HeLa Cells, Part 1: Origins
The
1950’s was a time when ideas like patient consent didn’t exist, writes Rebecca
Skloot in The
Immortal Life of Henrietta Lacks. In fact:
“Many scientists
believed that since patients were treated for free in public wards, it was fair
to use them as research subjects as a form of payment.”
Johns Hopkins’
views on the topic were no different. So they used to pass on cells from their
all too many black, indigent patients to researchers. Henrietta Lacks was one
of their patients: black, indigent and with cervical cancer.
This
was also an era when scientists had no way to grow/keep alive human cells in
culture. Lacks’ cells came to a researcher named George Gey. Voila!
“(Her cells) were
different: they reproduced an entire generation every twenty-four hours, and
they never stopped. They became the first
immortal human cells ever grown in a laboratory.”
Unlike
other cells, which either didn’t grow at all, or only for a few generations.
Gey
realized a possible use immediately: they would help in the study of cancerous
cells, perhaps help in the search for ways to damage or destroy them:
“To help make that
happen, Gey began sending Henrietta’s cells to any scientist who might use them
for cancer research.”
Following
convention, the cells came to be called by the initials of the person they came
from: the HeLa cells. Everyone Gey sent them to could see their worth: they
survived in culture, and they grew at “mythological” speed. Ergo:
“Those researchers
gave them to more researchers, who gave them to still more.”
Soon
the cells were used in research way beyond cancer. They were used to test cell
reaction to “toxins, radiation and infections”. And injected into rats to
understand immune suppression. And if the cells died in the process, well:
“Scientists could
go back to their eternally growing HeLa stock and start over.”
Wait a
minute. If HeLa cells were cancerous, did it make sense to use them as proxies
for research of normal cells?
“Despite being
cancerous, HeLa still shared many basic characteristics with normal cells:
…they communicated with one another like normal cells… they expressed and
regulated them… and they were susceptible to infections.”
Conversely,
being cancerous cells had its advantages:
“HeLa cells grew
much faster than normal cells, and therefore produced faster results. HeLa was a
workhorse: it was hardy, it was inexpensive, and it was everywhere.”
All of
this explains what came out from all the HeLa research.
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