CD200 expression in patients with Multiple Myeloma: another piece of the puzzle.

Abstract:

:CD200 is a relatively ubiquitously expressed molecule that plays a role in cancer immune evasion through interaction with its receptors. High expression levels of CD200 have been described in different human malignancies. For example, CD200 has been shown to be targeted after RAS/RAF/MEK/ERK activation in melanoma. Here we present the analysis of CD200 expression in human Multiple Myeloma (MM) samples. We found that CD200-positive cells express ERK and p-ERK. Moreover, UO126, a MEK inhibitor, reduces CD200 expression. Furthermore, we observe that CD200-positive cells show reduced immunogenicity compared to normal lymphocytes and that such immunogenicity increases when UO126 is used. We therefore hypothesize that CD200 expression in MM could suppress antitumor response and that anti-CD200 treatment might be therapeutically beneficial in CD200-expressing tumors.

journal_name

Leuk Res

journal_title

Leukemia research

authors

Conticello C,Giuffrida R,Parrinello N,Buccheri S,Adamo L,Sciuto MR,Colarossi C,Aiello E,Chiarenza A,Romano A,Salomone E,Gulisano M,Giustolisi R,Di Raimondo F

doi

10.1016/j.leukres.2013.08.006

subject

Has Abstract

pub_date

2013-12-01 00:00:00

pages

1616-21

issue

12

eissn

0145-2126

issn

1873-5835

pii

S0145-2126(13)00287-7

journal_volume

37

pub_type

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