scholarly journals 17β-Estradiol Promotes Islet Cell Proliferation in a Partial Pancreatectomy Mouse Model

2017 ◽  
Vol 1 (7) ◽  
pp. 965-979 ◽  
Author(s):  
Tingting Wu ◽  
Jinyong Xu ◽  
Shengchun Xu ◽  
Lianzhong Wu ◽  
Youyu Zhu ◽  
...  
Diabetes ◽  
2019 ◽  
Vol 68 (Supplement 1) ◽  
pp. 110-OR
Author(s):  
SHINSUKE TOKUMOTO ◽  
DAISUKE YABE ◽  
HISATO TATSUOKA ◽  
RYOTA USUI ◽  
MUHAMMAD FAUZI ◽  
...  

Diabetes ◽  
1994 ◽  
Vol 43 (2) ◽  
pp. 263-273 ◽  
Author(s):  
T. C. Brelje ◽  
J. A. Parsons ◽  
R. L. Sorenson

2021 ◽  
Vol 22 (6) ◽  
pp. 2915
Author(s):  
Manuela Cipolletti ◽  
Stefania Bartoloni ◽  
Claudia Busonero ◽  
Martina Parente ◽  
Stefano Leone ◽  
...  

17β-estradiol (E2) exerts its physiological effects through the estrogen receptor α (i.e., ERα). The E2:ERα signaling allows the regulation of cell proliferation. Indeed, E2 sustains the progression of ERα positive (ERα+) breast cancers (BCs). The presence of ERα at the BC diagnosis drives their therapeutic treatment with the endocrine therapy (ET), which restrains BC progression. Nonetheless, many patients develop metastatic BCs (MBC) for which a treatment is not available. Consequently, the actual challenge is to complement the drugs available to fight ERα+ primary and MBC. Here we exploited a novel anti-estrogen discovery platform to identify new Food and Drug Administration (FDA)-approved drugs inhibiting E2:ERα signaling to cell proliferation in cellular models of primary and MBC cells. We report that the anti-fungal drugs clotrimazole (Clo) and fenticonazole (Fenti) induce ERα degradation and prevent ERα transcriptional signaling and proliferation in cells modeling primary and metastatic BC. The anti-proliferative effects of Clo and Fenti occur also in 3D cancer models (i.e., tumor spheroids) and in a synergic manner with the CDK4/CDK6 inhibitors palbociclib and abemaciclib. Therefore, Clo and Fenti behave as “anti-estrogens”-like drugs. Remarkably, the present “anti-estrogen” discovery platform represents a valuable method to rapidly identify bioactive compounds with anti-estrogenic activity.


2011 ◽  
Vol 63 (1) ◽  
pp. 189-194 ◽  
Author(s):  
Kwiecińska Patrycja ◽  
Wróbel Anna ◽  
Ewa Ł. Gregoraszczuk

Antioxidants ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1120
Author(s):  
Dae Woon Choi ◽  
Sun Young Jung ◽  
Gun-Dong Kim ◽  
So-Young Lee ◽  
Hee Soon Shin

Allergic diseases, including atopic dermatitis (AD), induce type 2 helper T (Th2) cell-dominant immune responses. Miquelianin (quercetin 3-O-glucuronide, MQL) is an active compound in Rosae multiflorae fructus extract with anti-allergic properties. Here, we investigate the anti-allergic effects of MQL in an ovalbumin (OVA)-induced Th2-dominant mouse model and the associated mechanisms. Oral MQL suppressed cytokine and IL-2 production and proliferation of Th2 cells and upregulated heme oxygenase-1 (HO-1) in splenocytes. Ex vivo MQL suppressed Th1- and Th2-related immune responses by inhibiting CD4+ T cell proliferation, and upregulated HO-1 in CD4+ T cells by activating C-Raf–ERK1/2–Nrf2 pathway via induction of reactive oxygen species generation. In a trimellitic anhydride-induced AD-like mouse model, both topical and oral MQL ameliorated AD symptoms by suppressing Th2 immune responses. Our results suggest that MQL is a potential therapeutic agent for CD4+ T cell-mediated diseases, including allergic diseases.


2011 ◽  
Vol 253 (3) ◽  
pp. 546-552 ◽  
Author(s):  
Volker Fendrich ◽  
Johannes Rehm ◽  
Jens Waldmann ◽  
Malte Buchholz ◽  
Gerhard Christofori ◽  
...  

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