Abstract:
:Leucine-rich repeat kinase 2 (LRRK2) is the causal molecule of familial Parkinson's disease (PD), but its true physiological function remains unknown. In the normal mouse, LRRK2 is expressed in kidney, spleen, and lung at much higher levels than in brain, suggesting that LRRK2 may play an important role in these organs. Analysis of age-related changes in LRRK2 expression demonstrated that expression in kidney, lung, and various brain regions was constant throughout adult life. On the other hand, expression of both LRRK2 mRNA and protein decreased markedly in spleen in an age-dependent manner. Analysis of purified spleen cells indicated that B lymphocytes were the major population expressing LRRK2, and that T lymphocytes showed no expression. Consistently, the B lymphocyte surface marker CD19 exhibited an age-dependent decrease of mRNA expression in spleen. These results suggest a possibly novel function of LRRK2 in the immune system, especially in B lymphocytes.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Maekawa T,Kubo M,Yokoyama I,Ohta E,Obata Fdoi
10.1016/j.bbrc.2010.01.041subject
Has Abstractpub_date
2010-02-12 00:00:00pages
431-5issue
3eissn
0006-291Xissn
1090-2104pii
S0006-291X(10)00071-9journal_volume
392pub_type
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