Image by Dr Jon Heras
An illustration of the progression of angiogenesis, which is the physiological process involving the growth of new blood vessels from pre-existing vessels. Tumours cannot grow beyond a few mm due to a lack of oxygen and other nutrients, so they encourage the formation of blood vessels to support their rapid cell division. For this reason, angiogenesis is a fundamental step in the transition of tumors from a dormant state to a malignant one.
Henrietta Lacks’ ‘Immortal’ Cells
A Microscopic View of Henrietta Lacks’ ‘Immortal’ Cells
HeLa cells were the first immortal human cells ever grown in culture and are invaluable to medical researchers
In the image:
1. A HeLa cancer cell dividing.
2. The metaphase stage of a human HeLa cell division.
3. Subspecies of HeLa cells have evolved in labs and some feel that the cell line is no longer human, but a new microbial life form. These cells are shown in green the cytoplasm is red and structures within the cytoplasm are blue.
4. The prophase stage of mitosis in the division of these human HeLa cells.
5. This fluorescence micrograph of a HeLa cell shows the cytoskeletal microfilaments in red and nuclei stain with Hoechst in blue.
Give thanks everyday to Henrietta Lacks’ “Immortal Cells” — my molecular bio professor.
Having one degree in science, and another in healthcare, I have learned about HeLa cells in many a lecture hall. Doesn’t matter how many times and what I already know, though… the story of Henrietta Lacks and HeLa cells never gets old and is always so fascinating to me!