Differential functional expression of clotrimazole-sensitive Ca2+-activated K+ current in Bal-17 and WEHI-231 murine B lymphocytes
DC Field | Value | Language |
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dc.contributor.author | Zheng, Haifeng | - |
dc.contributor.author | Ko, Jae Hong | - |
dc.contributor.author | Nam, Joo Hyun | - |
dc.contributor.author | Earm, Yung E | - |
dc.contributor.author | Kim, Sung Joon | - |
dc.date.accessioned | 2023-06-13T02:41:47Z | - |
dc.date.available | 2023-06-13T02:41:47Z | - |
dc.date.issued | 2006-02 | - |
dc.identifier.issn | 1226-4512 | - |
dc.identifier.issn | 2093-3827 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/66782 | - |
dc.description.abstract | The intermediate conductance Ca2+-activated K+ channels (SK4, IKCa1) are present in lymphocytes, and their membrane expression is upregulated by various immunological stimuli. In this study, the activity of SK4 was compared between Bal-17 and WEHI-231 cell lines which represent mature and immature stages of murine B lymphocytes, respectively. The whole-cell patch clamp with high-Ca2+ (0.81μM) KCl pipette solution revealed a voltage-independent K+ current that was blocked by clotrimazole (1 mM), an SK4 blocker. The expression of mRNAs for SK4 was confirmed in both Bal-17 and WEIH-231 cells. The density of clotrimazole-sensitive SK4 current was significantly larger in Bal-17 than WEHI-231 cells (- 11.4±3.1 Vs. - 5.7±1.15 pA/pF). Also, the chronic stimulation of B cell receptors (BCR) by BCR-ligation (anti-IgM Ab, 3 μg/ml, 8 ∼ 12h) significantly upregulated the amplitude of clotrimazole-sensitive current from -11.4±3.1 to -53.1±8.6 pA/pF in Bal-17 cells. In WEHI-231 cells, the effect of BCR-ligation was significantly small (-5.7±1.15 to -9.0±1.00 pA/pF). The differential expression and regulation by BCR-ligation might reflect functional changes in the maturation of B lymphocytes. | - |
dc.format.extent | 6 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | 대한약리학회 | - |
dc.title | Differential functional expression of clotrimazole-sensitive Ca2+-activated K+ current in Bal-17 and WEHI-231 murine B lymphocytes | - |
dc.type | Article | - |
dc.identifier.bibliographicCitation | The Korean Journal of Physiology & Pharmacology, v.10, no.1, pp 19 - 24 | - |
dc.identifier.kciid | ART001023545 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-33645029049 | - |
dc.citation.endPage | 24 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 19 | - |
dc.citation.title | The Korean Journal of Physiology & Pharmacology | - |
dc.citation.volume | 10 | - |
dc.identifier.url | https://scienceon.kisti.re.kr/srch/selectPORSrchArticle.do?cn=JAKO200603039599749&SITE=CLICK | - |
dc.type.docType | Article | - |
dc.publisher.location | 대한민국 | - |
dc.subject.keywordAuthor | B lymphocyte | - |
dc.subject.keywordAuthor | Potassium channel | - |
dc.subject.keywordAuthor | Ca2+−activated K+ channel | - |
dc.subject.keywordAuthor | Clotrimazol | - |
dc.subject.keywordAuthor | WEHI-231 | - |
dc.subject.keywordAuthor | Bal-17 | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
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