Journal of the Pancreas最新文献

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The Role of Real Time Endoscopic Ultrasound Guided Elastography for Targeting EUS-FNA of Suspicious Pancreatic Masses: A Review of the Literature and A Single Center Experience. 实时内镜超声引导弹性成像在可疑胰腺肿块EUS-FNA定位中的作用:文献综述和单中心经验。
IF 0.2
Journal of the Pancreas Pub Date : 2016-09-01
Mikram Jafri, Amit H Sachdev, Lauren Khanna, Frank G Gress
{"title":"The Role of Real Time Endoscopic Ultrasound Guided Elastography for Targeting EUS-FNA of Suspicious Pancreatic Masses: A Review of the Literature and A Single Center Experience.","authors":"Mikram Jafri,&nbsp;Amit H Sachdev,&nbsp;Lauren Khanna,&nbsp;Frank G Gress","doi":"","DOIUrl":"","url":null,"abstract":"<p><strong>Background: </strong>Endoscopic ultrasound guided elastography is an imaging modality that can be used to evaluate tissue stiffness and to assess solid pancreatic lesions. It can also assist in optimizing the diagnostic yield of endoscopic ultrasound guided fine needle aspiration biopsies.</p><p><strong>Aims: </strong>To review the literature on solid pancreatic lesions, the use of EUS guided fine needle aspiration and endoscopic ultrasound guided elastography and to present a single center experience using elastography to direct fine needle aspiration biopsies of solid pancreatic lesions.</p><p><strong>Methods: </strong>We present a review of the literature and a single center experience describing the use of EUS guided elastography in directing fine needle aspiration biopsies of solid pancreatic lesions.</p><p><strong>Results: </strong>Thirteen male veterans with an average age of 62.3 (SD±11.8) years were enrolled in the study. The mean pancreatic mass size on EUS was 5.1×5.2 (SD±4.4×4.5) cm. A total of 13 lesions were identified during elastography. The lesions were most commonly found in the body (n=5), followed by multifocal lesions (n=4), pancreatic head (n=3) and tail (n=1). The seven concerning pancreatic lesions were stratified based on color pattern identified on EUS and EUS-elastography. Three lesions were homogenously blue, and four lesions were heterogeneously blue. The remaining six lesions which were less concerning were predominantly green. Of the three lesions, that were homogenously blue, two were diagnosed as adenocarcinoma (n=2) and chronic pancreatitis (n=1) respectively. Of the four heterogeneously blue lesions two were adenocarcinomas, while the other two represented a large B-cell lymphoma and chronic pancreatitis. Patients whose lesions were characterized as homogenous or heterogeneous green were benign and remained disease free after a median of two years of regular follow up.</p><p><strong>Limitations: </strong>Relatively small number of patients studied.</p><p><strong>Conclusions: </strong>In our single center experience we found that the use of real time endoscopic ultrasound guided elastography for targeting fine needle aspiration of suspicious pancreatic lesions may be beneficial as an adjunct modality to complement conventional EUS. Larger prospective studies need to be conducted to evaluate the utility of this modality in targeting pancreatic lesions.</p>","PeriodicalId":47280,"journal":{"name":"Journal of the Pancreas","volume":"17 5","pages":"516-524"},"PeriodicalIF":0.2,"publicationDate":"2016-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5595420/pdf/nihms883249.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35514309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hepatic Artery Chemotherapy for Advanced Adenocarcinoma of the Pancreas 晚期胰腺腺癌的肝动脉化疗
IF 0.2
Journal of the Pancreas Pub Date : 2016-05-20 DOI: 10.1200/JCO.2016.34.15_SUPPL.E15733
R. Levin, P. Sirijintakarn, J. Grutsch
{"title":"Hepatic Artery Chemotherapy for Advanced Adenocarcinoma of the Pancreas","authors":"R. Levin, P. Sirijintakarn, J. Grutsch","doi":"10.1200/JCO.2016.34.15_SUPPL.E15733","DOIUrl":"https://doi.org/10.1200/JCO.2016.34.15_SUPPL.E15733","url":null,"abstract":"Context Seventy patients with adenocarcinoma of the pancreas with liver metastases, received chemotherapy every four weeks and their outcomes are reported in this retrospective series. Objective Advanced adenocarcinoma of the pancreas has a poor prognosis with only 2% 5-year survival reported by SEER (Surveillance, Epidemiology and End Results of the NCI). Chemotherapy given as intra-arterial perfusions is more intense than intravenous chemotherapy. Responses in perfused tumor is expected to be better than that obtained with only intravenous chemotherapy. Design Hepatic artery therapy is given monthly as a 5 hour perfusion of the hepatic artery using DDP and MIC. Also given is monthy Intravenous (IV) therapy with four hours of Leucovorin (LV), with an injection of FUDR during the last hour of LV, daily x 5 days. Setting all therapy was given at Midwestern Regional Medical Center. Patients Thirty seven patients had no prior chemotherapy, while 33 patients had progressed after prior IV chemotherapy. Intervention Hepatic artery therapy with IV LV-FUDR was given for up to six months depending upon marrow tolerance and response. At that point, if response was ongoing or improving, therapy was continued monthly with only IV LV-FUDR; all therapy was stopped whenever progressive disease was evident. Results of those without prior chemotherapy, the mean overall survival (OS) was 17.3 ± 30.2 months (mean±SD), ranging up to 13 years. Six patients survived more than three years with four are living in continuing complete remission for more than five years. Conclusion This therapy offers the opportunity for long term survival in a subset of patients with metastatic adenocarcinoma of the pancreas who have liver metastases, and some patients can be cured.","PeriodicalId":47280,"journal":{"name":"Journal of the Pancreas","volume":"43 1","pages":""},"PeriodicalIF":0.2,"publicationDate":"2016-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"65955526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Diabetes Type 2 and Pancreatic Cancer: A History Unfolding. 2型糖尿病和胰腺癌:一个历史的展开。
IF 0.2
Journal of the Pancreas Pub Date : 2016-03-01
Andre De Souza, Khawaja Irfan, Faisal Masud, Muhammad Wasif Saif
{"title":"Diabetes Type 2 and Pancreatic Cancer: A History Unfolding.","authors":"Andre De Souza,&nbsp;Khawaja Irfan,&nbsp;Faisal Masud,&nbsp;Muhammad Wasif Saif","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Pancreatic Cancer is the fourth cause of cancer-related deaths in the United States. Up to 80% of pancreatic cancer patients present with either new-onset type 2 diabetes or impaired glucose tolerance at the time of diagnosis. Recent literature suggests that diabetes mellitus type 2 is a risk factor, a manifestation and a prognostic factor for pancreatic cancer. This article is intended to clarify the evidence about diabetes as a risk factor for pancreatic cancer.</p>","PeriodicalId":47280,"journal":{"name":"Journal of the Pancreas","volume":"17 2","pages":"144-148"},"PeriodicalIF":0.2,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5860818/pdf/nihms946834.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"35937551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spleen Autotransplantation Following Laparoscopic Distal Pancreatosplenectomy and Cholecystectomy 腹腔镜远端胰脾和胆囊切除术后自体脾移植
IF 0.2
Journal of the Pancreas Pub Date : 2015-05-20 DOI: 10.6092/1590-8577/3000
Sung Hwan Lee, D. H. Kim, H. Hwang, C. Kang, W. Lee
{"title":"Spleen Autotransplantation Following Laparoscopic Distal Pancreatosplenectomy and Cholecystectomy","authors":"Sung Hwan Lee, D. H. Kim, H. Hwang, C. Kang, W. Lee","doi":"10.6092/1590-8577/3000","DOIUrl":"https://doi.org/10.6092/1590-8577/3000","url":null,"abstract":"Context The lifelong risk of post-splenectomy overwhelming sepsis is major complication after splenectomy. Laparoscopic distal pancreatectomy is an accepted as safe, and adequate procedure for pancreatic pathologies requiring resection of the distal part of the pancreas. However, attempts to preserve the spleen are not always successful and sometimes require unnecessary splenectomy. Spleen autotransplantation can be regarded as inducing iatrogenic splenosis in the abdominal cavity. Case report In this report, we present a case of spleen autotransplantation (about 30 g of splenic tissue) following laparoscopic distal pancreatectomy and inadvertent splenectomy for benign intraductal papillary tumor of the pancreas. Conclusion This procedure may be the last option spleen preservation considered in the era of laparoscopic distal pancreatectomy. Image: Laparoscopic view after completion of spleen autotransplantation.","PeriodicalId":47280,"journal":{"name":"Journal of the Pancreas","volume":"16 1","pages":"299-302"},"PeriodicalIF":0.2,"publicationDate":"2015-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71235227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Carcinosarcoma of the Pancreas: How a Common Blood Disorder Can Hide an Extremely Rare Tumour 胰腺癌肉瘤:一种常见的血液疾病如何隐藏极其罕见的肿瘤
IF 0.2
Journal of the Pancreas Pub Date : 2015-05-20 DOI: 10.6092/1590-8577/3003
A. Katsourakis, C. Svoronos, E. Chatzitheoklitos, Iosif Hadjis, M. Alatsakis, C. Mirelis, A. Sovatzidis, G. Noussios
{"title":"Carcinosarcoma of the Pancreas: How a Common Blood Disorder Can Hide an Extremely Rare Tumour","authors":"A. Katsourakis, C. Svoronos, E. Chatzitheoklitos, Iosif Hadjis, M. Alatsakis, C. Mirelis, A. Sovatzidis, G. Noussios","doi":"10.6092/1590-8577/3003","DOIUrl":"https://doi.org/10.6092/1590-8577/3003","url":null,"abstract":"Context Sarcomas represent a relatively rare malignancy. Primary sarcomas of the pancreas represent an extremely rare pathology. Case report We report a case of primary pancreatic carcinoma that presented with anaemia. The patient underwent a Kausch-Whipple operation, and, 16 months after the operation, the patient is disease free. Conclusion This unique case describes an extremely rare gastrointestinal tumour that was found during the patient's anaemia assessment. Image:  Gastro-duodenoscopy demonstrating a tumor at the ampulla of Vater.","PeriodicalId":47280,"journal":{"name":"Journal of the Pancreas","volume":"1 1","pages":"310-312"},"PeriodicalIF":0.2,"publicationDate":"2015-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71235083","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Hydropic Gallbladder in Three Patients with Poorly Controlled Diabetes Mellitus: What Constitutes Optimal Management? 3例控制不良的糖尿病患者胆囊积液:什么是最佳管理?
IF 0.2
Journal of the Pancreas Pub Date : 2015-05-20 DOI: 10.6092/1590-8577/2998
Yezaz A Ghouri, Idrees Mian, Gitanjali Bhattacharjee, Modushudan Bhattacharjee
{"title":"Hydropic Gallbladder in Three Patients with Poorly Controlled Diabetes Mellitus: What Constitutes Optimal Management?","authors":"Yezaz A Ghouri, Idrees Mian, Gitanjali Bhattacharjee, Modushudan Bhattacharjee","doi":"10.6092/1590-8577/2998","DOIUrl":"https://doi.org/10.6092/1590-8577/2998","url":null,"abstract":"Context Long-standing diabetes mellitus results in autonomic nervous system dysfunction, leading to gastroparesis and cholecystoparesis. The latter can result in hydropic gallbladder, a condition that arises from the accumulation of mucinous secretions within the gallbladder, usually caused by obstruction of the cystic duct, but not in the case of the patients with diabetes that we have illustrated. Case report We describe three patients who presented with non-specific abdominal discomfort at the time of admission for complications of poorly controlled diabetes and were subsequently found to have hydropic gallbladder. We theorize that hydropic gallbladder may be a result of a natural progression of gallbladder dysfunction in poorly controlled diabetics with autonomic neuropathy. In our cases the risk of perioperative mortality was high at the time of presentation. No surgical intervention was performed except in one case with the most significant sized gallbladder, and underwent a temporizing cholecystostomy. Conclusions The development of hydropic gallbladder in patients with non-obstructed cystic ducts highlights the complexities of management of patients with functional biliary pain. The rome committee on functional biliary and pancreatic disorders has defined the characteristics of this pain. There is a need for guidelines to direct appropriate assessment of hydropic gallbladder in diabetics and also to determine the indications for cholecystectomy. Image: HIDA scan showing a low ejection fraction of the gallbladder after administration of CCK.","PeriodicalId":47280,"journal":{"name":"Journal of the Pancreas","volume":"16 1","pages":"290-294"},"PeriodicalIF":0.2,"publicationDate":"2015-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71235273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Pancreatic Panniculitis: A Rare Manifestation of Acute Pancreatitis 胰膜炎:急性胰腺炎的一种罕见表现
IF 0.2
Journal of the Pancreas Pub Date : 2015-05-20 DOI: 10.6092/1590-8577/3001
R. Patel, Ali Khan, Sami Naveed, Jason Brazleton, Mel C. Wilcox
{"title":"Pancreatic Panniculitis: A Rare Manifestation of Acute Pancreatitis","authors":"R. Patel, Ali Khan, Sami Naveed, Jason Brazleton, Mel C. Wilcox","doi":"10.6092/1590-8577/3001","DOIUrl":"https://doi.org/10.6092/1590-8577/3001","url":null,"abstract":"Context Pancreatic panniculitis is a very rare complication associated with pancreatic disease and perhaps even a presage to pancreatic pathology. Case report We present a case of pancreatic panniculitis in a 61 year old patient who was treated for sudden onset of abdominal pain associated with nausea and vomiting secondary to acute pancreatitis of unknown etiology. He subsequently developed skin lesions consistent with pancreatic panniculitis which gradually improved after resolution of his acute condition and treatment with topical steroid cream. Conclusion We discuss and review the literature along with highlighting for the readers the important clinical and histopathologic features of acute pancreatitis associated pancreatic panniculitis. Image:  Initial dermatologic manifestation on lower extremities.","PeriodicalId":47280,"journal":{"name":"Journal of the Pancreas","volume":"38 1","pages":"303-306"},"PeriodicalIF":0.2,"publicationDate":"2015-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71234871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
A Lower Cyst Fluid CEA Cut-Off Increases Diagnostic Accuracy In Identifying Mucinous Pancreatic Cystic Lesions 较低的囊肿液CEA切点可提高胰腺粘液性囊性病变的诊断准确性
IF 0.2
Journal of the Pancreas Pub Date : 2015-05-20 DOI: 10.6092/1590-8577/2994
D. Jin, A. Small, C. Vollmer, N. Jhala, E. Furth, G. Ginsberg, M. Kochman, N. Ahmad, V. Chandrasekhara
{"title":"A Lower Cyst Fluid CEA Cut-Off Increases Diagnostic Accuracy In Identifying Mucinous Pancreatic Cystic Lesions","authors":"D. Jin, A. Small, C. Vollmer, N. Jhala, E. Furth, G. Ginsberg, M. Kochman, N. Ahmad, V. Chandrasekhara","doi":"10.6092/1590-8577/2994","DOIUrl":"https://doi.org/10.6092/1590-8577/2994","url":null,"abstract":"Context Carcinoembryonic antigen analysis of pancreatic cyst fluid is the tumor marker of choice for preoperatively differentiating mucinous from non-mucinous cystic lesions. Objective We aim to determine the most accurate cyst carcinoembryonic antigen cut-off value for distinguishing mucinous cysts from non-mucinous cysts with a focus on discriminating intraductal papillary mucinous neoplasms. Methods The results of pancreatic cyst aspiration carcinoembryonic antigen levels from a single center were retrospectively collected and evaluated for a diagnosis of a mucinous cyst and an assessment of malignancy using surgical histology as the diagnostic standard in 86 patients. Results The median cyst carcinoembryonic antigen level (ng/mL) was significantly higher in mucinous cysts compared with non-mucinous cysts (218 vs. 4.4; P=0.0006) and in intraductal papillary mucinous neoplasms compared with non-mucinous cysts (135 vs. 4.4; P=0.0027). A cyst carcinoembryonic antigen cut-off of 30.7 ng/mL was most accurate (87.2%) for differentiating mucinous from non-mucinous cysts and specifically for differentiating intraductal papillary mucinous neoplasms from non-mucinous cysts (82.7%). Cyst carcinoembryonic antigen levels were not significantly different between malignant and non-malignant mucinous cysts (68.5 vs. 238.1; P=0.51). Conclusions Pancreatic cyst fluid carcinoembryonic antigen can accurately differentiate histologically verified mucinous lesions, including intraductal papillary mucinous neoplasms, from non-mucinous lesions with an optimal cut-off that is much lower than previously reported values. Cyst carcinoembryonic antigen levels are not a reliable predictor of malignancy. Image: Sensitivity and specificity curves of cyst fluid CEA levels for differentiating mucinous from non-mucinous cysts.","PeriodicalId":47280,"journal":{"name":"Journal of the Pancreas","volume":"16 1","pages":"271-277"},"PeriodicalIF":0.2,"publicationDate":"2015-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71234885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 20
Advances in Pancreatic Cancer: The Role of Metabolomics 代谢组学在胰腺癌中的作用
IF 0.2
Journal of the Pancreas Pub Date : 2015-05-20 DOI: 10.6092/1590-8577/2990
V. Nguyen, S. Hurton, S. Ayloo, M. Molinari
{"title":"Advances in Pancreatic Cancer: The Role of Metabolomics","authors":"V. Nguyen, S. Hurton, S. Ayloo, M. Molinari","doi":"10.6092/1590-8577/2990","DOIUrl":"https://doi.org/10.6092/1590-8577/2990","url":null,"abstract":"Metabolomics is an emerging scientific field focusing on compounds, also known as metabolomes that are produced by biologic systems. Metabolomes represent phenotypic end-products of living entities, and are of particular interest as they represent a novel group of biomarkers that can be used for diagnosis, monitoring response to treatments, and more recently as potential therapeutic agents for benign but more so for malignant diseases. One of the main factors associated with improved survival of patients affected by malignancies is early diagnosis, particularly for those tumors with poor prognosis such as pancreatic cancer. Currently, there are no diagnostic tests for the screening of pancreatic cancer, and although novel biomarkers continue to be discovered, none has yet to be proven useful for this purpose. The main aims of this paper are to review the current literature and to summarize the most relevant advances in the field of metabolomics applied to pancreatic adenocarcinoma. Image: Dalhousie University. Halifax, Nova Scotia, Canada.","PeriodicalId":47280,"journal":{"name":"Journal of the Pancreas","volume":"16 1","pages":"244-248"},"PeriodicalIF":0.2,"publicationDate":"2015-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71234534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Acquired 5-Fluorouracil Resistance in Human Pancreatic Carcinoma Cells. A Paradigm for Chemoresistance Mechanisms in Pancreatic Cancer 人胰腺癌细胞获得性5-氟尿嘧啶耐药胰腺癌化疗耐药机制的一个范例
IF 0.2
Journal of the Pancreas Pub Date : 2015-05-20 DOI: 10.6092/1590-8577/2992
M. Schober, R. Jesenofsky, R. Faissner, S. Krug, C. Weidenauer, W. Hagmann, S. Haas, R. Heuchel, M. Löhr
{"title":"Acquired 5-Fluorouracil Resistance in Human Pancreatic Carcinoma Cells. A Paradigm for Chemoresistance Mechanisms in Pancreatic Cancer","authors":"M. Schober, R. Jesenofsky, R. Faissner, S. Krug, C. Weidenauer, W. Hagmann, S. Haas, R. Heuchel, M. Löhr","doi":"10.6092/1590-8577/2992","DOIUrl":"https://doi.org/10.6092/1590-8577/2992","url":null,"abstract":"Context Pancreatic ductal adenocarcinoma is a dismal disease with one of the worst prognoses amongst solid tumors. Its ability to develop chemoresistance mechanisms towards cytotoxic drugs is the main cause of treatment failure. Objective Here, we have established a drug-resistance model for pancreatic cancer in which Capan-1 pancreatic carcinoma cells (designated Capan-1 5-FU2000) acquired 5-fluorouracil (5-FU) resistance and were used as a paradigm to reveal alterations in intracellular signaling cascades that. Those alterations may contribute to the circumvention of apoptosis during the course of the disease, culminating in treatment failure. Methods We made use of 2-D-gelelectrophoresis, mass-spectrometry, sandwich-ELISA and western blotting to compare the proteomic expression patterns of respective mediators involved in pro- and antiapoptotic as well as inflammatory processes in both cell lines. An ATP-based chemosensitivity assay validated the chemoresistant phenotype of the Capan-1 5-FU2000 clones. Results We detected specific changes in our resistant cell clones in particular a decreased expression of S100A4. We also found a decreased basal phosphorylation of SAPK/JNK and P38. The expression of the pro-apoptotic mediators Bok and Bad was down- and up-regulated in these cells, respectively. In case of NfkB p65 and IkB-alpha treatment with 5-FU (2,000 µg/mL for 96 h) markedly induced phosphorylation in native Capan-1 cells. In contrast in resistant clones it decreased phosphorylation of NfkB p65 and did not affect IkB-alpha phosphorylation. Basal phosphorylation of S6-ribosomal-protein was markedly increased in resistant clones, treatment with 5-FU decreased this phosphorylation, while in native Capan-1 cells it was vice versa. Conclusion Thus we can conclude that several pathways were found to be altered in chemoresistant Capan-1 5-FU2000 cells. Moreover these alterations are most likely the consequence of a multistep adaption towards gradual cytotoxic exposure finally culminating in a chemoresistant phenotype. Interfering with these pathways may possibly reverse the phenotype and thus open up alternative treatment options. Image: Effect of 5-FU treatment on NfkB p65 phosphorylation in native and 5-FU resistant cells.","PeriodicalId":47280,"journal":{"name":"Journal of the Pancreas","volume":"219 1","pages":"256-265"},"PeriodicalIF":0.2,"publicationDate":"2015-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71234557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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