Pathogenesis of cancer

Сергей Шалин
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This article is devoted to the pathogenesis of cancer. The processes of cancer cell formation are briefly described.

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Pathogenesis of cancer

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INTRODUCTION

Carcinogenesis or oncogenesis is a multi-stage mechanism of the emergence, growth and development of a malignant process. According to the modern theory of carcinogenesis, the occurrence of a malignant tumor is the result of the sequential accumulation of mutations in the somatic cells of the body that are not inherited. When the number of mutations becomes critical, the formation of a primary malignant stem cell occurs. The weak link of this theory is the absence of a cancer cell precursor cell. In a morphological study, it looks like this: a healthy normal cell, next to it a malignant cell, there is no transitional variant or precursor cell to a cancer cell.


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