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Evaluation of nicotinamide as an anti-inflammatory and anti-angiogenic agent in uveal melanoma cell lines / Avaliação da nicotinamida como agente anti-inflamatório e anti-angiogênico em linhas celulares de melanoma uveal
Esposito, Evangelina; Aldrees, Sultan; Mastromonaco, Christina; Zoroquiain, Pablo; Vila, Natalia; Logan, Patrick T; Hari, Shriya; Burnier, Miguel N.
  • Esposito, Evangelina; McGill University. Henry C. Witelson Ocular Pathology Laboratory. Montreal. CA
  • Aldrees, Sultan; McGill University. Henry C. Witelson Ocular Pathology Laboratory. Montreal. CA
  • Mastromonaco, Christina; McGill University. Henry C. Witelson Ocular Pathology Laboratory. Montreal. CA
  • Zoroquiain, Pablo; McGill University. Henry C. Witelson Ocular Pathology Laboratory. Montreal. CA
  • Vila, Natalia; McGill University. Henry C. Witelson Ocular Pathology Laboratory. Montreal. CA
  • Logan, Patrick T; McGill University. Henry C. Witelson Ocular Pathology Laboratory. Montreal. CA
  • Hari, Shriya; McGill University. Henry C. Witelson Ocular Pathology Laboratory. Montreal. CA
  • Burnier, Miguel N; McGill University. Henry C. Witelson Ocular Pathology Laboratory. Montreal. CA
Arq. bras. oftalmol ; 80(2): 74-77, Mar.-Apr. 2017. tab
Article in English | LILACS | ID: biblio-838797
ABSTRACT
ABSTRACT

Purpose:

To investigate the effect of nicotinamide on the secretion of pro-an giogenic and pro-inflammatory cytokines in uveal melanoma cell lines.

Methods:

Two human uveal melanoma cell lines (92.1 and OCM-1) were treated with nicotinamide (10 mmol/L) or control media for 48 hours in culture. The su perna tant from each culture was used in sandwich enzyme-linked immuno sorbent assay-based angiogenesis and inflammation arrays to evaluate the effects of exogenously administered nicotinamide on the secretion of a total of 20 pro-an gio genic and pro-inflammatory proteins.

Results:

Seven pro-angiogenic cytokines were detected under control conditions for both uveal melanoma cell lines. Treatment with nicotinamide resulted in a significant decrease in secretion of the following pro-angiogenic cytokines angiogenin, angiopoietin-2, epidermal growth factor, and vascular epithelial growth factor-A in the 92.1 cells; basic fibroblast growth factor in the OCM-1 cells; and placenta growth factor in both cell lines. Among the pro-inflammatory proteins, monocyte chemotactic protein-1 and interleukin-8 were expressed in both untreated cell lines and both were significantly reduced when treated with nicotinamide.

Conclusions:

Results from this in vitro model suggest that nicotinamide may have anti-inflammatory and anti-angiogenic properties, which may open the possibility of using it as a chemopreventive agent for uveal melanoma; however, further studies including animal models are warranted.
RESUMO
RESUMO

Objetivo:

Acredita-se que a nicotinamida (NIC) seja capaz de diminuir a angiogênese induzida pelo fator de crescimento endotelial vascular (VEGF). Investigar os efeitos da nicotinamida sobre a secreção de citocinas pró-angiogênicas e pró-inflamatórias em linhagens de células de melanoma uveal humano (UM).

Métodos:

Duas linhagens de células humanas de UM (92,1 e OCM-1) foram tratadas com NIC (10 mmol/L) ou apenas com meio de cultura por 48 horas. O sobrenadante das culturas obtido após a administração de nicotinamida foi comparado com o sobrenadante das culturas controle quanto à expressão de 20 fatores pró-angiogênicos e pró-inflamatórios, pela técnica de enzyme-linked immunosorbent assay (ELISA).

Resultados:

Sete citocinas pró-angiogênicas foram detectadas nas condições de controle em ambas as linhagens de células de UM. O tratamento com nicotinamida promoveu uma redução significativa da secreção das seguintes citocinas angiogênicas Angiogenina, ANG2, EGF e VEGF-A em células 92.1; bFGF em células OCM-1; PIGF em ambas as linhagens celulares. Quanto às proteínas pró-inflamatórias, a expressão de MCP-1 e IL-8 foi significativamente reduzida com a administração de nicotinamida em relação às culturas de células que não receberam o tratamento.

Conclusões:

Nicotinamida apresenta propriedades anti-inflamatórias e anti-angiogênicas em modelo experimental in vitro. Tais efeitos sugerem a possibilidade de utilizar esta substância na quimioprevenção do UM. Entretanto, estudos com modelos experimentais in vivo são necessários para melhor avaliar o benefício do tratamento do UM com nicotinamida.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Uveal Neoplasms / Cytokines / Niacinamide / Angiogenesis Inhibitors / Melanoma / Anti-Inflammatory Agents Type of study: Prognostic study Limits: Humans Language: English Journal: Arq. bras. oftalmol Journal subject: Ophthalmology Year: 2017 Type: Article Affiliation country: Canada Institution/Affiliation country: McGill University/CA

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Full text: Available Index: LILACS (Americas) Main subject: Uveal Neoplasms / Cytokines / Niacinamide / Angiogenesis Inhibitors / Melanoma / Anti-Inflammatory Agents Type of study: Prognostic study Limits: Humans Language: English Journal: Arq. bras. oftalmol Journal subject: Ophthalmology Year: 2017 Type: Article Affiliation country: Canada Institution/Affiliation country: McGill University/CA