofágicas/complicações , Esofagectomia/efeitos adversos , Esofagectomia/métodos , Humanos , Decúbito Ventral , Qualidade de Vida , Nervo Laríngeo Recorrente/cirurgia , Estudos Retrospectivos , Tomografia/efeitos adversos , Tomografia Computadorizada por Raios X , Paralisia das Pregas Vocais/epidemiologia , Paralisia das Pregas Vocais/etiologia
7.
Gut ; 66(4): 654-665, 2017 04.
Artigo em Inglês | MEDLINE | ID: mdl-26701878

RESUMO

BACKGROUND AND AIMS: Distant metastasis is a major cause of deaths in patients with colorectal cancer (CRC), which is partly due to lack of robust metastasis-predictive biomarkers. In spite of the important function of microRNA (miR)-203 in cancer metastasis, its clinical significance in CRC metastasis remains unknown. Here, we evaluated the potential role of serum miR-203 as a non-invasive biomarker for CRC metastasis. METHODS: MiR-203 expression was quantified by quantitative reverse-transcription PCR in 58 pairs of primary CRC (pCRC) and corresponding matched liver metastasis (LM), as well as 186 serum and 154 matched tissue specimens from patients with CRC in cohort 1. Next, we performed validation of miR-203 levels in serum from 144 patients with CRC in an independent cohort (cohort 2). Mouse models of CRC-associated metastases were established to identify the source of circulating miR-203. Expression patterns of miR-203 in tissues were determined by in situ hybridisation. RESULTS: MiR-203 expression was significantly upregulated in LM compared with matched pCRC tissues. Serum miR-203 levels were significantly upregulated in a stage-dependent manner, and high miR-203 expression was associated with poor survival in patients with CRC in both patient cohorts. Increased miR-203 levels in serum indicated high risk for poor prognosis (HR=2.1), as well as metastasis to lymph nodes (OR=2.5), liver (OR=6.2), peritoneum (OR=7.2) and distant organs (OR=4.4). Serum miR-203 levels were significantly higher in animals with liver or systemic metastasis compared with controls. CONCLUSIONS: High levels of serum miR-203 associate with poor survival and metastasis, suggesting it to be a promising non-invasive prognostic and metastasis-predictive biomarker in patients with CRC.


Assuntos
Neoplasias Colorretais/sangue , Neoplasias Colorretais/patologia , Neoplasias Hepáticas/sangue , Neoplasias Hepáticas/secundário , MicroRNAs/sangue , Neoplasias Peritoneais/sangue , Neoplasias Peritoneais/secundário , Idoso , Animais , Biomarcadores Tumorais/sangue , Neoplasias Colorretais/genética , Feminino , Expressão Gênica , Humanos , Neoplasias Hepáticas/genética , Metástase Linfática , Masculino , Camundongos , Camundongos Endogâmicos BALB C , Camundongos Nus , MicroRNAs/genética , Estadiamento de Neoplasias , Neoplasias Peritoneais/genética , Valor Preditivo dos Testes , Prognóstico , Taxa de Sobrevida , Regulação para Cima
8.
Gastroenterology ; 150(4): 944-55, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26752111

RESUMO

BACKGROUND & AIMS: Molecular events that lead to recurrence and/or metastasis after curative treatment of patients with colorectal cancers (CRCs) are poorly understood. Patients with stage II or III primary CRC with elevated microsatellite alterations at selected tetranucleotide repeats and low levels of microsatellite instability (E/L) are more likely to have disease recurrence after treatment. Hypoxia and/or inflammation not only promote metastasis, but also induce elevated microsatellite alterations at selected tetranucleotide repeats by causing deficiency of MSH3 in the cancer cell nucleus. We aimed to identify genetic alterations associated with metastasis of primary colorectal tumors to liver and to determine their effects on survival. METHODS: We obtained 4 sets of primary colorectal tumors and matched liver metastases from hospitals in Korea and Japan. Intragenic microsatellites with large repeats at 141 loci were examined for frame-shift mutations and/or loss of heterozygosity (LOH) as possible consequences of MSH3 deficiency. Highly altered loci were examined for association with E/L in liver metastases. We analyzed data from 156 of the patients with stage II or III primary colorectal tumors to determine outcomes and whether altered loci were associated with E/L. RESULTS: LOH at several loci at chromosome 9p24.2 (9p24.2-LOH) was associated with E/L in liver metastases (odds ratio = 10.5; 95% confidence interval: 2.69-40.80; P = .0007). We found no significant difference in the frequency of E/L, 9p24.2-LOH, mutations in KRAS or BRAF, or the combination of E/L and 9p24.2-LOH, between primary colorectal tumors and their matched metastases. Patients with stage II or III colorectal tumors with E/L and 9p24.2-LOH had increased survival after CRC recurrence (hazard ratio = 0.25; 95% CI: 0.12-0.50; P = .0001), compared with patients without with E/L and 9p24.2-LOH. E/L with 9p24.2-LOH appeared to be an independent prognostic factor for overall survival of patients with stage III CRC (hazard ratio = 0.06; 95% CI: 0.01-0.57; P = .01). CONCLUSIONS: E/L with 9p24-LOH appears to be a biomarker for less aggressive metastasis from stage III primary colorectal tumors.


Assuntos
Biomarcadores Tumorais/genética , Aberrações Cromossômicas , Cromossomos Humanos Par 9 , Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , Neoplasias Hepáticas/genética , Neoplasias Hepáticas/secundário , Perda de Heterozigosidade , Repetições de Microssatélites , Distribuição de Qui-Quadrado , Neoplasias Colorretais/mortalidade , Neoplasias Colorretais/cirurgia , Progressão da Doença , Intervalo Livre de Doença , Feminino , Predisposição Genética para Doença , Humanos , Japão , Estimativa de Kaplan-Meier , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/cirurgia , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Estadiamento de Neoplasias , Razão de Chances , Fenótipo , Modelos de Riscos Proporcionais , Proteínas Proto-Oncogênicas B-raf/genética , Proteínas Proto-Oncogênicas p21(ras)/genética , República da Coreia , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento
9.
Int J Clin Oncol ; 22(4): 758-766, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28299463

RESUMO

BACKGROUND: Although patients with metastatic colorectal cancer (CRC) are often unable to undergo treatment after resection of primary tumors, identifying such patients before surgery is not easy. In this study, we evaluated the association among clinicopathological findings, survival outcomes, and ability to undergo multimodal therapy after primary tumor resection in patients with Stage IV CRC. METHODS: We collected clinicopathological findings and preoperative laboratory data, including carcinoembryonic antigen (CEA) and systemic inflammatory response markers for 92 patients who were treated for Stage IV CRC between 2005 and 2014. We used multivariate analysis on factors that affect prognosis and ability to undergo postoperative treatment. RESULTS: Postoperative multimodal therapy improved overall survival (OS) significantly. Among serum markers, elevated CEA, neutrophil-to-lymphocyte ratio, and modified Glasgow prognosis score (mGPS) were significant indicators of shorter OS. In multivariate analysis, low performance status (P = 0.003), undifferentiated histology type (P = 0.019), and elevated mGPS (P = 0.042) were independent predictors of worse prognosis; and older age (P = 0.016), right-sided colon cancer (P = 0.043), and elevated mGPS (P = 0.031) were independent risk factors for difficulty of introducing postoperative multimodal therapy. CONCLUSIONS: Preoperative mGPS is a useful objective indicator for CRC patients with multiple metastases who are able to undergo primary site resection followed by postoperative multimodal therapy.


Assuntos
Neoplasias Colorretais/cirurgia , Neoplasias Colorretais/terapia , Inflamação/metabolismo , Idoso , Idoso de 80 Anos ou mais , Biomarcadores/análise , Antígeno Carcinoembrionário/sangue , Neoplasias Colorretais/mortalidade , Neoplasias Colorretais/patologia , Terapia Combinada , Feminino , Humanos , Inflamação/complicações , Linfócitos/patologia , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Neutrófilos/patologia , Prognóstico , Estudos Retrospectivos , Fatores de Risco , Análise de Sobrevida , Resultado do Tratamento
10.
Gan To Kagaku Ryoho ; 44(12): 1553-1555, 2017 Nov.
Artigo em Japonês | MEDLINE | ID: mdl-29394699

RESUMO

INTRODUCTION: We report a case ofsuperf icial non-ampullary duodenal tumor(SNADT)resected by laparoscopic and endoscopic cooperative surgery(LECS)technique. CASE PRESENTATION: A 55-year-old man underwent screening esophagogastroduodenoscopy. Endoscopy revealed 0- II a+ II c mucosal lesion measuring 15mm in size located the portion ofduodenum contralateral to the ampulla ofVater. During observation, irregularity in depressed mucosa was observed and malignant alteration was suspected. So, we performed local resection with LECS as diagnostic therapy. During operation, endoscopic mucosal resection(ESD)was performed first. Next, duodenum was mobilized laparoscopically and the floor of the ulcer was closed with endoscopy guided laparoscopic suturing technique. Histopathology revealed tubular adenoma and the resection margin was negative. DISCUSSION: SNADT is rare condition and therapeutic strategy for SNADT has not established. Further study are needed.


Assuntos
Adenoma/cirurgia , Neoplasias Duodenais/cirurgia , Duodenoscopia/métodos , Laparoscopia/métodos , Neoplasias Duodenais/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
11.
Oncology ; 90(4): 221-31, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26999740

RESUMO

OBJECTIVES: MicroRNA (miR)-503 is downregulated in several cancers and plays a tumor-suppressive role in carcinogenesis. However, the miR-503 expression pattern, its clinical significance and its molecular mechanism in colorectal cancer (CRC) have not been investigated. METHODS: We analyzed miR-503 expression in normal mucosa (n = 20), adenoma (n = 27) and CRC (n = 20). We quantified miR-503 expression in an independent cohort (n = 191) and investigated the clinical significance of miR-503 in CRC. CRC cell lines were transfected with anti-miR-503 to assess its function and target gene. RESULTS: miR-503 expression increased according to the adenoma-carcinoma sequence. High miR-503 expression was significantly associated with large tumor size, serosal invasion, lymphatic and venous invasion as well as lymph node metastasis. CRC patients with high miR-503 expression had significantly earlier relapse and poorer prognosis than those with low expression. miR-503 was an independent recurrence marker in stage I/II CRC. In vitro, attenuated miR-503 expression resulted in inhibition of proliferation, invasion and migration and acquisition of anoikis of CRC cells. The putative target gene (calcium-sensing receptor) was significantly upregulated after miR-503 attenuation. CONCLUSIONS: miR-503 acts as an 'onco-miR' in CRC. High miR-503 expression is associated with early recurrence and poor prognosis in CRC.


Assuntos
Adenoma/genética , Biomarcadores Tumorais/genética , Neoplasias Colorretais/genética , MicroRNAs/genética , Recidiva Local de Neoplasia/genética , Idoso , Anoikis/genética , Células CACO-2 , Linhagem Celular Tumoral , Movimento Celular/genética , Proliferação de Células/genética , Neoplasias Colorretais/mortalidade , Neoplasias Colorretais/patologia , Progressão da Doença , Feminino , Regulação Neoplásica da Expressão Gênica , Células HT29 , Humanos , Mucosa Intestinal/citologia , Masculino , Invasividade Neoplásica/genética , Recidiva Local de Neoplasia/patologia , Prognóstico
12.
Gastric Cancer ; 19(3): 744-53, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-26233325

RESUMO

BACKGROUND: Metastasis is a major cause of death in patients with gastric cancer (GC). MicroRNAs (miRNAs) relating to the epithelial-mesenchymal transition (EMT) control GC progression and metastasis. The aim of this study was to evaluate serum EMT-associated miRNAs for metastatic and prognostic noninvasive biomarkers in GC. METHODS: In the first step of this study (preliminary experiments), we selected candidate miRNAs associated with metastasis by analyzing the expression of the miR-200 family (miR-200a, miR-200b, miR-200c, miR-141, and miR-429) and miR-203 in serum samples from stage I (n = 12) and stage IV (n = 12) GC patients. The second phase involved the independent validation of candidate miRNAs in serum specimens from 130 patients with GC and 22 controls. RESULTS: Based on the preliminary experiments, miR-203 was selected as the candidate serum miRNA that was most closely associated with metastasis. Validation analysis revealed that serum miR-203 levels were significantly lower in stage IV than stage I-III GC patients. Serum miR-203 expression was significantly lower in GC patients with a higher T stage, vessel invasion, and lymph node, peritoneal, and distant metastases. Low expression of serum miR-203 was significantly associated with poor disease-free and overall survival. Multivariate analysis revealed that low serum miR-203 expression was an independent predictive marker for lymph node, peritoneal, and distant metastases and a poor prognosis in patients with GC. CONCLUSIONS: Serum miR-203 has the potential to serve as a noninvasive biomarker for prognosis and to predict metastasis in patients with GC.


Assuntos
Adenocarcinoma/genética , Biomarcadores Tumorais/genética , Neoplasias Hepáticas/genética , MicroRNAs/genética , Neoplasias Peritoneais/genética , Neoplasias Gástricas/genética , Adenocarcinoma/secundário , Adenocarcinoma/cirurgia , Idoso , Biomarcadores Tumorais/sangue , Estudos de Casos e Controles , Progressão da Doença , Feminino , Seguimentos , Gastrectomia , Humanos , Neoplasias Hepáticas/secundário , Neoplasias Hepáticas/cirurgia , Metástase Linfática , Masculino , MicroRNAs/sangue , Invasividade Neoplásica , Estadiamento de Neoplasias , Neoplasias Peritoneais/secundário , Neoplasias Peritoneais/cirurgia , Prognóstico , RNA Mensageiro/genética , Reação em Cadeia da Polimerase em Tempo Real , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Neoplasias Gástricas/patologia , Neoplasias Gástricas/cirurgia , Taxa de Sobrevida
13.
Int J Clin Oncol ; 21(2): 350-358, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26370256

RESUMO

BACKGROUND: CD26 is a transmembrane glycoprotein whose role in various types of malignancies, along with the potential therapeutic and diagnostic targets, has been evaluated. Preoperative chemoradiotherapy (CRT) is an effective tool for local control of rectal cancer, but the rate of disease recurrence remains high. The aim of this study was to clarify the association between CD26 expression and rectal cancer after preoperative CRT. METHODS: A total of 85 patients with rectal cancer who had undergone preoperative CRT were enrolled in this study. We investigated CD26 expression in residual tumors and the surrounding stromal tissue using immunohistochemistry. Additionally, stromal CD26 gene expression was assessed by real-time quantitative polymerase chain reaction. RESULTS: Patients with high CD26 expression in cancer tissue more frequently had serosal invasion, vascular invasion, and a poor pathological response. High expression of CD26 in the tumor stroma was significantly correlated with histology and tumor recurrence. High CD26 expression in the stroma, but not the tumor itself, was significantly correlated with a poor prognosis. Patients expressing CD26 in the tumor stroma, based on transcriptional analysis, also had a significantly poorer prognosis than those without the expression. In multivariate analysis, lymph node metastasis and high stromal CD26 expression were identified as independent prognostic factors in patients with rectal cancer after neoadjuvant CRT. CONCLUSION: Stromal CD26 expression after preoperative CRT was significantly associated with tumor recurrence and prognosis in rectal cancer patients. Our data suggest that stromal CD26 plays an important role and is a potential therapeutic target in tumor relapse.


Assuntos
Biomarcadores Tumorais/metabolismo , Quimiorradioterapia , Dipeptidil Peptidase 4/metabolismo , Recidiva Local de Neoplasia/patologia , Neoplasia Residual/patologia , Neoplasias Retais/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/genética , Dipeptidil Peptidase 4/genética , Feminino , Humanos , Imuno-Histoquímica , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante , Recidiva Local de Neoplasia/metabolismo , Recidiva Local de Neoplasia/terapia , Estadiamento de Neoplasias , Neoplasia Residual/metabolismo , Neoplasia Residual/terapia , Prognóstico , Neoplasias Retais/metabolismo , Neoplasias Retais/terapia , Células Estromais/metabolismo , Células Estromais/patologia , Taxa de Sobrevida
14.
Int J Clin Oncol ; 21(5): 946-952, 2016 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-26919982

RESUMO

BACKGROUND: Programmed cell death ligand 1 (PD-L1) regulates immune responses through interaction with its receptor. PD-L1 is not only a predictor of poor prognosis but also a new therapeutic target in several malignancies. Neoadjuvant chemoradiotherapy (CRT) is an effective tool for local control of rectal cancer, but the disease recurrence rate remains high. The aim of this study was to retrospectively evaluate the correlation between PD-L1 expression and clinicopathological variables in rectal cancer after neoadjuvant CRT. MATERIALS AND METHODS: A total of 90 rectal cancer patients who underwent neoadjuvant CRT were enrolled in this study. We evaluated PD-L1 expression using immunohistochemistry. Moreover, we investigated the correlation between PD-L1 expression and tumor-infiltrating T cells, and between CD8- and Foxp3-positive cells. RESULTS: Patients with high PD-L1 expression more frequently had vascular invasion and tumor recurrence compared to patients with low PD-L1 expression (P = 0.0225 and P = 0.0051). High PD-L1 expression was significantly associated with poor recurrence-free and overall survival (P = 0.0027 and P = 0.0357). Multivariate analysis revealed lymph node metastasis and high PD-L1 expression as independent risk factors for tumor recurrence (P = 0.0102 and P = 0.0374). Numbers of infiltrating CD8-positive cells in patients with high PD-L1 expression were significantly lower than in patients with low PD-L1 expression (P = 0.0322). CONCLUSION: Our data suggest that inhibition of PD-L1 may be a new immunotherapeutic strategy to reduce tumor recurrence and improve prognosis in patients with rectal cancer after neoadjuvant CRT.


Assuntos
Antígeno B7-H1/análise , Recidiva Local de Neoplasia/química , Neoplasias Retais/química , Neoplasias Retais/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/análise , Linfócitos T CD8-Positivos/imunologia , Morte Celular , Quimiorradioterapia , Intervalo Livre de Doença , Feminino , Fatores de Transcrição Forkhead/análise , Humanos , Metástase Linfática , Contagem de Linfócitos , Linfócitos do Interstício Tumoral/química , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante , Invasividade Neoplásica , Prognóstico , Neoplasias Retais/terapia , Estudos Retrospectivos , Taxa de Sobrevida
15.
Carcinogenesis ; 36(3): 346-54, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25568185

RESUMO

Rac GTPase-activating protein (RacGAP) 1 plays a key role in controlling various cellular phenomena including cytokinesis, transformation, invasive migration and metastasis. This study investigated the function and clinical significance of RacGAP1 expression in colorectal cancer (CRC). The intrinsic functions of RacGAP1 in CRC cells were analyzed using small interfering RNA (siRNA). We analyzed RacGAP1 mRNA expression in surgical specimens from 193 CRC patients (Cohort 1) by real-time PCR. Finally, we validated RacGAP1 protein expression using formalin-fixed paraffin-embedded samples from 298 CRC patients (Cohort 2) by immunohistochemistry. Reduced RacGAP1 expression by siRNA in CRC cell lines showed significantly decreased cellular proliferation, migration and invasion. In Cohort 1, RacGAP1 expression in CRC was significantly higher than in adjacent normal mucosa and increased according to tumor node metastasis stage progression. High RacGAP1 expression in tumors was significantly associated with progression and prognosis. In Cohort 2, RacGAP1 protein was overexpressed mainly in the nuclei of CRC cells; however, its expression was scarcely observed in normal colorectal mucosa. RacGAP1 protein expression was significantly higher in CRC patients with higher T stage, vessel invasion and lymph node and distant metastasis. Increased expression of RacGAP1 protein was significantly associated with poor disease-free and overall survival. Multivariate analyses revealed that high RacGAP1 expression was an independent predictive marker for lymph node metastasis, recurrence and poor prognosis in CRC. Our data provide novel evidence for the biological and clinical significance of RacGAP1 as a potential biomarker for identifying patients with lymph node metastasis and poor prognosis in CRC.


Assuntos
Biomarcadores Tumorais/genética , Neoplasias Colorretais/genética , Neoplasias Colorretais/patologia , Proteínas Ativadoras de GTPase/genética , Metástase Linfática/genética , Idoso , Linhagem Celular Tumoral , Movimento Celular/genética , Proliferação de Células/genética , Estudos de Coortes , Neoplasias Colorretais/mortalidade , Neoplasias Colorretais/cirurgia , Feminino , Proteínas Ativadoras de GTPase/metabolismo , Regulação Neoplásica da Expressão Gênica , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/genética , Prognóstico , Interferência de RNA , Reprodutibilidade dos Testes
16.
Carcinogenesis ; 36(12): 1474-83, 2015 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-26420253

RESUMO

Chronic inflammation of gastric mucosa by Helicobacter pylori infection can initiate gastric carcinogenesis. As angiopoietin-like protein 2 (ANGPTL2) mediates inflammation and inflammation-associated carcinogenesis, we investigated the functional and clinical significance of ANGPTL2 in human gastric cancer (GC). SiRNA knockdown studies were performed for the functional assessment of ANGPTL2 in GC cell lines. ANGPTL2 expression was evaluated immunohistochemically in 192 tissue specimens from GC patients. In addition, we screened serum ANGPTL2 levels from 32 GC patients and 23 healthy controls; and validated these results in 194 serum samples from GC patients and 45 healthy controls by ELISA. ANGPTL2 knockdown caused anoikis and inhibited proliferation, invasion and migration in GC cells. ANGPTL2 expression was upregulated in GC tissues compared to normal gastric mucosa; and high ANGPTL2 expression was significantly associated with tumor progression, early recurrence (P = 0.003) and poor prognosis (P = 0.007). Serum ANGPTL2 in GC patients was significantly higher than for healthy controls (P < 0.05), and accurately distinguished GC patients from healthy control (AUC = 0.865). The validation step confirmed significantly higher serum ANGPTL2 levels in GC patients than healthy controls (P < 0.0001). Receiver operating characteristic curves yielded robust AUC value (0.831) accompanied by high sensitivity (73.0%) and specificity (82.2%) in distinguishing GC patients from healthy controls. High serum ANGPTL2, rather than its expression in matched tissues, was significantly associated with tumor progression, and emerged as an independent marker for recurrence (HR: 5.05, P = 0.0004) and prognosis (HR: 3.6, P = 0.01). Serum ANGPTL2 expression is a potential noninvasive biomarker for diagnosis, early recurrence and prognosis of GC patients.


Assuntos
Angiopoietinas/sangue , Biomarcadores Tumorais/sangue , Recidiva Local de Neoplasia/sangue , Neoplasias Gástricas/sangue , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Proteína 2 Semelhante a Angiopoietina , Proteínas Semelhantes a Angiopoietina , Angiopoietinas/genética , Anoikis , Área Sob a Curva , Estudos de Casos e Controles , Linhagem Celular Tumoral , Proliferação de Células , Intervalo Livre de Doença , Detecção Precoce de Câncer , Feminino , Expressão Gênica , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Recidiva Local de Neoplasia/diagnóstico , Prognóstico , Modelos de Riscos Proporcionais , Curva ROC , Neoplasias Gástricas/diagnóstico , Neoplasias Gástricas/mortalidade , Adulto Jovem
17.
Asian J Endosc Surg ; 17(1): e13249, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37845781

RESUMO

Aortoesophageal fistula (AEF) is a rare but life-threatening pathology. We report a case of a primary AEF that was successfully managed with temporary thoracic endovascular aortic repair (TEVAR) and esophagectomy with video-assisted thoracoscopic surgery. A 73-year-old man was transferred to the emergency department with a complaint of hematemesis. A computed tomography scan identified an AEF due to aortic aneurysm. We placed a stent using TEVAR for the purpose of hemodynamic stasis, and the operation was performed 23 h after admission. Right video-assisted thoracoscopic esophagectomy (VATS-E) was chosen, and a cervical esophagostomy and a feeding gastrostomy tube was constructed. Infection had been effectively controlled postoperatively. Four months after the first operation, we performed esophageal reconstruction. At the 70-month follow-up examination, the patient had no signs of mediastinitis. VATS-E immediately after hemostabilization by TEVAR is useful management for primary AEF.


Assuntos
Doenças da Aorta , Implante de Prótese Vascular , Fístula Esofágica , Masculino , Humanos , Idoso , Esofagectomia , Correção Endovascular de Aneurisma , Implante de Prótese Vascular/efeitos adversos , Doenças da Aorta/diagnóstico por imagem , Doenças da Aorta/etiologia , Doenças da Aorta/cirurgia , Fístula Esofágica/diagnóstico por imagem , Fístula Esofágica/etiologia , Fístula Esofágica/cirurgia
18.
J Gastrointest Surg ; 28(7): 1045-1050, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38641163

RESUMO

BACKGROUND: Gastric cancer (GC) is a major leading cause of cancer-related death worldwide. Systemic inflammation and the nutrition-based score are feasible prognostic markers for malignancies. Emerging evidence has also revealed the C-reactive protein-albumin-lymphocyte (CALLY) index to be a prognostic marker for several cancer types. However, its clinical significance to predict surgical and oncologic outcomes of patients with GC remains unclear. METHODS: We assessed the preoperative CALLY index in 426 patients with GC who received gastrectomy. RESULTS: A low preoperative CALLY index was significantly correlated to all well-established clinicopathologic factors for disease development, including an advanced T stage, the presence of venous invasion, lymphatic vessel invasion, lymph node metastasis, distant metastasis, and an advanced TNM stage. A low preoperative CALLY index was also an independent prognostic factor for overall survival (hazard ratio [HR], 2.64; 95 % CI, 1.66-4.2; P < .0001) and disease-free survival (HR, 1.76; 95 % CI, 1.01-3.05; P = .045). In addition, a low preoperative CALLY index was an independent predictive factor for postoperative surgical site infection (odds ratio, 2.64; 95 % CI, 1.42-4.89; P = .002). CONCLUSION: The preoperative CALLY index is valuable for perioperative and oncologic management of patients with GC.


Assuntos
Proteína C-Reativa , Estudos de Viabilidade , Gastrectomia , Neoplasias Gástricas , Humanos , Neoplasias Gástricas/cirurgia , Neoplasias Gástricas/patologia , Neoplasias Gástricas/mortalidade , Neoplasias Gástricas/sangue , Masculino , Feminino , Proteína C-Reativa/análise , Proteína C-Reativa/metabolismo , Pessoa de Meia-Idade , Gastrectomia/métodos , Idoso , Prognóstico , Albumina Sérica/análise , Albumina Sérica/metabolismo , Estudos Retrospectivos , Adulto , Estadiamento de Neoplasias , Intervalo Livre de Doença , Linfócitos , Metástase Linfática , Contagem de Linfócitos , Valor Preditivo dos Testes , Idoso de 80 Anos ou mais , Período Pré-Operatório , Invasividade Neoplásica , Taxa de Sobrevida , Resultado do Tratamento
19.
Surg Oncol ; 53: 102044, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38335851

RESUMO

PURPOSE: The C-reactive protein-albumin-lymphocyte (CALLY) index is a novel inflammatory nutritional biomarker. This study aimed to investigate the potential clinical significance and oncological prognostic role of the preoperative CALLY index in patients with esophageal cancer. METHODS: We analyzed the preoperative CALLY index in 146 patients with esophageal cancer. The CALLY index and clinicopathological variables were analyzed by the Mann-Whitney U test, and associations between the CALLY index and survival outcomes were analyzed by Kaplan-Meier analysis and log-rank tests. Univariate and multivariate analyses of prognostic variables were conducted using Cox proportional hazards regression. RESULTS: A lower preoperative CALLY index was significantly correlated with patient age, advanced T stage, presence of lymph node metastasis, neoadjuvant therapy, lymphatic invasion, and advanced stage classification. The preoperative CALLY index decreased significantly in a stage-dependent manner. Patients with esophageal cancer with a low CALLY index had poorer overall survival, disease-free survival than those with a high CALLY index. Multivariate analysis showed that a low CALLY index was an independent prognostic factor for overall survival, disease-free survival and an independent predictor of postoperative surgical site infection. CONCLUSIONS: Preoperative CALLY index is a useful marker to guide the perioperative and postoperative management of patients with esophageal cancer.


Assuntos
Proteína C-Reativa , Neoplasias Esofágicas , Humanos , Proteína C-Reativa/análise , Neoplasias Esofágicas/patologia , Prognóstico , Linfócitos/patologia , Biomarcadores , Estudos Retrospectivos
20.
Am Surg ; 90(6): 1552-1560, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38557149

RESUMO

BACKGROUND: Postoperative pancreas-related complications (PPRCs) are common after laparoscopic gastrectomy (LG) in patients with gastric cancer. We estimated the anatomical location of the pancreas on a computed tomography (CT) image and investigated its impact on the incidence of PPRCs after LG. METHODS: We retrospectively reviewed the preoperative CT images of 203 patients who underwent LG for gastric cancer between January 2010 and December 2017. From these images, we measured the gap between the upper edge of the pancreatic body and the root of the common hepatic artery. We evaluated the potential relationship between PPRCs and the gap between pancreas and common hepatic artery (GPC) status using an analysis based on the median cutoff value and assessed the impact of GPC status on PPRC incidence. We performed univariate and multivariate analyses to identify predictive factors for PPRC. RESULT: Postoperative pancreas-related complications occurred in 11 patients (5.4%). The median of the optimal cutoff GPC value for predicting PPRC was 0 mm; therefore, we classified the GPC status into two groups: GPC plus group and GPC minus group. Univariate analysis revealed that sex (male), C-reactive protein (CRP) > .07 mg/dl, GPC plus, and visceral fat area (VFA) > 99 cm2 were associated with the development of PPRC. Multivariate analysis identified only GPC plus as independent predictor of PPRC (hazard ratio: 4.60 [95% confidence interval 1.11-31.15], P = .034). CONCLUSION: The GPC is a simple and reliable predictor of PPRC after LG. Surgeons should evaluate GPC status on preoperative CT images before proceeding with laparoscopic gastric cancer surgery.


Assuntos
Gastrectomia , Pâncreas , Complicações Pós-Operatórias , Neoplasias Gástricas , Tomografia Computadorizada por Raios X , Humanos , Masculino , Feminino , Gastrectomia/efeitos adversos , Estudos Retrospectivos , Pessoa de Meia-Idade , Complicações Pós-Operatórias/diagnóstico por imagem , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Idoso , Pâncreas/diagnóstico por imagem , Neoplasias Gástricas/cirurgia , Neoplasias Gástricas/diagnóstico por imagem , Laparoscopia/efeitos adversos , Adulto , Cuidados Pré-Operatórios/métodos , Valor Preditivo dos Testes , Incidência , Artéria Hepática/diagnóstico por imagem , Fatores de Risco , Pancreatopatias/cirurgia , Pancreatopatias/diagnóstico por imagem
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