Role of lipoxin A 4 in the cell-to-cell interaction between all-trans retinoic acid-treated acute promyelocytic leukemic cells and alveolar macrophages

Wen Hui Tsai, Chung Hung Shih, Hung Yi Wu, Hong Yu Chien, Yee Chen Chiang, Shu Lien Lai, Shau Chieh Hsu, Yu Ru Kou, Hui Chi Hsu

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Differentiation therapy with all-trans retinoic acid (ATRA) has been used successfully to treat acute promyelocytic leukemia (APL), but such treatment also causes differentiation syndrome (DS) by inducing APL cell infiltration into alveolar spaces. The mechanism underlying the clearance of infiltrated APL cells has not been investigated in detail. Lipoxin A 4 (LXA 4) is an important anti-inflammatory mediator during the resolution of inflammation. In this study, the role of LXA 4 in the cell-cell interaction between alveolar macrophages (AMφ{symbol}; NR8383 cells) and APL NB4 cells was investigated and found that conditioned medium (CM) harvested from ATRA-treated NR8383 (ATRA-NR8383) cells was able to induce the transmigration of ATRA-NB4 cells. However, the pro-migratory activity of CM was attenuated progressively when ATRA-NR8383 cells were co-cultured with increased cell dosages of apoptotic NB4 cells. A significantly higher amount of LXA 4 was released into the CM by ATRA-NR8383 cells when they were co-cultured with apoptotic ATRA-NB4 cells. Expression of a receptor for LXA 4 (ALX/FPR2) was enhanced in both ATRA-NB4 cells and ATRA-NR8383 cells. Exogenous LXA 4 treatment was able to inhibit the transmigration of ATRA-NB4 cells and induce the phagocytic clearance of apoptotic cells by ATRA-NR8383 cells. The anti-migratory activity of exogenous LXA 4 was attenuated by pre-treating ATRA-NB4 cells with an ALX/FPR2 inhibitor. We conclude that AMφ{symbol}-derived LXA 4 plays an important role in the interaction between AMφ{symbol} and APL cells and that this contributes to clearance of apoptotic APL cells.

Original languageEnglish
Pages (from-to)1123-1129
Number of pages7
JournalJournal of Cellular Physiology
Volume227
Issue number3
DOIs
Publication statusPublished - May 12 2011

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Lipoxins
Alveolar Macrophages
Tretinoin
Cell Communication
Acute Promyelocytic Leukemia
Conditioned Culture Medium
Infiltration

ASJC Scopus subject areas

  • Clinical Biochemistry
  • Cell Biology
  • Physiology

Cite this

Role of lipoxin A 4 in the cell-to-cell interaction between all-trans retinoic acid-treated acute promyelocytic leukemic cells and alveolar macrophages. / Tsai, Wen Hui; Shih, Chung Hung; Wu, Hung Yi; Chien, Hong Yu; Chiang, Yee Chen; Lai, Shu Lien; Hsu, Shau Chieh; Kou, Yu Ru; Hsu, Hui Chi.

In: Journal of Cellular Physiology, Vol. 227, No. 3, 12.05.2011, p. 1123-1129.

Research output: Contribution to journalArticle

Tsai, Wen Hui ; Shih, Chung Hung ; Wu, Hung Yi ; Chien, Hong Yu ; Chiang, Yee Chen ; Lai, Shu Lien ; Hsu, Shau Chieh ; Kou, Yu Ru ; Hsu, Hui Chi. / Role of lipoxin A 4 in the cell-to-cell interaction between all-trans retinoic acid-treated acute promyelocytic leukemic cells and alveolar macrophages. In: Journal of Cellular Physiology. 2011 ; Vol. 227, No. 3. pp. 1123-1129.
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abstract = "Differentiation therapy with all-trans retinoic acid (ATRA) has been used successfully to treat acute promyelocytic leukemia (APL), but such treatment also causes differentiation syndrome (DS) by inducing APL cell infiltration into alveolar spaces. The mechanism underlying the clearance of infiltrated APL cells has not been investigated in detail. Lipoxin A 4 (LXA 4) is an important anti-inflammatory mediator during the resolution of inflammation. In this study, the role of LXA 4 in the cell-cell interaction between alveolar macrophages (AMφ{symbol}; NR8383 cells) and APL NB4 cells was investigated and found that conditioned medium (CM) harvested from ATRA-treated NR8383 (ATRA-NR8383) cells was able to induce the transmigration of ATRA-NB4 cells. However, the pro-migratory activity of CM was attenuated progressively when ATRA-NR8383 cells were co-cultured with increased cell dosages of apoptotic NB4 cells. A significantly higher amount of LXA 4 was released into the CM by ATRA-NR8383 cells when they were co-cultured with apoptotic ATRA-NB4 cells. Expression of a receptor for LXA 4 (ALX/FPR2) was enhanced in both ATRA-NB4 cells and ATRA-NR8383 cells. Exogenous LXA 4 treatment was able to inhibit the transmigration of ATRA-NB4 cells and induce the phagocytic clearance of apoptotic cells by ATRA-NR8383 cells. The anti-migratory activity of exogenous LXA 4 was attenuated by pre-treating ATRA-NB4 cells with an ALX/FPR2 inhibitor. We conclude that AMφ{symbol}-derived LXA 4 plays an important role in the interaction between AMφ{symbol} and APL cells and that this contributes to clearance of apoptotic APL cells.",
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