HeLa strain of human cancer cells

The culture of embryonic fibroblasts is used to obtain enough cells to perform prenatal diagnosis of inherited metabolic diseases (Box 1-D). Tissue culture is easiest with embryonic or cancer cells, but many other tissues can be propagated. However, the cells that grow best and which can be propogated indefinitely are not entirely normal the well-known HeLa strain of human cancer cells which was widely grown for many years throughout the world contains 70-80 chromosomes per cell compared with the normal 46. 

HeLa strain of human cancer cells 30 S ribosomal subunit 26 Helical structure... 

In 1999, Rickards et al. reported the isolation of calothrixins A (377) and B (378) from photoautrophic cultures of Calothrix cyanobacteria (345). These two, novel, pentacyclic carbazole alkaloids contain a quinolino[4,3-fc]carbazole-l,4-quinone framework. Calothrixins A and B inhibit the growth of a chloroquin-resistant strain of the malaria parasite P. falciparum and human HeLa cancer cells (345). 

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