Abstract:
:To determine the effect of thymosin α1 (Tα1) on the phenotypic and functional maturation of HL‑60 cells, freeze‑thaw antigen‑loaded dendritic cells (DCs) were derived from peripheral blood mononuclear cells (PBMCs) of children with acute lymphoblastic leukemia (ALL). The DCs were generated from the PBMC samples that were collected from the PB of 10 consecutive ALL children. On day 3 of culturing, the cells in the antigen + no Tα1 (AN) and antigen + Tα1 (AT) groups were incubated with 100 µl lysates obtained from freeze‑thaw cycling. After 5 days of incubation, the AT group was administered with 100 ng/ml Tα1. On day 8, the DCs were stained with fluorescein isothiocyanate‑conjugated cluster of differentiation (CD)1a, CD83 and HLA‑DR antibodies and analyzed by flow cytometry. In addition, the killing activity of cytotoxic T lymphocytes (CTLs) from the different groups on wild‑type leukemia cells was measured. The DCs in the AT group exhibited more apparent, characteristic dendritic morphologies than the control and AN group DCs. Furthermore, the lowest expression level of CD1a, and the highest expression of CD83 and HLA‑DR were observed in the AT group when compared with the AN and control groups (P<0.05). The lactate dehydrogenase release assay demonstrated that the killing rate of CTL in the AT group was significantly higher than that in the control and AN groups (P<0.01). Thus, Tα1 may markedly promote the phenotypic and functional maturation of DCs, and may serve as a suitable immunomodulator of DC‑based immunotherapy for treatment of hematological malignancies.
journal_name
Mol Med Repjournal_title
Molecular medicine reportsauthors
Li X,Liu X,Zhao Y,Zhong R,Song A,Sun Ldoi
10.3892/mmr.2015.4153subject
Has Abstractpub_date
2015-10-01 00:00:00pages
6093-7issue
4eissn
1791-2997issn
1791-3004journal_volume
12pub_type
杂志文章abstract::microRNA‑34a (miRNA‑34a) plays an important role in the pathogenesis of leukemia. This study aimed to explore its role in the proliferation of HL‑60 cells and the correlation with some of its predicted target genes: the cyclin‑dependent kinase 4 (CDK4), the oncogene MYB and the silent information regulator 1 (SIRT1). ...
journal_title:Molecular medicine reports
pub_type: 杂志文章
doi:10.3892/mmr.2014.1931
更新日期:2014-04-01 00:00:00
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journal_title:Molecular medicine reports
pub_type: 杂志文章
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journal_title:Molecular medicine reports
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doi:10.3892/mmr.2015.3305
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journal_title:Molecular medicine reports
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Molecular medicine reports
pub_type: 杂志文章
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pub_type: 杂志文章,评审
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Molecular medicine reports
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Molecular medicine reports
pub_type: 杂志文章
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journal_title:Molecular medicine reports
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journal_title:Molecular medicine reports
pub_type: 杂志文章
doi:10.3892/mmr_00000161
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