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BETA CELL
REPLICATION AND
MUTAGENESIS
STUDIES IN E coli
CELLS.
Laura Serna Vélez
Medicine Student
FOLDING
FOLDING
INTRODUCTION
“TARGETING A CELL CICLE INHIBITOR PROMOTES
BETA CELL REPLICATION.”
 Journal of clinical investigation.  16  January 2014.
“TARGETING A CELL CICLE INHIBITOR
PROMOTES BETA CELL REPLICATION.”
 Journal of clinical investigation.  16  January 2014.

Beta cells are responsible
for producing the insuline
necesary for glucose entry
into the cell.

In patients with
diabetes, beta cells
don't produce
functional insuline and
this problem can
cause many
alterations in the
organism.
“TARGETING A CELL CICLE INHIBITOR
PROMOTES BETA CELL REPLICATION.”
 Journal of clinical investigation.  16  January 2014
Researchers describe
how in many new borns
the glucose levels were
low, but the number of
beta cells were
elevated. it was
producing much
insulin, making that the
seric levels of glucose
were low.

Beta cells in this new
borns had a supression
of p57, a cell cycle
inhibitor, for that they
could reproduce
rapidly.

Beta cells from donnors
were subjected to gene
therapy were was
supressed the p57.
“TARGETING A CELL CICLE INHIBITOR
PROMOTES BETA CELL REPLICATION.”
 Journal of clinical investigation.  16  January 2014
RESULTS:
After the transplant of the
modified cells; the study
showed that this cells had a
rapid replication and
responded efectively with
glucose.

Modified cells were
transplantated into a
diabetic mice.
STUDENT COMMENT

I think that Its very important
continue with this studies
because in humans the
modified beta cells
replication could improve
the quality of life of many
people with diabetes.
«BMC STUDIES MUTAGENESIS IN RESTING
E COLI CELLS»
January 28, 2014.
 

 
Generally the cells
modify their DNA
in the replication
period.

Researchers of BMC
studied the way that the
cell can generate DNA
breaks when their stay in a
resting state.
The study was realiced in E
coli cells and they found
that this cell can modify
their genetic material
generating DNA breaks
when they are not
replicating their genetic
information

Changes could be
benefficious or could
generate alterations such
cancer, mutations and
antibiotic resistance.
The team
conclude that
after the
replication, the
genetic material
are more
suceptible to
suffer breaks.
STUDENT COMMENT

I think that the significance of
these studies is that in the
future will be able to avoid
some of the mutations and
antibiotic resistance that
affected thepeople now.
MEDICAL UTILITY:
 
MEDICAL UTILITY
“TARGETING A CELL CICLE INHIBITOR
PROMOTES BETA CELL REPLICATION.”

That studies allows us to
expand the expectations
of life of diabetic patients
because from healthy
donors and modification
of the beta cells, people
could restore their
pancreatic function.
MEDICAL UTILITY

In the future scientists
could detect the exact
mechanism of the DNA
breaks to avoid any
type of mutation or
disease that affect
people and correct that
before the birth.
BIBLIOGRAPHY
MARTINEZ S, Lina María; VARGAS G, Natalia; TORO M,
Andrés Eduardo; PAMPLONA S, Ana Paulina, QUEVEDO
O, Esteban. Biología Molecular. 5. ed. Medellín. Colombia.
UPB, Facultad de medicina. 2012. pp 78-84.
 
http://www.ecured.cu/index.php/C
%C3%A9lulas_beta_del_p%C3%A1ncreas
http://medicalxpress.com/news/2014-01-cell-inhibitorbeta-replication.html
http://bionews-tx.com/news/2014/01/28/bcm-studiesmutagenesis-in-resting-e-coli-cells/
Folding biology

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Folding biology

  • 1. BETA CELL REPLICATION AND MUTAGENESIS STUDIES IN E coli CELLS. Laura Serna Vélez Medicine Student
  • 5. “TARGETING A CELL CICLE INHIBITOR PROMOTES BETA CELL REPLICATION.”  Journal of clinical investigation.  16  January 2014.
  • 6. “TARGETING A CELL CICLE INHIBITOR PROMOTES BETA CELL REPLICATION.”  Journal of clinical investigation.  16  January 2014. Beta cells are responsible for producing the insuline necesary for glucose entry into the cell. In patients with diabetes, beta cells don't produce functional insuline and this problem can cause many alterations in the organism.
  • 7. “TARGETING A CELL CICLE INHIBITOR PROMOTES BETA CELL REPLICATION.”  Journal of clinical investigation.  16  January 2014 Researchers describe how in many new borns the glucose levels were low, but the number of beta cells were elevated. it was producing much insulin, making that the seric levels of glucose were low. Beta cells in this new borns had a supression of p57, a cell cycle inhibitor, for that they could reproduce rapidly. Beta cells from donnors were subjected to gene therapy were was supressed the p57.
  • 8. “TARGETING A CELL CICLE INHIBITOR PROMOTES BETA CELL REPLICATION.”  Journal of clinical investigation.  16  January 2014 RESULTS: After the transplant of the modified cells; the study showed that this cells had a rapid replication and responded efectively with glucose. Modified cells were transplantated into a diabetic mice.
  • 9. STUDENT COMMENT I think that Its very important continue with this studies because in humans the modified beta cells replication could improve the quality of life of many people with diabetes.
  • 10. «BMC STUDIES MUTAGENESIS IN RESTING E COLI CELLS» January 28, 2014.    
  • 11. Generally the cells modify their DNA in the replication period. Researchers of BMC studied the way that the cell can generate DNA breaks when their stay in a resting state.
  • 12. The study was realiced in E coli cells and they found that this cell can modify their genetic material generating DNA breaks when they are not replicating their genetic information Changes could be benefficious or could generate alterations such cancer, mutations and antibiotic resistance.
  • 13. The team conclude that after the replication, the genetic material are more suceptible to suffer breaks.
  • 14. STUDENT COMMENT I think that the significance of these studies is that in the future will be able to avoid some of the mutations and antibiotic resistance that affected thepeople now.
  • 16. MEDICAL UTILITY “TARGETING A CELL CICLE INHIBITOR PROMOTES BETA CELL REPLICATION.” That studies allows us to expand the expectations of life of diabetic patients because from healthy donors and modification of the beta cells, people could restore their pancreatic function.
  • 17. MEDICAL UTILITY In the future scientists could detect the exact mechanism of the DNA breaks to avoid any type of mutation or disease that affect people and correct that before the birth.
  • 18. BIBLIOGRAPHY MARTINEZ S, Lina María; VARGAS G, Natalia; TORO M, Andrés Eduardo; PAMPLONA S, Ana Paulina, QUEVEDO O, Esteban. Biología Molecular. 5. ed. Medellín. Colombia. UPB, Facultad de medicina. 2012. pp 78-84.   http://www.ecured.cu/index.php/C %C3%A9lulas_beta_del_p%C3%A1ncreas http://medicalxpress.com/news/2014-01-cell-inhibitorbeta-replication.html http://bionews-tx.com/news/2014/01/28/bcm-studiesmutagenesis-in-resting-e-coli-cells/