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Wyświetlanie 1-2 z 2
Tytuł:
Surgical treatment of pancreatic cancer
Autorzy:
Masiak-Segit, Wioletta
Rawicz-Pruszyński, Karol
Skórzewska, Magdalena
Polkowski, Wojciech P
Powiązania:
https://bibliotekanauki.pl/articles/1392748.pdf
Data publikacji:
2018
Wydawca:
Index Copernicus International
Tematy:
pancreatic cancer
pancreatoduodenectomy
distal pancreatic resection
Opis:
The only way to cure the patient with adenocarcinoma of the pancreas (RT) is surgical excision of the tumor. The standard surgical treatment of resectable pancreatic carcinoma is considered the classic pancreatoduodenectomy (PD) with the Kausch-Whipple procedure, or the pylorus-preserving PD with the Traverso-Longmire method. The most difficult technically and at the same time the most important PD stage from an oncological point of view is the separation of the head of the pancreas from the superior mesenteric artery. Over the last decades several PD modifications have been developed, focusing on this maneuver in the early phase of the operation, i.e. before the pancreas is cut (an irreversible stage of the procedure). These procedures in the English literature are called “artery-first approach” or “SMA-first approach”. The term “mesopancreas” was created. Complete removal of the mesopancreas together with the proximal part of the jejunum is considered an R0 resection in the case of a tumor of the head of the pancreas with direct or indirect vascular invasion, or metastases to regional lymph nodes, and in English literature it is referred to as pancreatoduodenectomy with systematic mesopancreas dissection (SMDPD). Distal resection of the pancreas (DRT) due to cancer, is associated with a high percentage of positive margins, insufficient number of removed lymph nodes, low survival rates. A new technique was developed - a radical proximal-distal modular pancreatosplenectomy (RAMPS). In RAMPS, surgical operations proceed from the side of the pancreas head towards the tail, the pancreas is cut early, and the splenectomy is performed at the final stages of the procedure. Currently, following the PD model, attempts are made to further modify the original RAMPS technique, especially in the direction of SMA-first approach. In patients with borderline resectable pancreatic tumors or locally advanced tumors, after neoadjuvant treatment, a technique of radical resection with preservance of arterial vessels - “the TRIANGLE operation” has been elaborated. Despite the tremendous progress of surgical techniques, RT is still detected too late in the phase preventing effective resection.
Źródło:
Polish Journal of Surgery; 2018, 90, 2; 45-53
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Immunomodelling Characteristics of Mature Dendritic Cells Stimulated by Colon Cancer Cells Lysates
Autorzy:
Radej, Sebastian
Roliński, Jacek
Rawicz-Pruszyński, Karol
Bury, Paweł
Borowski, Grzegorz
Furmaga, Jacek
Chrościcki, Andrzej
Wallner, Grzegorz
Maciejewski, Ryszard
Powiązania:
https://bibliotekanauki.pl/articles/1395534.pdf
Data publikacji:
2015-02-01
Wydawca:
Index Copernicus International
Tematy:
dendritic cells
colon cancer
cancer cells lysates
Th1
Th2
Opis:
Application of cells with high TAA (tumor associated antigen) presentation potential seems to be crucial in neoplasia immunotherapy. Such feature is distributed in dendritic cells, which present peptides from processed TAA - MHC molecules complex to the T cells of a host. The aim of the study was to assess the influence of colon neoplasia tissue lysate on functioning of generated autologous DC’s in the field of autologous CD4+ lymphocytes immunological response towards Th1/Th2 under in vitro environment together with comparison and assessment of DCs’ immunosuppressive properties acquired from patients with colon cancer. Material and methods. The population of this study consisted of 16 healthy- controls, 36colon cancer patients. Blood samples were collected 24h before planned surgery and preventive antibiotic therapy. Neoplastic tissue sample, was digested for cell lysates preparation. DC’s generation from PBMC was carried out in standard conditionsand medium enriched with rhGM-CSF and rhIL-4. Mature DC`s and cocultured autologous CD4 lymphocytes immunophenotype assessment was analyzed with flow cytometer. Intracellular and culture medium cytokines concentration was analyzed with ELISA and FACS method. Results. DC`s generated from colon cancer patients stimulated with lysates presented greater maturity, lower expression of CD206 antigen, significantly higher expression of HLA-DR, CD208 and CD209 and high intracellular expression of IL-12, compared to non-stimulated cells. Conclusions. The neoplastic tissue in vivo produces a number of substances having an unfavorable effect on immune system, our results suggests using lysates as good dendritic cells stimulators that possibly could have application in colon cancer immunotherapy
Źródło:
Polish Journal of Surgery; 2015, 87, 2; 71-82
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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