A 3-D cell culture system to study epithelia functions using microcarriers

In vitro cell culture models used to study epithelia and epithelial diseases would benefit from the recognition that organs and tissues function in a three-dimensional (3D) environment. This context is necessary for the development of cultures that more realistically resemble in vivo tissues/organs. Our aim was to establish and characterize biologically meaningful 3D models of epithelium. We engineered 3D epithelia cultures using a kidney epithelia cell line (MDCK) and spherical polymer scaffolds. These kidney epithelia were characterized by live microscopy, immunohistochemistry and transmission electron microscopy. Strikingly, the epithelial cells displayed increased physiological relevance; they were extensively polarized and developed a more differentiated phenotype. Using such a growth system allows for direct transmission and fluorescence imaging with few restrictions using wide-field, confocal and Light Sheet Fluorescence Microscopy. We also assessed the wider relevance of this 3D culturing technique with several epithelial cell lines. Finally, we established that these 3D micro-tissues can be used for infection as well as biochemical assays and to study important cellular processes such as epithelial mesenchymal transmission. This new biomimetic model could provide a broadly applicable 3D culture system to study epithelia and epithelia related disorders

Severity of Virilization Is Associated with Cosmetic Appearance and Sexual Function in Women with Congenital Adrenal Hyperplasia: A Cross-Sectional Study

Item does not contain fulltextIntroduction. Women with the classical form of congenital adrenal hyperplasia (CAH) are born with different degrees of virilization of the external genitalia. Feminizing surgery is often performed in childhood to change the appearance of the genitalia and to enable penile-vaginal intercourse later in life. There are suggestions that this affects sexual functioning. Aims. The aim is to study the anatomical, surgical, cosmetic, and psychosexual outcomes in women with CAH. Methods. Forty women with CAH, aged over 15 years, from two referral centers for management of Disorders of Sex Development in the Netherlands were included. Physical and functional status were assessed by a gynecological interview and examination. Sexual functioning was assessed with the Female Sexual Function Index and Female Sexual Distress Scale-Revised scales and compared with a reference group. Mean Outcome Measures. Surgery performed, anatomy, cosmetic score, sexual function and distress. Results. Thirty-six of the 40 women had undergone feminizing surgery; 25 women (69%) underwent more than one operation. Resurgery was performed in seven of the 13 (54%) women who had had a single-stage procedure. Anatomical assessment showed reasonable outcomes. Multiple linear regression showed that only level of confluence had a significant effect on cosmetic outcome, the impact depending on the number of surgeries performed. Cosmetic evaluations did not differ between the women and the gynecologists. Only 20 women had experience of intercourse. Eight women reported dyspareunia; seven women reported urinary incontinence. The women's perceived sexual functioning was less satisfactory than in the reference group, and they reported more sexual distress. Conclusion. The level of confluence was the major determinant for cosmetic outcome; the impact depended on the number of surgeries performed. Fifty-four percent of the women required resurgery after a single-stage procedure in childhood. Anatomical assessment showed reasonable outcomes. The women evaluated their sexual functioning and functional outcome less favorable than the reference group, and they experienced less often sexual intercourse. van der Zwan YG, Janssen EHCC, Callens N, Wolffenbuttel KP, Cohen-Kettenis PT, van den Berg M, Drop SLS, Dessens AB, Beerendonk C. Severity of virilization is associated with cosmetic appearance and sexual function in women with congenital adrenal hyperplasia: A cross-sectional study. J Sex Med 2013;10:866-875