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2006 | 53 | 2 |

Tytuł artykułu

CD40 stimulation induces differentiation of acute lymphoblastic leukemia cells into dendritic cells

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Despite the very high percentage of long-term remissions in acute lymphoblastic leukemia (ALL) in children, some of them suffer from recurrence of the disease. New treatment modalities, e.g. effective geno- and immunotherapy are needed. The use of neoplasmatic cells to present tumor antigens is one of the approaches in cancer vaccines. ALL cells lack the expression of costimulatory molecules and are poor antigen presenting cells (APCs) for T-cell activation. CD40/40L interaction stimulates B-cells to proliferate, differentiate, upregulate costimulatory molecules and increase antigen presentation. The aim of the study was to test the hypothesis that ALL cells can be turned into professional APCs by CD40L activation. Children with B-cell precursor ALL were enrolled into the study. Mononuclear cells from bone marrow or peripheral blood were stimulated with CD40L and interleukin 4. Results: 1) after culture we noted upregulation of all assessed costimulatory, adhesion and activatory molecules i.e. CD1a, CD11c, CD40, CD54, CD80, CD83, CD86, CD123, HLA class I and II; 2) CD40L activated ALL cells induced proliferation of allogeneic T-cells (measured by [3H]thymidine incorporation). These results confirm the possibility of enhancing the immunogenicity of ALL cells with the CD40L system and indicate that this approach can be used in immunotherapeutic trials.

Wydawca

-

Rocznik

Tom

53

Numer

2

Opis fizyczny

p.377-382,fig.,ref.

Twórcy

autor
  • Medical University of Bialystok, Bialystok, Poland
autor
autor

Bibliografia

  • Biagi E, Dotti G, et al. (2005) Molecular transfer of CD40 and OX40 ligands to leukemic human B cells induces expansion of autologous tumor-reactive cytotoxic T lymphocytes. Blood 105: 2436–2442.
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  • D’Amico G, Bugarin MV, Bianchi G, Pirovano G, Bonamino M, Marin V, Allavena P, Biagi E, Biondi A (2004a) CD40 activation of BCP-ALL cells generates IL-10 pro ducing, IL-12 defective APCs that induce allogeneic Tcell anergy. Blood 104: 744–751.
  • D’Amico G, Marin V, Biondi A, Bonamino MH (2004b) Potential use of CD40 ligand for immunotherapy of childhood B-cell precursor acute lymphoblastic leukaemia. Best Pract Res Clin Hematol 17: 465–477.
  • Ghia P, Transidico P, et al. (2001) Chemoattractants MDC and TARC are secreted by malignant B-cell precursors following CD40 ligation and support the migration of leukemia-specific T-cells. Blood 98: 533–540.
  • Gruber TA, Skelton DC, Kohn DB (2002) Requirement for NK cells in CD40 ligand-mediated rejection of Philadelphia chromosome-positive acute lymphoblastic leukemia cells. J Immunol 168: 73–80.
  • Haining WN, Cardoso AA, et al. (2005) Failure to define window of time for autologous tumor vaccination in patients with newly diagnosed or relapsed acute lymphoblastic leukemia. Exp Hematol 33: 286–294.
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Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

bwmeta1.element.agro-article-e16ce335-4451-4adf-b538-48eed6bc4778
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