Uploaded on May 13, 2020
The effectiveness of obtaining cells from the thawed tissues of the umbilical cord is mainly affected by the cryoprotectant medium, protocol for isolation of cells and the mode of freezing.
Cryopreservation is the Clinical Method of Preserving the Umbilical Cord
Cryopreservation is the Clinical
Method of Preserving the
Umbilical Cord
Stem cell therapy in India
Source of Umbilical Cord Blood
Umbilical cord was at first
discovered in 1974, as the
main source of hematopoietic
stem cells as well as the
progenitor cells. The first
transplantation of the
umbilical cord was done in
1988 for the treatment
Fanconi Anemia in France.
Earlier the tissues of the
umbilical cord were
considered as a waste but in
the past decade, it has been
seen that these tissues can be
used for deriving
mesenchymal stem cells,
from various compartments of
the umbilical cord.
Source of Umbilical Cord Blood
The main disadvantage is
the transient nature of the
tissue of the Umbilical cord
as it is only available for a
short time of period after
postpartum. However,
cryopreservation can be
used for the preservation
of umbilical cord and its
components. Here you can
get the details about the
cryopreservation of the
different types of umbilical
cord vessels.
1. Cryopreservation of Umbilical Cord-derived
vessel
The UC blood vessels are cut
off in an appropriate diameter
without any branches. It
makes the UC derived vessels
as the most effective for the
cryopreservation. The process
of cryopreservation of the
umbilical cord does not infer
the preservation of the
components of the cell.
So, the medium of
cryopreservation is composed
up off saline solution. The
cryopreservation of the cord
blood vessels can be
preserved in the walls of
blood vessels.
2. Cryopreservation of Wharton’s jelly
Wharton’s jelly is a gelatinous
substance which cannot be
found in the human body after
the birth. It helps in protecting
the blood vessels and provides
flexibility to the cord.
It consists of a huge amount
of growth factors and
components of the
extracellular matrix as
collagen, sulfated
glycosaminoglycans, and
hyaluronic acid.
3. Cryopreservation of the UC cellular
component
The process of cryopreservation
allows preservation in both
suspensions as well as whole
tissue fragmentation.
Contemporary cryopreservation
technologies support the long-
term preservation of the cells
that can preserve the adipose
tissue, follicle tissue, fragments
of bone marrow, ovarian and
testicular tissues after thawing.
The umbilical cord tissue must
be processed before the storage
so that it can reduce the time,
expenses of the material help in
storing the cells in natural
environments, and the cells can
be isolated as well as expanded
as per requirements.
4. Prospects of UC banking
UC derived cells are needed for the
treatment of cardiovascular
diseases, failures of skeletal
muscles, neurological autoimmune
disorders. So, there is a huge
demand for the preservation of the
blood vessels, cellular component,
and WJ.
The effectiveness of obtaining cells
from the thawed
tissues of the umbilical cord is
mainly affected by the
cryoprotectant medium, protocol
for isolation of cells and the mode
of freezing.
Different Methods of Processing
cord blood that leads to the
purification of the cord blood
before the preservation of
the final product. Once the
cells are being isolated and
are extracted from the RBCs
and plasma.
They are then mixed with the
cryoprotectant and are
stored in a cryo-bag by a
process known as controlled
freezing. This process is done
for the long-term
preservation of cells so that
they can be used in future
for the
treatment of various kinds of
untreatable diseases.
References:
https://www.cordlifeindia.com/blog/cryopr
eservation-clinical-method-preserving-um
bilical-cord/
https://www.cordlifeindia.com/blog/cord-bl
ood-banking-need-know-preservation-uc-i
mportant/
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