Date: 3 months ago   Category: Science

Instant death of a cage was written down on video


Scientists of Stanford University for the first time observed apoptosis — programmable cellular death. Researchers managed to imprint this process by means of fluorescent microscopy. The Science Alert edition reports about it. At apoptosis in a cage the biochemical cascades formed by chains of the enzymes interacting among themselves — каспаз proceed. These proteins destroy a cellular kernel, cytoplasm and other components. As a result the cage breaks up to separate little bodies which are absorbed by macrophages or cages on - to the neighbourhood. Programmable cellular death is started in various alarm ways, and it allows an organism to get rid of the damaged or unnecessary cages. For studying of mechanisms of apoptosis scientists used an ovum of a smooth shportsevy frog (Xenopus laevis). Diameter of an ovum is 1,2 millimeters, and interested researchers how in it signaling is carried out, leading to programmable cellular death. It agrees one of hypotheses, apoptosis extends to all cage in a random way. However some experts assumed that the major role is played by cascades. During the experiment scientists observed distribution of apoptosis in cytoplasm which has been emitted from an ovum and is placed in a tube together with mix of reactants, including green fluorescent proteins, for process visualization. Communication of kaspazny cascades with an apoptosis wave which covered all cage with a constant speed, equal about 30 micrometers in a minute has been shown. The similar picture was observed also in the intact (intact) cages. It is more than important news in Film of Day Telegram-channel. Subscribe!

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