Abstract:
:The number of circulating plasma cells (CPC) was determined on mononuclear cell preparations after Giemsa (morphology) and light chain staining (immunocytochemistry). Both methods gave reproducible and identical results when CPC were 1% or more. Using this limit, no CPC were observed in MGUS (0/11) and primary amyloidosis (0/2), whereas 45/98 (45.9%) multiple myeloma (MM) pts had > or = 1% CPC. 3/14 pts (21.4%) in stage I, 5/13 pts (38.5%) in stage II, 20/28 pts (71.4%) in stage III, 4/25 pts (16%) at plateau phase, and 13/18 pts (72.2%) at relapse had > or = 1% CPC (p < 0.001). Mean beta-2 microglobulin was 3.77 mg/l and 6.08 mg/l for pts without or with > or = 1% CPC, respectively p = 0.0001). Presence of CPC was also correlated with an higher percentage of bone marrow PC, but not with the number of Ki-67 positive BM-PC, and not with CRP or LDH levels. K/L and Gamma/Alpha CPC isotype ratio showed these cells as monotypic in nearly all pts. The prognostic value could not really be assessed in this study, as only the initial response to therapy was investigated, and the latter failed to give any difference between pts with and without CPC. So, presence of CPC is not an infrequent finding, but is highly related to tumor mass and active disease; in most if not all patients they are monotypic and certainly belong to the malignant clone. Their prognostic value is unclear but under current investigation; CPC are correlated with B-2M level.
journal_name
Leuk Lymphomajournal_title
Leukemia & lymphomaauthors
Zandecki M,Facon T,Preudhomme C,Canis F,Izydorczyk V,Lovi V,Hammad M,Bauters F,Cosson Adoi
10.3109/10428199409049709subject
Has Abstractpub_date
1994-08-01 00:00:00pages
491-6issue
5-6eissn
1042-8194issn
1029-2403journal_volume
14pub_type
杂志文章abstract::The emergence of radioimmunotherapy (RIT) provides a new therapeutic approach in which monoclonal antibodies directed against tumor-specific antigens are used to target therapeutic radioisotopes to sites of disseminated disease. The target cell is eliminated and adjacent tumor cells, to which antibody has not bound, a...
journal_title:Leukemia & lymphoma
pub_type: 杂志文章,评审
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abstract::The purpose of this phase 2 study was to determine the activity and safety of six cycles of bendamustine and eight rituximab (RB) as first-line treatment of adult patients with advanced stage non-follicular indolent non-Hodgkin lymphomas (INFL). The primary end-point was the complete response rate (CRR) with expected ...
journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
pub_type: 临床试验,杂志文章,多中心研究
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
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pub_type: 杂志文章,多中心研究,随机对照试验
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
pub_type: 临床试验,杂志文章
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
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journal_title:Leukemia & lymphoma
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