Nowadays, people's perception of terminal illness may only be cancer. In this puzzle that modern medicine cannot solve, what everyone can do is prevention, which also corresponds to the saying that not getting sick is the best way to treat diseases. I believe everyone understands the truth behind this statement. As long as one gets sick, it will have a certain impact on the body. Let's take a look with the editor at the relevant information on cancer antigens.
What is carcinoembryonic antigen
1. Carcinoembryonic antigen (CEA) is a tumor associated antigen first extracted by Gold and Freedman from colon cancer and embryonic tissues in 1965. It is an acidic glycoprotein with human embryonic antigen characteristics, present on the surface of cancer cells differentiated from endodermal cells, and is a structural protein of the cell membrane. Formed in the cytoplasm, secreted by the cell membrane to the extracellular space, and then entering the surrounding body fluids. Therefore, it can be detected from various body fluids and excreta such as serum, cerebrospinal fluid, breast milk, gastric juice, pleural and peritoneal fluids, urine, feces, etc.
2. In the past, CEA was used as a specific marker for early diagnosis of colon cancer and rectal cancer. Through a lot of clinical practice, it was found that CEA values of gastrointestinal malignancies can be increased, as well as in the serum of breast cancer, lung cancer and other malignancies. Therefore, carcinoembryonic antigen is a broad-spectrum tumor biomarker. Although it cannot be used as a specific indicator for diagnosing a certain malignant tumor, it still has important clinical value in the differential diagnosis, disease monitoring, and efficacy evaluation of malignant tumors.
What is high carcinoembryonic antigen
The level of carcinoembryonic antigen is related to the following factors: it is related to the early, middle, and late stages of cancer, and the value of carcinoembryonic antigen increases in the later stages, but the positivity rate is not very high. Related to tumor metastasis, the concentration of carcinoembryonic antigen also increases after metastasis. Related to the tissue type of cancer, adenocarcinoma is the most sensitive, followed by squamous cell carcinoma and poorly differentiated cancer. This indicates that carcinoembryonic antigen is a differentiation antigen, and the higher the degree of differentiation, the higher the positivity rate. Related to the improvement of the condition, the concentration of serum carcinoembryonic antigen decreases when the condition improves, and increases when the condition worsens. Continuous follow-up detection of carcinoembryonic antigen can be used for efficacy observation and prognosis judgment after malignant tumor surgery, as well as for efficacy observation of chemotherapy patients.
The above is the information compiled by the editor on cancer antigens, which I believe will be of great help to everyone. In fact, the human body is a very magical system. As long as bacteria appear, they will produce certain antibodies. That is to say, if you have cancer, the cancer antigens in the body will increase. This is also a medical method for testing human diseases. I hope these knowledge provided by the editor will be useful to everyone.
