Unjustly forgotten scientist Wacław Mayzel (1847-1916)-co-discoverer of somatic mitosis.

Descriptions of somatic cell divisions were made as early as the eighteenth and nineteenth centuries with varying degrees of accuracy. In this paper, we would like to present a forgotten Polish scientist Waclaw Mayzel (1847-1916), who described somatic mitosis in the corneal epithelium of the frog in 1875 almost simultaneously with the recognized discoveries of animal mitosis by Otto Bütschli and plant mitosis by Eduard Strasburger.

Estimation of interaction between human keratinocytes and xenogenic collagen in vitro.

This paper describes the interaction observed between human keratinocytes and xenogenic collagen in vitro modified by HCl. Human keratinocytes were cultivated for 3-10 days, on modified and control support. Their growth, morphology and interaction with support were analyzed.

Osteogenic cell contact with biomaterials influences phenotype expression.

Unlabelled: Relationship between (1) osteoblast adhesion and spreading, and (2) phenotype expression was investigated. Cellular adhesion and spreading were estimated after short time (24 h), whereas proliferation and other osteoblast functions--after 7 days. Primary human osteogenic cells were seeded on the samples of titanium (T), surgical steel (S) and tissue culture polystyrene (PS), and incubated at 37 degrees C.

Experimental model for observation of micromotion in cell culture.

It is known that the micromotion between implant and bone inhibits direct bone growth either on or into implant surfaces in vivo. Nevertheless, biocompatibility tests in vitro of biomaterials for bone/implant interfaces are mainly performed under static conditions. This work describes a dynamic, in vitro experimental simulation of the effect of mutual, small-scale implant surface-tissue displacement on adhered cells.

Cell and tissue preservation and storage for transplantation. Present and future.

Historical remarks and data concerning the present status of tissue preservation and storage are presented. Even though, the need for preserved tissue allografts is still very high and tissue bank services are very popular, the opinion is expressed that the future of tissue banking may be correlated with organ and tissue engineering.

Stem cell research as a base for reconstructive medicine.

Stem cell research seems now to reach important progress in biomedicine, giving promising perspective for clinical implementation. The review of stem cell research is presented including origin, content in various organs, harvesting, preservation and storage. Some examples of results achieved in stem cell research including auto- and allotransplantion of stem cells are given.