TY - JOUR
T1 - Establishment of an animal model for Waldenström's macroglobulinemia
AU - Tsingotjidou, Anastasia S.
AU - Loukopoulos, Panayiotis
N1 - Authors:
Tsingotjidou, A. S.
Emmanouilides, C. E.
Siotou, E.
Poutahidis, T.
Xagorari, A.
Loukopoulos, P.
Sotiropoulos, D.
Bekiari, C.
Doulberis, M.
Givissis, P.
Fassas, A.
Anagnostopoulos, A.
Keywords: Animals
Cell Survival
Humans
Immunoglobulin M/blood
Immunohistochemistry
Mice
Mice, Inbred NOD
Mice, SCID
*Models, Animal
Neoplasm Metastasis
*Waldenstrom Macroglobulinemia/immunology/pathology
1873-2399 (Electronic)
0301-472X (Linking)
Journal Article
Research Support, Non-U.S. Gov't
PY - 2009
Y1 - 2009
N2 - OBJECTIVE: Waldenstrom's macroglobulinemia (WM) is a low-grade lymphoplasmacytoid lymphoma characterized by production of monoclonal immunoglobulin M (IgM). The present study was undertaken with the aim of developing a novel nonobese diabetic/severe combined immunodeficient (NOD/SCID) mouse model of WM. MATERIALS AND METHODS: Pairs of bone particles derived from adult humans were successfully implanted intramuscularly in NOD/SCID mice. Each mouse was implanted with a bone fragment taken from a neoplastic disease-free individual in the one hind limb and with a different biopsy taken from a WM patient in the other. RESULTS: All mice implanted with the bone marrow core biopsies had increased levels of serum IgM 1 month following the implantation onward. Histopathologic and immunohistochemical analysis showed that in approximately half of the mice WM cells metastasized from the WM bone implant to the distantly implanted non-WM bone. Serum IgM value records of all mice correlated with histopathological observations and immunohistochemical analysis for neoplastic cell density and metastatic growth. CONCLUSION: Results obtained in the present study suggest that IgM-producing WM cells not only retained viability in the bone marrow of the WM bone biopsy, but also metastasized to the normal bone marrow of the distant bone implant. The mouse model reported here improves on existing models of WM by recapitulating the adult human bone marrow microenvironment of abnormal WM neoplastic cells.
AB - OBJECTIVE: Waldenstrom's macroglobulinemia (WM) is a low-grade lymphoplasmacytoid lymphoma characterized by production of monoclonal immunoglobulin M (IgM). The present study was undertaken with the aim of developing a novel nonobese diabetic/severe combined immunodeficient (NOD/SCID) mouse model of WM. MATERIALS AND METHODS: Pairs of bone particles derived from adult humans were successfully implanted intramuscularly in NOD/SCID mice. Each mouse was implanted with a bone fragment taken from a neoplastic disease-free individual in the one hind limb and with a different biopsy taken from a WM patient in the other. RESULTS: All mice implanted with the bone marrow core biopsies had increased levels of serum IgM 1 month following the implantation onward. Histopathologic and immunohistochemical analysis showed that in approximately half of the mice WM cells metastasized from the WM bone implant to the distantly implanted non-WM bone. Serum IgM value records of all mice correlated with histopathological observations and immunohistochemical analysis for neoplastic cell density and metastatic growth. CONCLUSION: Results obtained in the present study suggest that IgM-producing WM cells not only retained viability in the bone marrow of the WM bone biopsy, but also metastasized to the normal bone marrow of the distant bone implant. The mouse model reported here improves on existing models of WM by recapitulating the adult human bone marrow microenvironment of abnormal WM neoplastic cells.
KW - comparative oncology
UR - http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=19302921
M3 - Article
VL - 37
SP - 469
EP - 476
JO - Experimental Hematology
JF - Experimental Hematology
SN - 0301-472X
IS - 4
M1 - 19302921
ER -