The Los Angeles Times reported that an international team led by the University of California, San Francisco observed and analyzed the infection of the new coronavirus through an electron microscope and found that the infected human cells would grow tentacle-like spikes ” filamentous pseudopods . ” The research team said that the new coronavirus seems to use these filaments or filopodia to replenish new cells and increase the efficiency of infection in the human body .
Scientists have so far believed that the new mode of transmission of coronavirus with other viruses, is through ” attachment ” and then a lot of copy (first attached to the cell surface of healthy cells, then as ” hijacking ” like, hostage normal function of cells, making it Become a ” factory ” for virus replication ). However, the discovery of filopodia indicates that the new coronavirus has evolved and various methods have been developed to ensure that it can be quickly transmitted between cells .
Nevan Krogan , a professor of cell and molecular pharmacology at the University of California , who led the research, said that the new coronavirus has many characteristics that do not meet the expectations of scientists. He added: “The virus is terrible. Before it kills the cell, it uses other mechanisms to infect other cells. “
Some viruses (such as HIV and smallpox) can also spread the virus to the body through ” filamentous pseudopodia ” , but Crogan’s finger pneumonia can grow ” tentacles ” so quickly and in large numbers that is very unusual, and ” tentacles ” ” The shape of a tree trunk extending outwards (branch tentacles from the cell) is also very unusual .
Columbia University microbiologistStephen Goffadvises caution,“tentacles” may not necessarily be the second mode of transmission of the new coronavirus. He admits, the findings strongly suggest “filopodia in a way to enhance the ability of the virus-infected cells“,“but we do not know which (of infection) stages are affected by these” strange bump “, and find out It will be very interesting“. The above research has been published in the authoritative academic journal “Cell” (Cell). The research team believes that the research results will help improve the treatment of pneumonia.