T-cells in the cerebrospinal fluid express a similar repertoire of inflammatory chemokine receptors in the absence or presence of CNS inflammation: implications for CNS trafficking
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T-cells in the cerebrospinal fluid express a similar repertoire of inflammatory chemokine receptors in the absence or presence of CNS inflammation : implications for CNS trafficking. / Kivisäkk, P; Trebst, C; Liu, Z; Tucky, B H; Sørensen, Torben Lykke; Rudick, R A; Mack, M; Ransohoff, R M.
In: Clinical and Experimental Immunology, Vol. 129, No. 3, 09.2002, p. 510-8.Research output: Contribution to journal › Journal article › Research
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T1 - T-cells in the cerebrospinal fluid express a similar repertoire of inflammatory chemokine receptors in the absence or presence of CNS inflammation
T2 - implications for CNS trafficking
AU - Kivisäkk, P
AU - Trebst, C
AU - Liu, Z
AU - Tucky, B H
AU - Sørensen, Torben Lykke
AU - Rudick, R A
AU - Mack, M
AU - Ransohoff, R M
PY - 2002/9
Y1 - 2002/9
N2 - It is believed that chemokines and their receptors are involved in trafficking of T-cells to the central nervous system (CNS). The aim of the current study was to define the expression on cerebrospinal fluid (CSF) T-cells of six chemokine receptors associated with trafficking to sites of inflammation. Flow cytometry was used to detect chemokine receptor expression. We observed that CD3+T-cells in the CSF express a restricted array of inflammatory chemokine receptors, specifically CXCR3, CCR5 and CCR6, but little CCR1-3. This repertoire was independent of the presence of CNS inflammation, since comparable findings were obtained in patients with multiple sclerosis (MS) and individuals with non-inflammatory neurological diseases. The enrichment of CCR5+T-cells in the CSF could largely be explained by higher frequency of CD4+/CD45RO+T-cells in this compartment. In contrast, CD4+/CD45RO+T-cells expressing CXCR3 were significantly enriched in CSF as compared with blood. Similar levels of CCR6+/CD3+T-cells were observed in blood and CSF, while levels of CCR2+/CD3+T-cells were lower in CSF than in blood. The CSF was virtually devoid of CCR5+/CXCR3- T-cells, suggesting that the expression of CCR5 alone is not sufficient for the trafficking of CD3+T-cells to the CSF. We hypothesize that CXCR3 is the principal inflammatory chemokine receptor involved in intrathecal accumulation of T-cells in MS. Through interactions with its ligands, CXCR3 is proposed to mediate retention of T-cells in the inflamed CNS.
AB - It is believed that chemokines and their receptors are involved in trafficking of T-cells to the central nervous system (CNS). The aim of the current study was to define the expression on cerebrospinal fluid (CSF) T-cells of six chemokine receptors associated with trafficking to sites of inflammation. Flow cytometry was used to detect chemokine receptor expression. We observed that CD3+T-cells in the CSF express a restricted array of inflammatory chemokine receptors, specifically CXCR3, CCR5 and CCR6, but little CCR1-3. This repertoire was independent of the presence of CNS inflammation, since comparable findings were obtained in patients with multiple sclerosis (MS) and individuals with non-inflammatory neurological diseases. The enrichment of CCR5+T-cells in the CSF could largely be explained by higher frequency of CD4+/CD45RO+T-cells in this compartment. In contrast, CD4+/CD45RO+T-cells expressing CXCR3 were significantly enriched in CSF as compared with blood. Similar levels of CCR6+/CD3+T-cells were observed in blood and CSF, while levels of CCR2+/CD3+T-cells were lower in CSF than in blood. The CSF was virtually devoid of CCR5+/CXCR3- T-cells, suggesting that the expression of CCR5 alone is not sufficient for the trafficking of CD3+T-cells to the CSF. We hypothesize that CXCR3 is the principal inflammatory chemokine receptor involved in intrathecal accumulation of T-cells in MS. Through interactions with its ligands, CXCR3 is proposed to mediate retention of T-cells in the inflamed CNS.
KW - Adult
KW - Antigens, CD3
KW - Antigens, CD45
KW - CD4-Positive T-Lymphocytes
KW - Central Nervous System
KW - Chemotaxis, Leukocyte
KW - Demyelinating Autoimmune Diseases, CNS
KW - Female
KW - Humans
KW - Male
KW - Middle Aged
KW - Multiple Sclerosis
KW - Receptors, CCR5
KW - Receptors, CXCR3
KW - Receptors, Chemokine
KW - T-Lymphocytes
M3 - Journal article
C2 - 12197893
VL - 129
SP - 510
EP - 518
JO - Clinical and Experimental Immunology, Supplement
JF - Clinical and Experimental Immunology, Supplement
SN - 0964-2536
IS - 3
ER -
ID: 111410303