6533b7dcfe1ef96bd1271fba

RESEARCH PRODUCT

Optimized culture conditions for tissue explants of uterine leiomyoma

C RuesterA DarwishGiuseppe Filiberto VercellinoUta ReicheltA. FiebitzVito ChianteraAchim SchneiderM FritschSylvia Mechsner

subject

medicine.medical_treatmentCulture Media; Epidermal Growth Factor; Estradiol; Female; Humans; Immunohistochemistry; Leiomyoma; Progesterone; RNA Messenger; Real-Time Polymerase Chain Reaction; Uterine NeoplasmsBiologyReal-Time Polymerase Chain ReactionGeneral Biochemistry Genetics and Molecular BiologyAndrologyTissue culturemedicineHumansRNA MessengerUterine NeoplasmProgesteroneUterine leiomyomaEpidermal Growth FactorEstradiolLeiomyomaGrowth factorMyometriummedicine.diseaseImmunohistochemistrySettore MED/40 - Ginecologia E OstetriciaCulture MediaLeiomyomaHormone receptorUterine NeoplasmsFemaleEx vivoHuman

description

Background Uterine leiomyomas are the most common benign tumours in women, which arise from smooth muscle cells of the uterine myometrium and usually are multicentric. In spite of their frequency pathogenesis is widely unknown, mainly due to the absence of a suitable model system. We describe the systematic optimization of culturing leiomyoma tissue explants in an economical and effective ex vivo system. Methods Different concentrations of oxygen, different media, sera, hormones, and growth factor supplements were tested. Immunohistochemical stainings with antibodies against hormone receptors as well as specifying proliferation and apoptotic indices and real-time PCR were performed. Results Main parameters for culturing myoma tissue explants were tested for finding an optimal protocol. Standard medium D-MEM-F12 in combination with the use of horse serum in a reduced concentration of 1% turned out to be optimal for these tissue cultures as well as the addition of estradiol and epidermal growth factor EGF to media. Reduced oxygen content in the incubator air showed no positive effect. Conclusions For culturing tissue explants of uterine leiomyoma several conditions were optimized. The established tissue culture model allows examining the effects of known and potential therapeutic substances and the influence of immune competent cells in the process of tumour formation to find new targets for medical treatment.

10.7754/clin.lab.2012.111117http://hdl.handle.net/10447/179361