People's dreams of eradicating cancer,  may come true if inborn anti-cancer factors in the human  body are restored to function.

   These factors actively work to identify and clear away cancer  cells.

   They are lost at birth resulting in cancer being one of the  world's major causes of death.

   Zhang Yaochuan, a Chinese scientist and director of the  Biological Chemistry Research Institute of the Zhejiang University in east China, announced his findings on human gestation which  will be of great value in anti-cancer research.

   Zhang's research and achievements have created wide interest  here and abroad. He and his colleagues have spent years carrying  out cancer research employing biological and genetic engineering  methods.

   Zhang said a human embryo, formed by the combination of a sperm and an ovum, evolves to be a 3000 to 3500 kg baby within the short period of no more than nine months. Complete genetic information  is released and inherited during this evolutionary period.

   According to Zhang, research into fetal evolution has proved  that cancer genes are active at the same level in an embryo as are other normal genes promoting development of common cells.  

   It is amazing that an embryo can allow normal cells to grow at  a very fast pace, while automatically checking the growth of  cancer genes.

   This fact confirms the existence of anti-cancer factors, which  can differentiate cancer cells from normal cells and also curtail  cancer cell development.

   Zhang said that each of 100,000 factors in an embryo is a  genetic valve key to solve corresponding diseases. In the  embryonic stage, all genetic valves are open and unblocked with  valve keys to keep them functional.

   These keys are lost one by one as a person matures. The problem could be resolved by finding the keys which weed out specific  diseases in the embryonic stage, according to Zhang.

   Cancer cells are groups of out-of-order cellular variants which expand themselves at a rapid rate, yet at a still slower rate than that of embryonic development.

   This suggests that a highly efficient management system is at  work in the embryonic development stage which arranges the orderly growth of cells. Unfortunately the way the system works is not yet understood by modern science and becomes dormant when a baby is  born,

   If the system was reactivated and lost keys were got back,  human beings could regain the ability to control cellular  variation, namely, by controlling cancer cell development and  changing them into cells which do nor harm the human body, the  professor says. 

   If this happens, the treatment of cancer or tumors will be  simplified and doctors will be happy to abandon traditional  measures like chemotherapy which leads to massive destruction of  normal cells and tissues, and sharp degeneration of the human  immune system.

   Zhang and his team are working hard to find the elusive factors through molecular biology and biochemistry.

   He was the first in China to use silkworms as bioreactors to  develop biologically active factor products by using silkworm  embryos as material.

   In addition, Zhang also developed biologically active protein  by using embryos of chickens and testing it on rats and macaques.  The test results show a way of increasing the number of white  blood-cells, prolonging life and lifting life standards of the  test animals

   Zhang's theory and supposition of anti-cancer factors are  certificated with the success of cultivating biologically active  substances by using embryos of silkworms and chickens.

   To finalize his theory, Zhang and his fellows are using embryos of animals like sheep as bioreactors to develop genetic  medicination for the cure of cancer.