breast cancer

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HOXB7 overexpression may lead triple-negative breast cancer cells to a less aggressive Phenotype

Os genes HOX codificam proteínas do tipo “factores de transcrição” que são de extrema importância durante o desenvolvimento embrionário. No entanto, parecem ter um papel também relevante na vida pós-embrionária e a desregulação da sua expressão está inúmeras vezes associada à progressão tumoral e à resistência terapêutica manifestada por alguns doentes. O gene HOXB7, em particular, desempenha um papel importante na progressão do cancro de mama de uma forma dependente do subtipo molecular.

Interferon-γ stimulates the ASCT2 transporter in breast cancer cells

Presently, breast cancer constitutes the most prevalent cancer in women worldwide, and about 25% of the women with breast cancer also present type 2 diabetes mellitus (T2DM).The metabolic changes characteristic of T2DM have been associated to a higher incidence and progression, worst prognontics and response to therapy. However, the association between breast cancer and type 2 diabetes are complex and remain to be fully established.

Novel anti-DLL1 antibody with anti-tumor efficacy against breast cancer

Over 70% of breast cancers (BC) are estrogen receptor-positive (ER+). The Notch ligand Delta-like 1 (DLL1) is a key player in ER+ BCs development and aggressiveness and its overexpression are associated with poor prognosis. In this study, Portuguese researchers developed a novel anti-DLL1 antibody that inhibited tumor growth and liver metastases in a xenograft mouse model. The data suggests that anti-DLL1 immunotherapy can be a promising strategy for ER+ BC treatment.

 

Authors and Affiliations:

Novo anticorpo com propriedades anti-tumorais para cancro da mama

Mais de 70% dos cancros da mama são positivos para o recetor de estrogénio (ER+ BC). A expressão elevada da proteína DLL1 nestes tumores está associada a maior agressividade e por conseguinte a pior prognóstico. Neste estudo, investigadores portugueses desenvolveram um anticorpo capaz de impedir a formação de metástases hepáticas em modelos animais xenotransplantados. Este estudo sugere a inibição da proteína DLL1 como uma nova abordagem no tratamento de cancros da mama positivos para o recetor de estrogénio.

 

Autores e afiliações:

Innovation in Breast Cancer symposium – Lisbon edition

Virtual event

 

14-15 October, 2021

 

See more informations here: https://www.doctaforum.org/2021/ibc2021-lisbon/

Innovation in Breast Cancer symposium – Lisbon edition

Virtual event

 

14-15 October, 2021

 

See more informations here: https://www.doctaforum.org/2021/ibc2021-lisbon/

Natural killer cells put breast cancer to sleep

Even after apparently successful treatment of primary tumor, some undetectable tumor cells can persist and cause cancer to eventually come back. These cells spread beyond the primary tumor to other organs of the body, where they lay dormant until awakening into deadly metastases.

Unveiling the mechanism of action behind the anti-cancer properties of cannabinoids in ER+ breast cancer cells: Impact on aromatase and steroid receptors

Authors and Affiliations:

Cristina Amaral, Fabien Marc Trouille, Cristina Ferreira Almeida, Georgina Correia-da-Silva, Natércia Teixeira

UCIBIO.REQUIMTE, Laboratório de Bioquímica, Faculdade de Farmácia, Universidade do Porto

 

Abstract:

Unveiling the mechanism of action behind the anti-cancer properties of cannabinoids in ER+ breast cancer cells: Impact on aromatase and steroid receptors

Autores e Afiliações:

Cristina Amaral, Fabien Marc Trouille, Cristina Ferreira Almeida, Georgina Correia-da-Silva, Natércia Teixeira

UCIBIO.REQUIMTE, Laboratório de Bioquímica, Faculdade de Farmácia, Universidade do Porto

 

Abstract:

GMP-grade nanoparticle targeted to nucleolin downregulates tumor molecular signature, blocking growth and invasion, at low systemic exposure