There are prime and secondary
causes of diseases. For example,
the prime cause of the plague is
the plague bacillus, but
secondary causes of the plague
are filth, rats, and the fleas
that transfer the plague bacillus
from rats to man. By the prime
cause of a disease, I mean one
that is found in every case of
the disease.
Cancer, above all other diseases,
has countless secondary causes.
Almost anything can cause cancer.
But, even for cancer, there is
only one prime cause. The
prime cause of cancer is the
replacement of the respiration of
oxygen ... in normal body cells
by fermentation of sugar.
All normal body cells meet their
energy needs by respiration of
oxygen, whereas cancer cells meet
their energy needs in great part
by fermentation. All normal body
cells are thus obligate aerobes,
whereas all cancer cells are
partial anaerobes. From the
standpoint of the physics and
chemistry of life this difference
between normal and cancer cells
is so great that one can scarcely
picture a greater difference.
Oxygen gas, the donor of energy
in plants and animals, is
dethroned in the cancer cells and
replaced by the energy yielding
reaction of the lowest living
forms, namely the fermentation of
sugar.
In every case, during the cancer
development, the oxygen
respiration always falls,
fermentation appears, and the
highly differentiated cells are
transformed into fermenting
anaerobes, which have lost all
their body functions and retain
only the now useless property of
growth and replication. Thus,
when respiration disappears,
life does not disappear, but
the meaning of life disappears,
and what remains are growing
machines that destroy the body in
which they grow.
To prevent cancer it is therefore
proposed first to keep the speed
of the blood stream so high that
the venous blood still contains
sufficient oxygen; second, to
keep high the concentration of
hemoglobin in the blood; third,
to add always to the food, even
of healthy people, the active
groups of the respiratory
enzymes; and to increase the
doses of these groups, if a
precancerous state has already
developed. If at the same time
exogenous carcinogens are
excluded rigorously, then much of
the endogenous cancer may be
prevented today.
These proposals are in no way
utopian. On the contrary, they
may be realized by everybody,
everywhere, at any hour. Unlike
the prevention of many other
diseases, the prevention of
cancer requires no government
help, and not much money.
Many experts agree that one could
prevent about 80% of all cancers
in man, if one could keep away
the known carcinogens from the
normal body cells. But how can
the remaining 20%, the so-called
spontaneous cancers, be
prevented? It is indisputable
that all cancer could be
prevented if the respiration of
body cells were kept intact.
Nobody today can say that one
does not know what the prime
cause of cancer is. On the
contrary, there is no disease
whose prime cause is better
known, so that today ignorance is
no longer an excuse for avoiding
measures for prevention. That the
prevention of cancer will come
there is no doubt. But how long
prevention will be avoided
depends on how long the prophets
of agnosticism will succeed in
inhibiting the application of
scientific knowledge in the
cancer field. In the meantime,
millions of men and women must
die of cancer unnecessarily."
Excerpts from Follow-Up Lecture
by Otto Warburg, Director, Max
Planck-Institute for Cell
Physiology, Berlin-Dahlem
English Edition by Dean Burk,
National Cancer Institute,
Bethesda, Maryland, USA
If a lowered oxygen pressure
during cell growth may cause
cancer, or, more generally, if
any inhibition of respiration
during growth may cause cancer,
then a next problem is to show
why reduced respiration induces
cancer. Since we already know
that with a lowering of
respiration fermentation results,
we can re-express our question:
Why does cancer result if
oxygen-respiration is replaced by
fermentation?
The early history of life on our
planet indicates that life
existed on earth before the
earth's atmosphere contained free
oxygen gas.
The living cells must therefore
have been fermenting cells then,
and, as fossils show, they were
undifferentiated single
cells.
Only when free oxygen appeared in
the atmosphere - some billion
years ago - did the higher
development of life set in, to
produce the plant and animal
kingdoms from the fermenting,
undifferentiated single
cells.
The reverse process, the
dedifferentiation of life, takes
place today in greatest amount
before our eyes in cancer
development, which is another
expression for dedifferentiation.
To be sure, cancer development
takes place even in the presence
of free oxygen gas in the
atmosphere, but this oxygen may
not penetrate in sufficient
quantity into the growing body
cells, or the respiratory
apo-enzymes of the growing body
cells may not be saturated with
the active groups. In any case,
during the cancer development
the oxygen - respiration always
falls, fermentation appears, and
the highly differentiated cells
are transformed to fermenting
anaerobes, which have lost
all their body functions and
retain only the now useless
property of growth. Thus,
when respiration disappears, life
does not disappear, but the
meaning of life disappears, and
what remains are growing machines
that destroy the body in which
they grow.
But why oxygen differentiates and
why lack of oxygen
dedifferentiates? Nobody would
dispute that the development of
plants and animals and man from
unicellular anaerobes is the most
improbable process of all
processes in the world... But
according to the thermodynamics
of Boltzmann, improbable
processes require work to take
place. It requires work to
produce temperature differences
in a uniformly temperatured gas;
whereas the equalization of such
temperature differences is a
spontaneous process that does not
require work. It is the oxygen -
respiration that provides in life
this work, and dedifferentiation
begins at once when respiration
is inhibited in any way. In the
language of thermodynamics,
differentiation represents a
forced steady state, whereas
dedifferentiation - that is,
cancer - is the true equilibrium
state. Or, illustrated by a
picture: the differentiated body
cell is like a ball on an
inclined plane, which, would roll
down except for the work of
oxygen-respiration always
preventing this. If oxygen
respiration is inhibited, the
ball rolls down the plane to the
level of dedifferentiation.
In Summary:
- Impairment of respiration is
more frequent than impairment of
fermentation because respiration
is more complicated than
fermentation.
- The impaired respiration can
be easily replaced by
fermentation, because both
processes have a common catalyst,
the nicotinamide.
- The consequence of the
replacement of respiration by
fermentation is mostly
glycolysis, with death of the
cells by lack of energy. Only if
the energy of fermentation is
equivalent to the lost energy of
respiration, is the consequence
anaerobiosis. Glycolysis means
death by fermentation,
anaerobiosis means life by
fermentation.
- Cancer arises, because
respiration, but not
fermentation, can maintain and
create the high differentiation
of body cells.
The physicist MANFRED VON ARDENNE
... recently discovered that
cancer cells owing to their
fermentation, are more acid -
inside and on their surface -
than normal cells ...
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