crossing96/oncoscreening huggingface dataset:
Zinc replenishment reverses overexpression of the proinflammatory mediator S100A8 and esophageal preneoplasia in the rat.	BACKGROUND & AIMS: Zinc deficiency is implicated in the pathogenesis of human esophageal cancer. In the rat esophagus, it induces cell proliferation, modulates genetic expression, and enhances carcinogenesis. Zinc-replenishment reverses proliferation and inhibits carcinogenesis. The zinc-deficient rat model allows the identification of biological differences affected by zinc during early esophageal carcinogenesis. METHODS: We evaluated gene expression profiles of esophageal epithelia from zinc-deficient and replenished rats vs zinc-sufficient rats using microarray analysis. We characterized the role of the top-up-regulated gene S100A8 in esophageal hyperplasia/reversal and in chemically induced esophageal carcinogenesis in zinc-modulated animals by immunohistochemistry and real-time quantitative polymerase chain reaction. RESULTS: The hyperplastic-deficient esophagus has a distinct expression signature with the proinflammation genes S100 calcium binding protein A8 (S100A8) and A9 (S100A9) up-regulated 57-fold and 5-fold, respectively. Zinc replenishment rapidly restored to control levels the expression of S100A8/A9 and 27 other genes and reversed the hyperplastic phenotype. With its receptor for advanced glycation end products (RAGE), colocalization and overexpression of S100A8 protein occurred in the deficient esophagus that overexpressed nuclear factor kappaBeta p65 and cyclooxygenase-2 (COX-2) protein. Zinc replenishment, but not a COX-2 inhibitor, reduced the overexpression of these 4 proteins. Additionally, esophageal S100A8/A9 messenger RNA levels were associated directly with the diverse tumorigenic outcome in zinc-deficient and zinc-replenished rats. CONCLUSIONS: In vivo zinc regulates S100A8 expression and modulates the link between S100A8-RAGE interaction and downstream nuclear factor kappaBeta/COX-2 signaling. The finding that zinc regulates an inflammatory pathway in esophageal carcinogenesis may lead to prevention and therapy for this cancer.	esophagus
Transhiatal oesophagectomy: techniques, tips and outcomes.	AIM: To demonstrate our technique and valuable tips for transhiatal oesophagectomies. METHOD: 215 patients underwent transhiatal oesophagectomies in our unit between 2000 and 2006. RESULTS: In-hospital mortality was 0.9%. Anastomotic leak in 12 patients (5.6%). Chyle leak was seen in five patients and recurrent nerve neuropraxia in six patients. Iatrogenic splenectomy rate was 6%. The median operative time was 151 minutes (range 93-276 minutes). Overall median length of hospital stay was 15 days (range 8-95 days). The median survival for all patients undergoing transhiatal oesophagectomy for invasive malignancy was 42.9 months and the one-year and five-year survival were 81% and 48% respectively. CONCLUSION: This is a safe and oncologically sound procedure. We feel that the tips can be helpful for anyone performing this procedure.	esophagus
Oral abscess caused by Campylobacter rectus: case report and literature review.	Campylobacter rectus was isolated under routine anaerobic conditions (no additional hydrogen gas in the atmosphere) from an oral, nonperiodontal abscess from a patient with gastroesophageal adenocarcinoma. We report the first case of a palate abscess caused by C. rectus and review the literature and atmospheric requirements of this organism.	esophagus
[Clinical significance of chemotherapy and chemo-radiotherapy in patients with metastatic esophageal cancer].	PURPOSE: We investigated the clinical significance of chemo-radiotherapy (CRT) and chemotherapy (CT) in patients with primary metastatic esophageal cancer. PATIENTS AND METHODS: Twenty-six patients with esophageal cancer received CRT (n =21) or CT alone (n=5) as a first treatment for para-aortic lymph node and/or hematogenous metastases. The therapeutic effect, duration of treatment, changes in performance status before and after treatment, and survival were analyzed retrospectively. RESULTS: The median duration of treatment was 2.9 months for CRT and 2.3 months for CT. The response rate was 76% in patients who underwent CRT and 20% in patients who underwent CT. In 18 patients (69%), the level of performance status showed no change after treatment in comparison with that before treatment. The median survival time was 5.6 months after CRT and 5.8 months after CT (p=0.91). CONCLUSION: These results suggest that the majority of patients with extremely advanced esophageal cancer can tolerate CRT or CT well without compromising their performance status within their limited life expectancy.	esophagus
[Detection of human papillomavirus in tissues of esophageal carcinomas by polymerase chain reaction].	OBJECTIVE: To investigate the relationship between the human papillomavirus (HPV) and esophageal carcinomas. METHODS: We detected HPV DNA in 31 fresh tissue of esophageal carcinomas from Linzhou City, Henan Province, by PCR with the general primer set of GP5+/6+ for HPV L1 gene and type-specific primer sets for HPV16 and 18 as well. RESULTS: 29 from 31 esophageal carcinoma samples were HPV positive and the rate was 93.5%. Among the samples detected, 19 were HPV16E6 positive and rate was 61.3%, eight were HPV18 E6 positive and rate was 25.8%; our result also showed five were the multiple infection containing HPV16 and 18 as well and the rate was 71.0%. CONCLUSION: The high rate of HPV in the esophageal carcinoma samples suggested that HPV plays an etiologic role in the development of esophageal cancer in Linzhou City, Henan Province.	esophagus
Successful completion of neoadjuvant chemoradiation and surgical resection for esophageal cancer after perforation: a case for endoscopic stenting.	Iatrogenic esophageal perforation during endoscopy in the setting of malignancy is an uncommon but often devastating complication and presents a formidable challenge to the surgeon. We sought to determine the efficacy of a self-expanding plastic stent for esophageal perforation before neoadjuvant chemoradiation in a single patient. A 74-year-old woman with a T4N0 adenocarcinoma at the gastroesophageal junction was perforated during upper endoscopy. We elected to manage the perforation with a silicone-covered, self-expanding Polyflex stent. Subsequent studies revealed good positioning of the stent with exclusion of the perforation from the esophageal lumen. The patient subsequently underwent neoadjuvant chemoradiation therapy with cisplatin, 5-flourouracil, and external beam radiation (2640 Gy) followed by minimally invasive, hand-assisted transhiatal esophagogastrectomy. We describe the first case of endoscopic stenting for locally advanced, perforated esophageal cancer for the purposes of administering neoadjuvant chemoradiation as a bridge to definitive surgery. This patient was able to resume oral nutrition after stenting and during neoadjuvant therapy, experiencing no major complications from chemoradiation. Chemoradiation does not necessarily preclude the use of endoscopically placed covered plastic esophageal stents as a bridge to resection, even in the face of iatrogenic perforation.	esophagus
[Surgical treatment and prognosis in patients with squamous cell carcinoma of thoracic esophagus].	OBJECTIVE: To analyze the prognostic factors of thoracic esophageal squamous cell carcinoma (ESCC) after esophagectomy. METHODS: The clinicopathologic data of 716 patients with thoracic ESCC from January 1990 to December 1998 were analyzed retrospectively. There were 538 male and 178 female patients aged from 24 to 78 years old with a median of 57 years old. Cumulative survival rate was analyzed by the Kaplan-Meier method and compared by the Log-rank test. COX regression model was used for multivariate prognostic analysis. RESULTS: The overall 1-, 3-, 5- and 10-year survival rates were 82.9%, 44.3%, 34.2% and 25.7% respectively. The 5-year survival rates was 80.0%, 51.2%, 19.7% and 13.3% for stage I, stage IIA, stage IIB and stage III respectively. Of the 716 patients, 151 (21.1%) patients recurred, including 48 (84.2%) of stage IIA recurrence, 22 (91.7%) of stage IIB recurrence and 63 (90.0%) of stage III recurrence occurred within 3 years postoperatively. Univariate analysis revealed that the factors impacting the prognosis were gender, depth of invasion, lymph node metastasis, pathologic stage, number of lymph node metastatic field, differentiation, surgical margin and tumor relapse. Multivariate analysis showed that depth of invasion, lymph node metastasis, pathologic stage and tumor relapse were independently associated to poor prognosis. CONCLUSIONS: Depth of invasion, lymph node metastasis, pathologic stage and tumor relapse are the independent factors of ESCC. Surgery is still the primary treatment for stage I-IIA esophageal cancer; but it is suggested to adopt surgical treatment as primary modality combined with other therapies for stage IIB-III esophageal cancer.	esophagus
[Endoscopic mucosal resection of Abrikosoff's tumor of the esophagus].	Abrikosoff's tumor (AT), or granular cell tumor (GCT), is relatively rare in the gastrointestinal tract, where the most common site is the esophagus. This tumor is usually found incidentally when an upper gastrointestinal endoscopy is carried out for another reason. Endoscopically, GCT appears as a small, yellow and submucosal lesion covered by normal mucosa. Endoscopic ultrasonography shows a homogeneous hypoechoic lesion with well defined margins. The definitive diagnosis is histological. The origin of GCT is neurogenic and the tumor is composed of eosinophilic granular cytoplasm and PAS-positive cells, which show the S-100 protein on immunohistochemistry. Although GCT is usually clinically and histologically benign, some malignant cases have been reported. Consensus is lacking on the treatment and follow-up of this tumor. Currently, endoscopic mucosal resection is a safe and effective technique to treat submucosal esophageal lesions, allowing subsequent histologic analysis. We present three patients with esophageal CGT, who were definitively treated with endoscopic mucosal resection.	esophagus
Mammary serine protease inhibitor inhibits epithelial growth factor-induced epithelial-mesenchymal transition of esophageal carcinoma cells.	BACKGROUND: By using proteomic technology, the authors previously observed the substantial down-regulation of mammary serine protease inhibitor (maspin) in esophageal squamous cell carcinoma and metastases. In the current study, they examined the effects of maspin re-expression in a maspin-null esophageal cancer cell line EC109 and also investigated the underlying mechanism. METHODS: A cell line with stable maspin expression was established. An epithelial growth factor (EGF)-induced epithelial-mesenchymal transition (EMT) model was used to mimic some aspects of the metastatic process in vitro. The effects of maspin reintroduction on EGF-induced EMT and cell growth characteristics were evaluated. Comparative proteomic analysis of transfected cells versus parental cells was then performed to explore the potential mechanism. RESULTS: The introduction of maspin into EC109 cells was able to inhibit EGF-induced EMT and altered cell growth characteristics, including the serum dependence, proliferative response to EGF stimulation, and colony formation ability in soft agar, indicating a conversion from a malignant phenotype to a benign phenotype. Proteomic analysis revealed a significant down-regulation of a group of glycolytic enzymes in maspin-transfected cells. In addition, maspin-transfected cells expressed much lower levels of hypoxia-inducible factor 1alpha than parental cells or empty vector transfected cells. CONCLUSIONS: Maspin exhibited a metastasis-suppressive effect, which may be a consequence of the reversal of the malignant phenotype of EC109 cells. The switch of cellular metabolic phenotype to low glycolysis by the gain of maspin function may play a key role in the process. This finding provides additional evidence of the tumor metastasis-suppressive activity of maspin and may indicate a new direction for future studies of the mechanism of maspin.	esophagus
Esophageal squamous cell carcinoma with a solitary phalangeal metastasis.	A patient with pathologically proven acrometastasis of his left thumb presented 3 months after esophagectomy for esophageal squamous cell carcinoma. Interestingly, there was indeed a faint uptake in his left thumb that was initially considered an artifact in the whole body bone scan taken before esophagectomy. Physicians must be aware of the possibility of acrometastasis, even if there is no other concomitant metastatic area.	esophagus
Protein expression profiling in esophageal adenocarcinoma patients indicates association of heat-shock protein 27 expression and chemotherapy response.	PURPOSE: To identify pretherapeutic predictive biomarkers in tumor biopsies of patients with locally advanced esophageal adenocarcinomas treated with neoadjuvant chemotherapy, we used an explorative proteomic approach to correlate pretherapeutic protein expression profiles with tumor response to neoadjuvant chemotherapy. EXPERIMENTAL DESIGN: Thirty-four patients with locally advanced esophageal adenocarcinomas who received neoadjuvant platin/5-fluorouracil-based chemotherapy before surgical resection were enrolled in this study. Response to chemotherapy was determined (a) by the amount of decline of [18F]fluorodeoxyglucose tumor uptake 2 weeks after the start of chemotherapy measured by positron emission tomography and (b) by histopathologic evaluation of tumor regression after surgical resection. Explorative quantitative and qualitative protein expression analysis was done through a quantitative differential protein expression analysis that used dual-isotope radioactive labeling of protein extracts. Selected identified biomarkers were validated by immunohistochemistry and quantitative real time reverse transcription-PCR. RESULTS: Proteomic analysis revealed four cellular stress response-associated proteins [heat-shock protein (HSP) 27, HSP60, glucose-regulated protein (GRP) 94, GRP78] and a number of cytoskeletal proteins whose pretherapeutic abundance was significantly different (P < 0.001) between responders and nonresponders. Immunohistochemistry and gene expression analysis confirmed these data, showing a significant association between low HSP27 expression and nonresponse to neoadjuvant chemotherapy (P = 0.049 and P = 0.032, respectively). CONCLUSIONS: Albeit preliminary, our encouraging data suggest that protein expression profiling may distinguish cancers with a different response to chemotherapy. Our results suggest that response to chemotherapy may be related to a different activation of stress response and inflammatory biology in general. Moreover, the potential of HSPs and GRPs as biomarkers of chemotherapy response warrants further validation.	esophagus
Identification of human papillomavirus in esophageal squamous papillomas.	AIM: To investigate the presence of human papillomavirus (HPV) in esophageal squamous papilloma (ESP) and determine p16, p53 and Ki67 expression in a Mexican cohort. METHODS: Nineteen cases diagnosed as ESP, corresponding to 18 patients were reviewed; nineteen cases of normal esophageal mucosa were used as negative controls. HPV detection was performed by amplified chromogenic in situ hybridization (ACISH) using a wide spectrum-cocktail probe and PCR. RESULTS: The average age at presentation was 46.3 years (range 28-72 years). Patients included four (22.22%) males and 14 (77.77%) females. The most frequent location was upper third (11 cases), followed by middle third (3 cases) and unknown site (5 cases). Immunohistochemistry (IHC) revealed basal and focal p53 expression in 17 cases (89%); p16 was expressed in eight cases (42.10%) and the Ki67 index ranged from 10% to 30%. HPV was detected in 14 out of 16 cases (87.5%) by ACISH: Twelve showed diffuse nuclear patterns and two showed granular patterns. HPV DNA was identified by PCR in 12 out of 14 cases (85.7%). Low-risk HPV types were detected in the most of the cases. CONCLUSION: This study provides identification of HPV infection in almost 80% of ESP using either ACISH or PCR; overall, all of these lesions show low expression of cell-cycle markers. We suggest ACISH as an alternative diagnostic tool for HPV detection in ESP.	esophagus
Combination of microarray profiling and protein-protein interaction databases delineates the minimal discriminators as a metastasis network for esophageal squamous cell carcinoma.	Microarray profiling of 15 adjacent normal/tumor-matched esophageal squamous cell carcinoma (ESCC) specimens identified 40 up-regulated and 95 down-regulated genes. Verification of the microarray measurement by quantitative real-time reverse transcription PCR in the same set of samples as well as an additional 15 normal/tumor-matched samples revealed >95% consistency. These signatures can also be used to classify a recently reported ESCC microarray dataset. Moreover, these molecular signatures were used as templates to elucidate their corresponding protein-protein interaction (PPI) networks using the PPI databases, POINT and POINeT. As a result, 18 genes, of which six were not disclosed in the initial expression profile analysis, were found to be able to serve as the minimal discriminators for distinguishing ESCC tumors from normal specimens. Of these discriminators, ten (BGN, COL1A1, COL1A2, MMP9, CD44, FN1, TGFBI, PXN, SPARC and VWF) were associated with tumor metastasis and formed a highly interactive network with the first four molecules as 'hubs'. Our study not only reveals how novel insights can be obtained from gene expression profiling, but also highlights a group of highly interacting genes associated with metastasis in ESCC.	esophagus
[Clinicopathologic characteristics of adenocarcinoma in cardia according to Siewert classification].	BACKGROUND/AIMS: The aim of this study was to evaluate clinicopathologic differences between Type II and Type III groups that were classified by Siewert in cardia cancer. METHODS: A hundred forty-one patients who were diagnosed as gastric cardia cancer and underwent surgery between January 1990 and December 2006 by single surgeon at Department of Surgery, Yonsei University College of Medicine were included in this study. The Kaplan-Meier method and log rank test were used for survival analysis. RESULTS: Barrett's adenocarcinoma was recognized in two patients so called type I. There were significant differences between type II and III in aspect of depth of invasion, Lauren's classification, and the number of retrieved lymph nodes in which cancer infiltrated. In type III, prognostic factors affecting survival were depth of invasion and nodal status in contrast to the no demonstrable prognostic factors existing in type II. However, there were no differences in recurrence and survival between two groups. CONCLUSIONS: Several clinicopathologic differences exist between type II and III cardia cancer. In the future, further evaluation is needed regarding the classification and entities of the cardia cancer.	esophagus
Tumor-to-tumor metastasis: esophageal carcinoma metastatic to an intracranial paraganglioma.	Tumor-to-tumor metastasis (TTM) is a relatively rare but well-documented phenomenon. The authors report a unique case of esophageal carcinoma metastatic to an intracranial paraganglioma. A sellar and suprasellar tumor was found using MR imaging in an 81-year-old man who presented with a 3-week history of progressive headache and blurred vision. A subtotal excision of the tumor was achieved. Histopathological examination of the tumor disclosed a neoplasm with two distinct components: one showing the classic Zellballen pattern of a paraganglioma, the other exhibiting malignant features leading to the diagnosis of a poorly differentiated carcinoma metastatic to a sellar/suprasellar paraganglioma. The primary esophageal carcinoma was not uncovered until 2 months later, after the patient presented with upper gastrointestinal bleeding. The patient died 4 months after initial presentation. This case expands the spectrum of TTM, and emphasizes the importance of TTM in the practice of pathology.	esophagus
[Therapeutic strategies for advanced respectable esophageal cancer].	There are obvious differences in the clinical characteristics of patients with advanced respectable esophageal cancer between Japan and Western countries. In Japan, more than 90% of patients with esophageal cancer are histologically diagnosed with squamous cell carcinoma. On the other hand, the incidence of esophageal adenocarcinoma is rapidly increasing in the West. As a standard surgical approach, relatively invasive transthoracic extended esophagectomy has been established in Japan since the 1980s and has contributed to improved long-term survival of patients with squamous cell carcinoma. The current standard care for resectable stage II/III esophageal squamous cell carcinoma is neoadjuvant chemotherapy with 5-fluorouracil/cisplatin and radical esophagectomy based on the results of Japan Clinical Oncology Group trial 9907. In the West, relatively less invasive transhiatal esophagectomy with limited lymph node dissection has played a role in the multidisciplinary treatment of esophageal adenocarcinoma. Recently, a multimodal approach to esophageal cancer treatment including definitive chemoradiotherapy has been a focus of attention in both Japan and the West. For the further improvement of long-term survival of patients with esophageal cancer, the optimization of multimodal treatments and establishment of a global standard are essential.	esophagus
A clinicopathologic review of oesophageal carcinoma in Lagos.	BACKGROUND: Oesophageal cancer is the 6th most common cause of cancer death world wide. While the incidence is low in some parts of Africa such as Nigeria accounting for 0.4-0.6% of all malignant tumours, it is endemic in Transkei, in South Africa, which is regarded as an epicentre of the disease in Africa. OBJECTIVE: To document the age and sex distribution, clinical as well as histopathological characteristics of oesophageal carcinoma in Lagos, SW Nigeria, METHODS: The paraffin embedded blocks and slides as well as pathology reports of oesophageal carcinoma collected between 1995 and 2007 from Morbid Anatomy Department of the Lagos University Teaching Hospital and between 2002 and 2007 from two private histopathology laboratories in Lagos State were reviewed. The clinical data such as the age, sex, and clinical summary were extracted from demographic information in patients' case file. RESULTS: Twenty cases representing 2.8% of all gastrointestinal tumours were recorded. The mean age was 65.4 years (SD-12.3) with M:F ratio of 1:1. Squamous cell carcinoma predominated; 18 cases (90%); the remaining two cases (one of which showed evidence of Barrett's oesophagus) were adenocarcinoma (10%). All presented at advanced stage with dysphagia and weight loss with or without vomiting, regurgitation, and/or haematamesis. Two third had mid oesophageal fungating masses, the remaining were located in the lower third. Two cases had surgery, the rest were not fit for any intervention. CONCLUSION: Oesophageal cancer is not common in Lagos, Nigeria, majority are squamous cell carcinoma. Late presentation gives it a dismal outlook. Although the overall survival is poor, efforts at improving quality of life by palliative measures should be encouraged.	esophagus