| abstract |
The present invention discloses a lung cancer diagnosis biological agent, which is formed by immobilizing lung cancer-specific targeting bacteria with paraformaldehyde, wherein the lung cancer-specific targeting bacterial surface presents a polypeptide having a sequence represented by SEQIDNo.1, the lung cancer-specific targeting bacteria can express GFP protein, the lung cancer-specific targeting bacteria are formed by transforming an expression carrier into a bacterial body, the expression carrier contains specific targeting polypeptide gene and GFP gene, and can express a specific targeting polypeptide and GFP protein, and the specific targeting polypeptide sequence is represented by SEQIDNo.1. The present invention further provides a preparation method of the lung cancer diagnosis biological agent, and an application of the lung cancer diagnosis biological agent in lung cancer diagnosis kits. |