DNAJA4 deficiency enhances NF-kappa B-related growth arrest induced by hyperthermia in human keratinocytes.
J Dermatol Sci
; 91(3): 256-267, 2018 Sep.
Article
em En
| MEDLINE
| ID: mdl-29807809
ABSTRACT
BACKGROUND:
Hyperthermia is an effective treatment against cancer and human papillomavirus (HPV) infection. Previous studies have shown that heat shock proteins are crucial to the action of hyperthermia.OBJECTIVES:
To examine the effects of hyperthermia in combination with DNAJA4-deficiency on human keratinocytes and Condyloma acumunatum (CA) tissues.METHODS:
HaCaT cells were subjected to 44°C (compared to 37°C) waterbath for 30min for stimulation. Foreskin or CA tissues obtained from patients undergoing circumcision or pathological examination were bisected and subjected to similar treatments. DNAJA4-knockout (KO) HaCaT cells were generated with CRISPR/Cas9 technology. mRNA and protein expressions were determined using rt-qPCR and western-blotting. Cell cycle distribution, apoptosis and senescence were analyzed by flow cytometry.RESULTS:
DNAJA4 was induced in HaCaT cells, foreskin and CA tissues subjected to hyperthermia at both transcriptional and translational levels. NF-kB,3 was activated by hyperthermia in HaCaT cells, and further enhanced by DNAJA4-deficiency. Transcription of TNF-α4; IL-1B,5 TNFAIP36 and IL-87 were induced in HaCaT cells subjected to hyperthermia. DNAJA4-knockout promoted transcriptions of TNF-α and IL-1B, whereas decreased that of TNFAIP3 and IL-8. Reduced cell survival, proliferation and viability were demonstrated using flow cytometry and MTS assays. Furthermore, NF-kB inhibitors reversed most of the phenotypes observed.CONCLUSIONS:
Hyperthermia reduced HaCaT cell proliferation and promoted cytokine expressions responsible for anti-viral activity, mainly through a NF-kB dependent pathway. DNAJA4-deficiency enhanced the activation of NF-kB by hyperthermia in HaCaT cells, indicating that DNAJA4 may be a promising therapeutic target for use in the treatment of cutaneous HPV infections.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Condiloma Acuminado
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Queratinócitos
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NF-kappa B
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Resposta ao Choque Térmico
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Proliferação de Células
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Proteínas de Choque Térmico HSP40
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Pontos de Checagem do Ciclo Celular
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Hipertermia Induzida
Limite:
Humans
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article