Leukotriene B4 pathway regulates the fate of the hematopoietic stem cells

Jin Woong Chung, Geun Young Kim, Yeung Chul Mun, Ji Young Ahn, Chu Myong Seong, Jae-Hong Kim

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

Leukotriene B4 (LTB4), derived from arachidonic acid, is a potent chemotactic agent and activating factor for hematopoietic cells. In addition to host defense in vivo, several eicosanoids have been reported to be involved in stem cell differentiation or proliferation. In this study, we investigated the effect of LTB4 on human cord blood CD34+ hematopoietic stem cells (HSCs). LTB4 was shown to induce proliferation of HSC and exert anti-apoptotic effect on the stem cells. Blockade of interaction between LTB4 and its receptor enhanced self-renewal of the stem cells. Effect of LTB4 on differentiation of CD34 + HSCs were confirmed by clonogenic assays, and induction of the expression of BLT2 (the low-affinity LTB4 receptor), during the ex vivo expansion was confirmed by reverse transcription? PCR. Our results suggest that LTB4-BLT2 interaction is involved in the cytokine-induced differentiation and ex vivo expansion of hematopoietic stem cells.

Original languageEnglish
Pages (from-to)45-50
Number of pages6
JournalExperimental and Molecular Medicine
Volume37
Issue number1
Publication statusPublished - 2005 Feb 28

Fingerprint

Leukotriene B4
Hematopoietic Stem Cells
Stem cells
Leukotriene B4 Receptors
Stem Cells
Eicosanoids
Fetal Blood
Arachidonic Acid
Reverse Transcription
Cell Differentiation
Transcription
Cell Proliferation
Cytokines
Polymerase Chain Reaction
Assays
Blood

Keywords

  • Apoptosis
  • BLT
  • CD34
  • Cell differentiation
  • Hematopoietic stem cells
  • Leukotriene B
  • Receptors

ASJC Scopus subject areas

  • Biochemistry
  • Genetics

Cite this

Chung, J. W., Kim, G. Y., Mun, Y. C., Ahn, J. Y., Seong, C. M., & Kim, J-H. (2005). Leukotriene B4 pathway regulates the fate of the hematopoietic stem cells. Experimental and Molecular Medicine, 37(1), 45-50.

Leukotriene B4 pathway regulates the fate of the hematopoietic stem cells. / Chung, Jin Woong; Kim, Geun Young; Mun, Yeung Chul; Ahn, Ji Young; Seong, Chu Myong; Kim, Jae-Hong.

In: Experimental and Molecular Medicine, Vol. 37, No. 1, 28.02.2005, p. 45-50.

Research output: Contribution to journalArticle

Chung, JW, Kim, GY, Mun, YC, Ahn, JY, Seong, CM & Kim, J-H 2005, 'Leukotriene B4 pathway regulates the fate of the hematopoietic stem cells', Experimental and Molecular Medicine, vol. 37, no. 1, pp. 45-50.
Chung, Jin Woong ; Kim, Geun Young ; Mun, Yeung Chul ; Ahn, Ji Young ; Seong, Chu Myong ; Kim, Jae-Hong. / Leukotriene B4 pathway regulates the fate of the hematopoietic stem cells. In: Experimental and Molecular Medicine. 2005 ; Vol. 37, No. 1. pp. 45-50.
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