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Linderholm, Mats
Publications (3 of 3) Show all publications
Linderholm, M., Höglund, M. & Stockelberg, D. (2008). Specialist associations' mission: equal and good cancer care for all. Läkartidningen, 105(5), 306-307
Open this publication in new window or tab >>Specialist associations' mission: equal and good cancer care for all
2008 (English)In: Läkartidningen, ISSN 0023-7205, E-ISSN 1652-7518, Vol. 105, no 5, p. 306-307Article in journal (Refereed) Published
Abstract [en]

  

Keywords
Evidence-Based Medicine Health Services Accessibility/standards Hematologic Neoplasms/diagnosis/therapy Humans *Neoplasms/diagnosis/therapy Oncology Service, Hospital/*standards Quality Assurance, Health Care
National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:liu:diva-43388 (URN)73690 (Local ID)73690 (Archive number)73690 (OAI)
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-12-13
Bäckman, E., Bergh, A.-C., Lagerdahl, I., Rydberg, B., Sundström, C., Tobin, G., . . . Rosén, A. (2007). Thioredoxin, produced by stromal cells retrieved from the lymph node microenvironment, rescues chronic lymphocytic leukemia cells from apoptosis in vitro. Haematologica, 92(11), 1495-1504
Open this publication in new window or tab >>Thioredoxin, produced by stromal cells retrieved from the lymph node microenvironment, rescues chronic lymphocytic leukemia cells from apoptosis in vitro
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2007 (English)In: Haematologica, ISSN 0390-6078, E-ISSN 1592-8721, Vol. 92, no 11, p. 1495-1504Article in journal (Refereed) Published
Abstract [en]

Background and Objectives: The redox-regulatory protein thioredoxin has several functions including transcriptional regulation, and antioxidant, cytokine, and chemokine activities. We have previously shown that extracellular thioredoxin protects B-cell chronic lymphocytic leukemia (CLL) cells from apoptosis in vitro. In this study we were interested to determine whether thioredoxin is produced by cells surrounding the CLL cells in the in vivo microenvironment and whether this cell-derived thioredoxin has any leukemia growth-promoting effect in vitro. Design and Methods: Lymph nodes from CLL patients (n=25) were analyzed for thioredoxin expression by immunohistology. Stromal cells purified from the lymph nodes were analyzed for thioredoxin secretion at the single cell level using an ELIspot assay. The survival effect of the stromal-derived thioredoxin was tested by co-culturing stromal- and CLL cells with and without Fab-fragments of an anti-thioredoxin antibody. Results: The results indicated that the thioredoxin production correlated with the amount of proliferating cells and was mainly localized to the proliferation centers (pseudofollicles) in the CLL lymph nodes. The leukemia cells per se showed minimal thioredoxin levels, in contrast, stromal cells strongly expressed thioredoxin. Purified primary stromal cells, which secreted extracellular thioredoxin, significantly protected the CLL cells from undergoing apoptosis in 72 h co-cultures. Interestingly, this anti-apoptotic effect could be abrogated by addition of Fab-fragments of an anti- thioredoxin antibody. Interpretation and Conclusions: In conclusion, we have shown that stromal cells in the lymph node microenvironment produce thioredoxin and that the thioredoxin production is localized to the proliferation centers of the CLL lymph nodes. In addition, thioredoxin produced by purified stromal cells rescued CLL cells from apoptosis in vitro. ©2007 Ferrata Storti Foundation.

National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:liu:diva-40728 (URN)10.3324/haematol.11448 (DOI)54003 (Local ID)54003 (Archive number)54003 (OAI)
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-12-13
Eliasson, P., Andersson, P., Willander, K., Linderholm, M., Söderkvist, P. & Jönsson, J.-I. (2006). Letter: Absence of hot spot mutations of the PIK3CA gene in acute myeloid leukaemia [Letter to the editor]. European Journal of Haematology, 77(1), 86-87
Open this publication in new window or tab >>Letter: Absence of hot spot mutations of the PIK3CA gene in acute myeloid leukaemia
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2006 (English)In: European Journal of Haematology, ISSN 0902-4441, E-ISSN 1600-0609, Vol. 77, no 1, p. 86-87Article in journal, Letter (Other academic) Published
Abstract [en]

[No abstract available]

National Category
Medical and Health Sciences
Identifiers
urn:nbn:se:liu:diva-37786 (URN)10.1111/j.0902-4441.2006.t01-1-EJH2605.x (DOI)38625 (Local ID)38625 (Archive number)38625 (OAI)
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2017-12-13Bibliographically approved
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