Identification ofCUX1as the recurrent chromosomal band 7q22 target gene in human uterine leiomyoma

2012 ◽  
Vol 52 (1) ◽  
pp. 11-23 ◽  
Author(s):  
Eric F. P. M. Schoenmakers ◽  
Jens Bunt ◽  
Lianne Hermers ◽  
Marga Schepens ◽  
Gerard Merkx ◽  
...  
Author(s):  
Ijeoma Okeigwe ◽  
Serdar Bulun ◽  
Shimeng Liu ◽  
Alfred W Rademaker ◽  
John S Coon V ◽  
...  

Abstract Context Uterine leiomyoma (fibroids) are the most common tumors in women. Recently, perilipin-2 (PLIN2) was identified as a critical target gene of the progesterone receptor; however, its function in the pathogenesis of fibroids is unknown. Objective To determine the function of PLIN2 in leiomyoma cells Design Tissue and primary cells from leiomyoma and myometrium were analyzed. PLIN2 function in leiomyoma was assessed using siRNA. RNA-sequencing was performed to identify genome-wide effects of PLIN2 depletion. Metabolic activity was measured using the Seahorse XF96 Analyzer. Real-time qPCR and immunoblotting were also performed. Setting Laboratory Patients or Other Participants . 41 premenopausal women undergoing surgery for fibroids Intervention(s) None Main Outcome Measure(s) Gene expression, oxygen consumption rate (OCR), extracellular acidification rate (ECAR), and cell proliferation Results PLIN2 gene expression was 2.4-fold lower in leiomyoma compared to adjacent myometrium, suggesting a link between PLIN2 deficiency and fibroids. 3877 genes were differentially expressed after PLIN2 knockdown. Gene Ontology analysis identified metabolism as the second highest biological process affected by PLIN2 depletion (P=1.6E-10). OCR (mitochondrial respiration) and ECAR (glycolysis) were significantly upregulated after PLIN2 knockdown; PLIN2 depleted cells had greater basal metabolic activity (P<.0001) and a higher metabolic stress response (P<.0001). Cell proliferation was also significantly increased after PLIN2 knockdown (P<.05). Conclusions PLIN2 depletion increases mitochondrial respiration and glycolysis, suggesting that PLIN2 is a critical regulator of metabolic function in leiomyoma cells. PLIN2 deficiency also reprograms leiomyoma cells to a pro-proliferative phenotype. These findings introduce metabolomics as a novel area to explore to better understand leiomyoma tumorigenesis.


2020 ◽  
Author(s):  
K Weigert ◽  
O Alejo-Valle ◽  
M Labuhn ◽  
V Amstislavskiy ◽  
S Emmrich ◽  
...  
Keyword(s):  

2016 ◽  
Author(s):  
Bushra Shammout ◽  
Adewonuola Alase ◽  
Miriam Wittmann ◽  
Paul Stewart ◽  
Ana Tiganescu

2020 ◽  
pp. 33-37
Author(s):  
M.A. Flaksenberg ◽  
◽  

The objective: determination of morphofunctional features of leiomatous nodes and endometrium in women with uterine leiomyoma and infertility to restore reproductive function and prevent recurrence of the underlying disease. Materials and methods. In order to restore reproductive function and prevent recurrence of the underlying disease, morphofunctional features of leiomatous nodes and endometrium in women with uterine leiomyoma and infertility were determined. Thirty samples of leiomyomatous nodes and endometrium were examined, among which 15 were obtained from women with multiple uterine leiomyoma and infertility and 15 samples from women with uterine leiomyoma with isolated uterine leiomyoma. During the study, a general-histological method was used for staining with hematoxylin-eosin and picrofuxin by van Gizon, as well as immunohistochemical methods. Histological examination of the endometrium was performed according to conventional protocol, taking into account the day of the menstrual cycle and R.W. Noyes criteria. Results. In the morphological examination of leiomyomatous nodes in the vast majority of cases the presence of uterine leiomyomas of simple and cell types or their combination was established. In women with multiple uterine leiomyoma, simple-type leiomyoma (53.3%) was predominant, and in patients with isolated leiomyoma the signs of cellular uterine leiomyoma (66.7%) were more frequently found. In 80.0% of women with uterine leiomyoma revealed pathology of the endometrium, such as glandular and glandular-fibrous polyps, simple and complex atypical endometrial hyperplasia, which confirms the theory about the only pathogenetic mechanisms of the emergence of hyperplastic processes of female organs. In 66.7% of women with multiple leiomyomas, signs of chronic endometritis have been found, which exacerbates the pathological process and can have a negative impact on the reproductive function, such as secretory endometrial transformation and impaired blastocyst implantation, and explains a much higher percentage of infertility in the group. Conclusion. In women with impaired reproductive function, patients with uterine leiomyoma, it is necessary to conduct a study of the receptivity of the reproductive organs, namely - the endometrium and leiomatous nodes. This will make it possible to use one or another method of treatment in order to restore reproductive function and prevent recurrence of the underlying disease. Keywords: infertility, uterine leiomyoma, endometrium, receptive apparatus.


Diabetes ◽  
2020 ◽  
Vol 69 (Supplement 1) ◽  
pp. 2049-P
Author(s):  
REBECCA K. DAVIDSON ◽  
NOLAN CASEY ◽  
JASON SPAETH

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