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- Omazic, B., et al.
(författare)
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A Preliminary Report : Radical Surgery and Stem Cell Transplantation for the Treatment of Patients with Pancreatic Cancer
- 2017
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Ingår i: Journal of immunotherapy (1997). - : Lippincott Williams and Wilkins. - 1524-9557 .- 1537-4513. ; 40:4, s. 132-139
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Tidskriftsartikel (refereegranskat)abstract
- We examined the immunologic effects of allogeneic hematopoietic stem cell transplantation (HSCT) in the treatment of pancreatic ductal adenocarcinoma, a deadly disease with a median survival of 24 months for resected tumors and a 5-year survival rate of 6%. After adjuvant chemotherapy, 2 patients with resected pancreatic ductal adenocarcinoma underwent HSCT with HLA-identical sibling donors. Comparable patients who underwent radical surgery, but did not have a donor, served as controls (n=6). Both patients developed humoral and cellular (ie, HLA-A∗01:01-restricted) immune responses directed against 2 novel tumor-associated antigens (TAAs), INO80E and UCLH3 after HSCT. Both TAAs were highly expressed in the original tumor tissue suggesting that HSCT promoted a clinically relevant, long-lasting cellular immune response. In contrast to untreated controls, who succumbed to progressive disease, both patients are tumor-free 9 years after diagnosis. Radical surgery combined with HSCT may cure pancreatic adenocarcinoma and change the cellular immune repertoire capable of responding to clinically and biologically relevant TAAs.
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- Glimelius, B, et al.
(författare)
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The Swedish Council on Technology Assessment in Health Care (SBU) systematic overview of chemotherapy effects in some major tumour types--summary and conclusions
- 2001
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Ingår i: Acta oncologica (Stockholm, Sweden). - : Informa UK Limited. - 0284-186X. ; 40, s. 135-
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Forskningsöversikt (refereegranskat)abstract
- This report by The Swedish Council on Technology Assessment in Health Care (SBU) reviews, classifies, and grades the scientific literature on cancer chemotherapy in some major tumour types, describes the practice of chemotherapy in Sweden, compares practice with scientific knowledge, and analyses the costs and cost-effectiveness of chemotherapy. The report is intended primarily for decision-makers at various levels, both practitioners and administrators. It is also of interest for the medical profession. The extensive body of scientific literature was reviewed according to strict criteria that reflected the scientific weight of the literature. Sixteen experts representing different disciplines (oncology, surgery, internal medicine, health economy and quality of life research) participated in the literature review. Each section was discussed within the project group and was reviewed by at least one, but usually two international researchers. Additional input was provided by national experts representing different scientific disciplines. For the final evaluation to be as close to the objective truth as possible, a concerted effort was made to guarantee objectivity and thorough assessment of current knowledge about the effects of chemotherapy on the selected cancers. The tumour types selected for this assessment include firstly those types where three investigations had shown an increased use of chemotherapy in Sweden during the latest decade. These were non-small cell lung cancer (NSCLC), gastric cancer, pancreatic cancer, colorectal cancer and urinary bladder cancer. Secondly, the two tumour types comprising the greatest number of patients treated with chemotherapy in Sweden, breast cancer and haematological malignancies, were included. Among the haematological malignancies, the most prevalent ones, acute myeloid leukaemia (AML), chronic lymphocytic leukaemia (CLL), Hodgkin's disease (HD), aggressive non-Hodgkin's lymphoma (NHL) of the large B-cell type and indolent NHL of follicular type were evaluated. These constitute about 75%, of all haematological malignancies. Thirdly, ovarian cancer was included since chemotherapy has been extensively used and since, at the time of the planning of this overview, a group of very expensive drugs, the taxanes, had preliminarily shown promising results. A wealth of scientific literature has been published on cancer therapy. The review presented in this report is limited to scientific studies judged to be important for evaluating chemotherapy efficacy. Assessments of the content and quality of these studies, and a critical summary of the results in all stages of the selected tumours, have never before been attempted in this way. However, similar comprehensive overviews of certain stages of the tumours have previously been made. These overviews were also critically evaluated. Totally 1,496 studies involving 558,743 patients were reviewed. The survey of practice of chemotherapy use involved all departments of surgery, urology, gynaecology, internal medicine including haematologic units, pulmonary medicine and general and gynaecologic oncology at 16 hospitals in two health care regions in Sweden, covering 39% of the Swedish population. During the 4 weeks of the survey, all patients with the diagnoses concerned who received chemotherapy were registered. The study included 1,590 patients. The working group's general conclusions are summarised in the following points: The literature on the effects of chemotherapy is extensive. Chemotherapy has a well-documented role in the curative and palliative treatment of patients with several types of cancer. The use of chemotherapy is of utmost importance for the possibility of cure in certain tumour types. In other tumours, chemotherapy increases the possibility of cure when added to local and regional treatments, particularly surgery. In the instances of no possibility of cure, chemotherapy may to a variable extent improve both patient survival and well-being. In Sweden chemotherapy is largely used in accordance with that documented in the scientific literature. The extent of both over- and under-treatment seems to be limited but cannot be excluded at the individual patient level. The literature-based knowledge is scientifically of lower quality in the most chemotherapy sensitive tumours than in tumours showing more limited sensitivity. In the more sensitive tumours, positive effects on a symptomatic stage and survival were seen several decades ago. In those days, clinical treatment studies did not fulfil the current high quality requirements. Small life-prolonging effects of chemotherapy are sometimes very well documented in large, high quality scientific studies. Some of these s
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- Isaksson, B, et al.
(författare)
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Obstructive jaundice results in increased liver expression of uncoupling protein 2 and intact skeletal muscle glucose metabolism in the rat
- 2002
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Ingår i: Scandinavian Journal of Gastroenterology. - : Informa UK Limited. - 1502-7708 .- 0036-5521. ; 37:1, s. 104-111
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Tidskriftsartikel (refereegranskat)abstract
- Background: A majority of patients with pancreatic cancer have obstructive jaundice and diabetes with skeletal muscle insulin resistance. Surgery for these patients is associated with significant morbidity. Uncoupling protein 2 (UCP2) has been proposed to regulate energy expenditure and promote liver vulnerability. The effects of obstructive jaundice on muscle glucose metabolism and expression of UCP2 in liver and muscle are unknown. Methods: Rats were operated with bile duct ligation (BDL). After 7 days, UCP2 mRNA levels were determined in liver and muscle. Simultaneously, insulin-stimulated glucose transport and glycogen synthesis in skeletal muscle were analyzed in vitro. Results: The jaundiced rats lost more weight than pair-fed controls. UCP2 mRNA levels were increased 5-fold in liver but not in muscle in jaundiced rats compared to pair-fed controls. The jaundiced rats were hypoglycemic and hypoinsulinemic but demonstrated intact or enhanced insulin action on skeletal muscle glucose transport and glycogen synthesis in vitro. Muscle glycogen content was increased in the jaundiced rats. Conclusions: Experimental obstructive jaundice in the rat is associated with increased liver expression of UCP2. rapid weight loss, and intact insulin action on skeletal Muscle glucose metabolism. Obstructive jaundice. by upregulated liver UCP2. may contribute to the cachexia and high surgical morbidity observed in these patients, but not to skeletal muscle insulin resistance in pancreatic cancer patients.
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- Leinsköld, Ted, et al.
(författare)
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Effect of postoperative insulin-like growth factor I supplementation on protein metabolism in humans
- 1995
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Ingår i: British Journal of Surgery. - : Oxford University Press (OUP). - 0007-1323 .- 1365-2168. ; 82:7, s. 921-925
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Tidskriftsartikel (refereegranskat)abstract
- Insulin-like growth factor I (IGF-I) has been shown experimentally to exert a nitrogen-sparing effect in both animals and humans. Its effects on protein metabolism during the first 5 days after radical large bowel resection were investigated. Nineteen patients were randomly allocated to receive either human recombinant IGF-I (2 × 80 μ/kg body weight subcutaneously, n = 10) or placebo (n = 9) starting on the morning of the first day after operation. All patients received parenteral nutrition (glucose 3 g and nitrogen 0.1 g/kg/day). The mean(s.e.m.) urinary nitrogen: creatinine ratio was significantly reduced in patients who received IGF-I compared with those given placebo (275.0(17.1) compared with 386.3(23.6), P<0.01). The mean urinary 3-methylhistidine: creatinine ratio and nitrogen balance were lower in the IGF-I group, but not significantly so. Plasma IGF-I concentrations were four times higher in the treated group compared with those in the placebo group. Insulin-like growth factor binding protein 3 (IGFBP-3) increased significantly after the start of IGF-I treatment, compared with mean postoperative levels. The mean blood glucose concentration was significantly lower in the IGF-I group than the placebo group (P < 0.05) but no patient had a hypoglycaemic attack. The authors conclude that IGF-I does not significantly influence the nitrogen balance, but that results indicate a possible nitrogen-sparing effect in patients after major abdominal operations. IGF-I therapy is safe, and may be of value in catabolic patients after serious injury and major operations.
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- Leinsköld, Ted, et al.
(författare)
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Gastrointestinal growth factors and pancreatic islet hormones during postoperative IGF-I supplementation in man
- 2000
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Ingår i: Journal of Endocrinology. - : Bioscientifica. - 0022-0795 .- 1479-6805. ; 167:2, s. 331-338
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Tidskriftsartikel (refereegranskat)abstract
- Insulin-like growth factor-I (IGF-I) has been demonstrated to exert a nitrogen sparing effect, both experimentally and in patients after abdominal surgery. IGF-I is a major mediator for the anabolic effects of growth hormone (GH). Whether elevated circulating IGF-I levels are the sole mediator of the anabolic effects following GH has not been clarified. IGF-I influences glucose metabolism, both through its own specific receptor and by activating the insulin receptor, and has also been proposed to influence pancreatic islet secretion directly. In the present study, the postoperative effects of IGF-I on plasma levels of other gastrointestinal and pancreatic islet hormones and growth factors were measured in patients after abdominal surgery. Fifteen patients who were candidates for large bowel resection were randomly divided into two groups: IGF-I-treated (n=8) and placebo-treated (n=7). The IGF-I group received daily two s.c. injections of human recombinant IGF-I (80 microg/kg body weight) for five days, beginning on the morning of the first postoperative day. The other group received placebo injections. Fasting plasma levels of gastrointestinal growth factors (epidermal growth factor, transforming growth factor-alpha, IGF-II), gastrointestinal hormones (gastrin, enteroglucagon, peptide YY), and islet hormones (insulin, islet amyloid polypeptide (IAPP) and pancreatic glucagon) were determined by RIA preoperatively and after five days of treatment. No significant effects of IGF-I on other growth factors or gastrointestinal hormones were seen. A marked increase in plasma insulin postoperatively compared with the preoperative levels (42+/-3 vs 61+/-5 pM, P<0.05) was seen in the placebo group, whereas the postoperative levels in the IGF-I-treated patients remained unchanged (44+/-3 vs 45+/-4 pM). A similar pattern was observed for IAPP and cortisol concentrations. No differences in glucagon concentrations were seen. In conclusion, these results suggest that IGF-I does not influence production of other gastrointestinal hormones thought to be involved in alimentary growth or pancreatic glucagon. In contrast, IGF-I caused a marked reduction of insulin and IAPP secretion. The inhibition of beta-cell secretion could be direct or, alternatively, could involve an improvement in postoperative insulin resistance, perhaps by reducing serum cortisol.
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- Omazic, B, et al.
(författare)
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Reconstitution of the ig heavy chain CDR3 repertoire after allogeneic haematopoietic stem cell transplantation with myeloablative or reduced-intensity conditioning regimens
- 2005
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Ingår i: Scandinavian Journal of Immunology. - : Wiley. - 1365-3083 .- 0300-9475. ; 61:1, s. 72-81
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Tidskriftsartikel (refereegranskat)abstract
- The objective of this study was to investigate B-lymphocyte reconstitution in patients undergoing allogeneic haematopoietic stem cell transplantation (HSCT) after myeloablative conditioning (MAC) or reduced-intensity conditioning (RIC) regimens. B-lymphocyte reconstitution was studied by monitoring the CDR3 repertoire with spectratyping. We demonstrate a delay in the recovery of the B-lymphocyte repertoire, measured by variation in size distribution of the immunoglobulin H CDR3 in patients conditioned with RIC compared to MAC. We found no general explanation for this finding, but when clinical data for each patient were studied in detail, we could identify a cause for the oligoclonality of the B-lymphocyte repertoire after HSCT with RIC for each of the patients. Older patients and donors, low cell dose at transplantation, relapse, graft-versus-host disease (GVHD) and its treatment as well as cytomegalovirus infection and its treatment are all possible causes for the restriction of the B-lymphocyte repertoire observed in this study. Taken together, reconstitution of the B-lymphocyte repertoire after HSCT is a process dependent on multiple factors and differs between patients. The conditioning regimen may be of importance, but data from this study suggest that individual factors and the various complications occurring after HSCT are more likely to determine the development of the B-lymphocyte repertoire.
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