From the Introduction. Tumors have been studied from many standpoints and yet there is little exact knowledge concerning the essential, or basic conditions that determine their incidence, progress and proliferative capacities, or of the factors that govern the morphology, growth habits and capacity, and the arrangement and differentiation of their structural elements. It is our purpose to discuss in the following pages the results of a study of certain aspects of the biology of tumor cells and to correlate them with ...
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From the Introduction. Tumors have been studied from many standpoints and yet there is little exact knowledge concerning the essential, or basic conditions that determine their incidence, progress and proliferative capacities, or of the factors that govern the morphology, growth habits and capacity, and the arrangement and differentiation of their structural elements. It is our purpose to discuss in the following pages the results of a study of certain aspects of the biology of tumor cells and to correlate them with certain recently established facts concerning the biology of cells in general, and especially those whose life histories are best known, namely, certain protozoa, sex cells, thymus cells, and certain functionally active metazoan cells, such as gland, ganglion and muscle cells. These various kinds of cells possess many attributes in common. Protozoa, sex cells and tumor cells are capable under certain circumstances of unlimited growth, and both tumor cells and ova may survive the host from whom they spring and in whom they temporarily reside, and, further, each may live and grow within certain limits after transplantation. R. Hertwig (1904) has compared tumor cells in their growth habits to a colony of protozoa, and another zoologist, Moroff (1908), has pointed out certain close resemblances between protozoa and sex cells. The growth, multiplication and fate of protozoa and of sex cells may be modified experimentally in various ways, and, under these conditions, may exhibit certain variations in their physiology and morphology, as well as certain regulatory phenomena not always so evident in the normal state. As we shall show, tumor cells may and often do give evidence of the same attributes, and are governed in general by the same laws. In order that the facts which we have established and the conclusions to be drawn therefrom may be clearly understood and correlated, it is necessary briefly to review the structure of protoplasm and nucleus, the relation of cell structure to function and certain other evidences of differentiation, depression, physiological degeneration and death of cells, the morphological and other changes in nucleus and cytoplasm in physiological degeneration and in recovery therefrom, the nucleus-plasma relation and its importance in cell life; and, finally the regulatory processes of protozoa, of sex cells, and of certain tissue cells.....
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Add this copy of Studies in the Biology of Tumor Cells to cart. $54.95, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2016 by Palala Press.
