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논문 기본 정보

자료유형
학술저널
저자정보
Hyo-Min Park (Konkuk University) Jae-Young Park (Konkuk University) Na-Yeon Kim (Konkuk University) Hyemoon Kim (Boson Bioscience) Hong-Gyum Kim (Boson Bioscience) Dong-Ju Son (Chungbuk National University) Jin Tae Hong (Chungbuk National University) Do-Young Yoon (Konkuk University)
저널정보
대한면역학회 Immune Network Immune Network Vol.24 No.3
발행연도
2024.6
수록면
90 - 103 (14page)

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초록· 키워드

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The tumor microenvironment (TME) is formed by several immune cells. Notably, tumorassociated macrophages (TAMs) are existed in the TME that induce angiogenesis, metastasis, and proliferation of cancer cells. Recently, a point-mutated variant of IL-32θ was discovered in breast cancer tissues, which suppressed migration and proliferation through intracellular pathways. Although the relationship between cancer and IL-32 has been previously studied, the effects of IL-32θ on TAMs remain elusive. Recombinant human IL-32θ (rhIL-32θ) was generated using an Escherichia coli expression system. To induce M0 macrophage polarization, THP-1 cells were stimulated with PMA. After PMA treatment, the cells were cultured with IL-4 and IL-13, or rhIL-32θ. The mRNA level of M1 macrophage markers (IL-1β, TNFα, inducible nitric oxide synthase) were increased by rhIL-32θ in M0 macrophages. On the other hand, the M2 macrophage markers (CCL17, CCL22, TGFβ, CD206) were decreased by rhIL-32θ in M2 macrophages. rhIL-32θ induced nuclear translocation of the NF-κB via regulation of the MAPK (p38) pathway. In conclusion, point-mutated rhIL-32θ induced the polarization to M1-like macrophages through the MAPK (p38) and NF-κB (p65/p50) pathways.

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ABSTRACT
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
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