Discover : The pregnant woman can pass to suffer from cancer to the foetus through the placenta

Discover : The pregnant woman can pass to suffer from cancer to the foetus through the placenta
Www.chinanews.com 10 The electricity, according to Hong Kong of of moon 14>Invoke the intersection of dispatch from foreign news agency and report 14, American the intersection of national academy of sciences and institute one discover in the publication, because of one gene mutation of cancer cell, suffer from the women of cancer in rare cases during being pregnant, can penetrate placenta cancer " L Infect " R Give to foetuses, study and untie and perplex scientist's mystery of a century.
In order to study how the cancer cell crosses the placenta protective screen, the scientist passes foetuses, find out some evidences to that outside cells can be immune. They have studied the baby's cancer cell gene, and found one lacks sudden change - -Distinguish cancer cell status DNA disappear,cancer cell just like " L Stealthy " ,So succeed in avoiding the ears and eyes of foetus' immune system.
The data reveal, only 1 of mother's pregnant chance of contracting cancer, mother and child situation of suffering from the same cancer are more rare, only about 30 so far Example. The biological theory has been thinking all the time, even a cancer cell can cross the placenta protective screen, also will be repelled and destroyed by the baby's immune system, but this kind of theory is broken now.
Overthrow statement of preventing miscarriage of the placenta
Greaves of the research center of London University's cancer and doctor of Japan find, one 28 year old Japanese know oneself suffer from cancer, in the last month such as woman such as birth such as natural labor pregnant mother have, mother makes a definite diagnosis of and suffers from blood cancer in latter stage, end and pass away in postpartum several weeks.
The baby girl thereafter also verifies that suffers from lymphoma, though two people suffer from different cancers, but both have the same mutation cancer genes on two people's cancer cell " BCR-ABL1" . This shows, this baby girl 11 months old can not suffer from this kind of leukemia by oneself, the cancer cell stems from mother.
Professor Greaves claims, scientific research personnel and medical expert have been sure all the time the placenta can protect foetuses, so it is impossible to assume the cancer cell and spread the foetus. But this research has overthrown this kind of statement .
Blood cancer and skin carcinoma are a main fact
But Greaves emphasizes, the pregnant woman's chance to pass the cancer cell to the foetus is quite little. The experts of oncology department of this harbour say, the cancer cell gene makes a variation, the situation spread to the foetus by the mother's body, Hong Kong has not happened, foreign known case, it is mainly blood cancer and skin cancer, because these cancer cells are apt to make a variation .
Johnson, professor of research center of carcinomatosis writes articles to point out in the newspapers: " There is more situation that the cancer cell appears than what we imagined, probably we will always produce some cancer cells, but is eliminated by the immune system finally. Current we will do, will study how to make the immune system recognize all cancer cells. "
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