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China has made 3 breakthroughs in anti cancer technology. Medical care has risen nearly 4%, ranking first in two cities.

At noon, health care rose 3.67%, still ranked first in the two cities. Happy and healthy. Dong Fu Long , Nine medical treatment , Biolight Take the lead; Huarun Wandong , Sannuo biology , Li Bang instrument , Qianshan medicine machine And so on, all stocks turned red.

At 10:31, health care increased by 3.17%, ranking first in the two cities, led by health, East Fu Long and Po lett; Yuepu medical, Sannuo biology, and Li Bang instruments. Xinhua medical service And so on, the board more than 8 stocks turned red.

Science and Technology Daily reported 25, in order to quickly remove tumor cells, the medical profession usually uses chemotherapy, radiotherapy and other highly effective treatment methods. Recently, the Beijing Institute of genomics of the Chinese Academy of Sciences has worked with University of Chicago to analyze the data of honeycomb sampling and deep gene sequencing of liver cancer. find The level of genetic diversity within the tumor cell population is far greater than expected. This indicates that high dose radiotherapy and chemotherapy based on the body's maximum endurance will not only invalidate, but also contribute to the expansion and development of resistant clones. The relevant research is published online in the proceedings of the National Academy of Sciences.

Tumor heterogeneity is usually one of the main causes of cancer resistance and metastasis. Precision medicine enables the public to place high hopes on the cure of tumors. However, researchers have found that traditional concepts underestimate the heterogeneity and tenacity of the tumor with hundreds of millions of cells, which makes it necessary to re understand the genetic diversity, spatial distribution, and the ability of tumor metastasis and resistance generation.

The researchers estimated by a neutral model that a tumor of about 3.5 cm in diameter carries hundreds of millions of mutations in the coding region of the gene, which is several thousand times higher than the previous estimate. Dr. Ling Shao Ping of the Beijing genome, Chinese Academy of Sciences, said chemotherapy and radiotherapy may kill most of the cancer cells, causing the major cell population (cloning) of the tumor to be greatly weakened. However, because more mutations exist in the tiny cancer cell clones that have not been killed, this makes the cancer cells with specific mutations survive, leaving the control of other major clones on resources. The system produces new resistant tumors (metastasis or relapse) with the proliferation of wildfire and spring breezes.

This study first depicts the spatial cloning structure of tumors, and reveals that the huge genetic diversity of tumor cells is far beyond the estimation of Darwin's evolutionary process. Lv Xuemei, a researcher at the Beijing Genome Institute of the Chinese Academy of Sciences, said that because the evolution of cancer is essentially an evolutionary process, the intersection of evolutionary genetics and clinical medicine will bring more inspiration and answers to clinical medicine.

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