FROM EXPERIMENTATION ON ANIMALS TO IN-VIT RO METHODS .1. CELL-CULTURES - LIMITS, ADVANTAGES, PROSPECTS

In vitro methods appeared at the turn of century and are by now extens ively used in fundamental and applied research. The reasons of this de velopment are bound to ethics (protection of laboratory animals) and t o techniques. These methods, especially cell cultures, have limits to be well known, as well as unquestionable advantages. Their value and s cientific interest bear out their preferential use in an experimental protocol.