Dimethylaminoparthenolide reduces the incidence of dysplasia and ameliorates a wasting syndrome in HPV16-transgenic mice

• Tipo: Artigo em Revista Científica Internacional
• Data: 2019

Autores

Joana M. O. Santos (Autor) Outra; Alexandra Moreira Pais (Autor) Outra; Tiago Neto (Autor) Outra; Sara Peixoto da Silva (Autor) Outra; Paula A. Oliveira (Autor) Outra; Rita Ferreira (Autor) Outra; Joaquim Mendes (Autor) Outra; Margarida M. S. M. Bastos (Autor) FEUP; Carlos Lopes (Autor) Outra; Fátima Casaca (Autor) Outra; Sandra Silva (Autor) Outra; Christopher Sweeney (Autor) Outra; Rui Medeiros (Autor) Outra; Rui M. Gil da Costa (Autor) FEUP

Revista

Título: Drug Development Research

Vol. 80

Páginas: 824-830

ISSN: 0272-4391

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 4 Citações

Scopus - 6 Citações

Projetos Associados

LEPABE-2-ECO-INNOVATION - LEPABE-2-ECO-INNOVATION

LEPABE - Projeto Estratégico do LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

Outras Informações

ID Authenticus: P-00Q-WP7

DOI: 10.1002/ddr.21565

Abstract (EN): The nuclear factor kappa light chain enhancer of activated B cells (NF-kappa B) has been implicated in the progression of cancers induced by high-risk human papillomaviruses (HPV). In cancer patients, NF-kappa B is also thought to drive a chronic systemic inflammatory status, leading to cachexia. This study addressed the ability of dimethylaminoparthenolide (DMAPT), a water-soluble NF-kappa B inhibitor, to block the development of HPV-induced lesions and wasting syndrome in HPV16-transgenic mice. Mice received DMAPT orally (100 mg/kg/day), once a day, for 6 consecutive weeks. Body weight was monitored weekly along with food and water intake. After 6 weeks the animals were submitted to a grip strength test and sacrificed for specimen collection. Skin samples were analyzed histologically and for expression of NF-kappa B-regulated genes Bcl2 and Bcl2l1. Gastrocnemius muscles were weighted and analyzed for expression of NF-kappa B subunits p50, p52, p65, and Rel-B. DMAPT reduced the incidence of epidermal dysplasia (18.2% versus 33.3% in HPV16(+/-) untreated mice). This was associated with reduced expression of Bcl2 and Bcl2l1 (p = .0003 and p = .0014, respectively) and reduced neutrophilic infiltration (p = .0339). Treated mice also showed partially preserved bodyweight and strength, which were independent of the expression levels of NF-kappa B subunits in skeletal muscle.These results suggest that NF-kappa B inhibition may be a valid strategy against HPV-induced lesions in vivo and warrant further preclinical tests particularly in the set of combination therapies. In addition, the data may support the use of DMAPT to prevent wasting syndrome.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7