J 2019

Molecular Links between Central Obesity and Breast Cancer

ZIMTA, A.A., A.B. TIGU, M. MUNTEAN, D. CENARIU, Ondřej SLABÝ et. al.

Základní údaje

Originální název

Molecular Links between Central Obesity and Breast Cancer

Autoři

ZIMTA, A.A. (642 Rumunsko), A.B. TIGU (642 Rumunsko), M. MUNTEAN (642 Rumunsko), D. CENARIU (642 Rumunsko), Ondřej SLABÝ (203 Česká republika, garant, domácí) a I. BERINDAN-NEAGOE (642 Rumunsko)

Vydání

International Journal of Molecular Sciences, Basel, Multidisciplinary Digital Publishing Institute, 2019, 1422-0067

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10608 Biochemistry and molecular biology

Stát vydavatele

Švýcarsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 4.556

Kód RIV

RIV/00216224:14740/19:00112968

Organizační jednotka

Středoevropský technologický institut

UT WoS

000498946100122

Klíčová slova anglicky

breast cancer; abdominal fat; obesity; menopause; hormone dependency; leptin; adiponectin; miRNA; exosomes

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 12. 5. 2020 13:10, Mgr. Pavla Foltynová, Ph.D.

Anotace

V originále

Worldwide, breast cancer (BC) is the most common malignancy in women, in regard to incidence and mortality. In recent years, the negative role of obesity during BC development and progression has been made abundantly clear in several studies. However, the distribution of body fat may be more important to analyze than the overall body weight. In our review of literature, we reported some key findings regarding the role of obesity in BC development, but focused more on central adiposity. Firstly, the adipose microenvironment in obese people bears many similarities with the tumor microenvironment, in respect to associated cellular composition, chronic low-grade inflammation, and high ratio of reactive oxygen species to antioxidants. Secondly, the adipose tissue functions as an endocrine organ, which in obese people produces a high level of tumor-promoting hormones, such as leptin and estrogen, and a low level of the tumor suppressor hormone, adiponectin. As follows, in BC this leads to the activation of oncogenic signaling pathways: NF kappa B, JAK, STAT3, AKT. Moreover, overall obesity, but especially central obesity, promotes a systemic and local low grade chronic inflammation that further stimulates the increase of tumor-promoting oxidative stress. Lastly, there is a constant exchange of information between BC cells and adipocytes, mediated especially by extracellular vesicles, and which changes the transcription profile of both cell types to an oncogenic one with the help of regulatory non-coding RNAs.