PMID- 19220419 OWN - NLM STAT- MEDLINE DCOM- 20090518 LR - 20211020 IS - 1600-0609 (Electronic) IS - 0902-4441 (Print) IS - 0902-4441 (Linking) VI - 82 IP - 5 DP - 2009 May TI - A molecular analysis of biclonal follicular lymphoma: further evidence for bone marrow origin and clonal selection. PG - 398-403 LID - 10.1111/j.1600-0609.2009.01233.x [doi] AB - We report a follicular lymphoma (FL) case presenting the coexistence of two tumor cell subpopulations in lymph node (LN) and bone marrow (BM), which exhibited an inverse pattern of immunoglobulin light (IgL) chain gene rearrangement and expression: Igkappa-lambda+ in LN and Igkappa+lambda- in BM. These tumor clones shared an identical BCL2-IgH recombination, accompanying t(14;18)(q32;q21) translocation, and an identical variable, diversity and joining segments joining with clone-specific VH somatic hypermutations on the untranslocated IgH allele. Our study provides further evidence that FL clones, originating from common progenitor cells, can be developed independently at different sites and with different IgL expression after immune selection. FAU - Nakamura, Yuichi AU - Nakamura Y AD - Department of Hematology, Saitama Medical University, Saitama, Japan. ynakam@saitama-med.ac.jp FAU - Sato, Yasutaka AU - Sato Y FAU - Yoshida, Katsuhiko AU - Yoshida K FAU - Kakegawa, Emi AU - Kakegawa E FAU - Ito, Yoshihiro AU - Ito Y FAU - Seyama, Atsushi AU - Seyama A FAU - Kayano, Hidekazu AU - Kayano H FAU - Bessho, Masami AU - Bessho M LA - eng PT - Case Reports PT - Journal Article DEP - 20090205 PL - England TA - Eur J Haematol JT - European journal of haematology JID - 8703985 SB - IM MH - Bone Marrow/*pathology MH - Cell Lineage MH - Clone Cells/pathology MH - Female MH - Genes, Immunoglobulin Light Chain MH - Humans MH - Lymphoma, Follicular/*pathology MH - Middle Aged PMC - PMC2730550 EDAT- 2009/02/18 09:00 MHDA- 2009/05/19 09:00 CRDT- 2009/02/18 09:00 PHST- 2009/02/18 09:00 [entrez] PHST- 2009/02/18 09:00 [pubmed] PHST- 2009/05/19 09:00 [medline] AID - EJH1233 [pii] AID - 10.1111/j.1600-0609.2009.01233.x [doi] PST - ppublish SO - Eur J Haematol. 2009 May;82(5):398-403. doi: 10.1111/j.1600-0609.2009.01233.x. Epub 2009 Feb 5.