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Page 1: Proposal

Background

Page 2: Proposal

Lyssencephaly

•Smooth brain (froom the Greek “lissos” and “enkhapalos”)

•Cerebral cortex scarces of:▫Gyri▫Groove▫Fissures

Page 3: Proposal

•Malformation of the physical structure is because it didn’t developed completely while embryonic development.

•Lack of embryonic development:▫Low blood flow▫Congenic Citomegalovirus (cCMV)▫Genetic mutation (LIS1, XLIS)

Page 4: Proposal

ResearchesMalformations of cortical development in children with congenital cytomegalovirus infection - A study of nine children with proven congenital cytomegalovirus infection

•Development of Lissencephaly in the fetus as direct consequence of early infection.

•Most common vertically transmitted disease ▫rate of the infection ranging:

0.2 to 2.4% in newborn infants 40.000 infants per year

Page 5: Proposal

Chemical remedyOral Hexadecyloxypropyl-Cidofovir Therapy in Pregnant Guinea Pigs Improves Outcome in the Congenital Model of Cytomegalovirus Infection •Alternative orally supply analog of the

existing drug, Cidofovir•Only proved effiency of Guinea Pigs

Page 6: Proposal

Why supply antibodies?

Seroprevalence of cytomegalovirus in-fection in pregnant women and associ-ated role in obstetric complications: a

preliminary study

IgGIgM

Page 7: Proposal

Hypothesis

The augment of antibodies IgG and IgM may reduce the presence of CVM, representing a minor risk to the fetus in developing Lissencephaly.

Page 8: Proposal

Objectives

• Develop a treatment with antibodies against the growth of Citomegalovirus that causes Lyssencephaly• Reduce the CMV presence in the

placenta• Lower the risks of developing

Lissencephaly caused by cCMV.

Page 9: Proposal

Methodology

Page 10: Proposal

Materials

•CMV Pp38 (UL80a), Cytomegalovirus Antigen, Recombinant

•IgM Antibody, mAb, Mouse•Mouse IgG control (Whole Molecule),

Purified•IL-4 Antibody (2G6A8), mAb, Mouse•Mouse IL-28A/B •39 female pregnant Mus Musculus•Image Cytometri

Page 11: Proposal

•Light diagnostics CMV direct Immunofluorescence Assay Kit

•Dextran Leukocyte Separation Kit •Formaldehyde-Noidet P-40•MRI

Page 12: Proposal

Methodology

Page 13: Proposal

Step: Prepare research models

Page 14: Proposal

Prepare research models

•Mice from 12-13 days•Anesthiaze mice•Inject with CMV vector solution with a

glass micropipette•Place pipette for an 30 s and then slowly

withdrawn.

Page 15: Proposal

Research model’s distribution

• Groups:▫ IL 6▫ IL 28▫ IgG▫ IgM

• Sub-groups:▫ A= every week▫ B= every 48 hrs▫ C= every three

days

Mus musculu

s

Group 1

sub-group A

sub-group B

sub-group C

Group 2

sub-group A

sub-group B

sub-group C

Group 3

sub-group A

sub-group B

sub-group C

Page 16: Proposal

Step: Viral presence assays

Page 17: Proposal

Extract serology: CVS

•Placenta is the common path •Chronic Villous Sampling

▫Suction of a tissue from placenta

Page 18: Proposal

Step: ELISPOT

•Quantify presence of IgG and IgM in all experimental groups

•Procedure according to:▫“General ELISPOT procedure” by

abcam.com

Page 19: Proposal

Step: Direct immunofluorescence

•Cualitative presence of IgG and IgM in all experimental groups

•Process according to:▫“Immunostaining of cells in tissue culture”

by ENCORE biotechnology INC.

Page 20: Proposal

Spected results

•ELISPOT will indicate:▫ augment in antibodies in experimental

groups will mean lower presence of CMV

•Direct immunofluorescence:▫Control group will be brighter than

experimental groups will mean high presence of CMV

Page 21: Proposal

Bibliography • Bosnjak VM, Daković I, et al. Malformations of

cortical development in children with congenital cytomegalovirus infection - A study of nine children with proven congenital cytomegalovirus infection. January, 2011. http://www.ncbi.nlm.nih.gov/pubmed/21648339

• Ravo FJ, Bernstein DI, et al. Oral Hexadecyloxypropyl-Cidofovir Therapy in Pregnant Guinea Pigs Improves Outcome in the Congenital Model of Cytomegalovirus Infection. November 15, 2011. http://www.ncbi.nlm.nih.gov/pubmed?term=Oral%20Hexadecyloxypropyl-Cidofovir%20Therapy%20in%20Pregnant%20Guinea%20Pigs%20Improves%20Outcome%20in%20the%20Congenital%20Model%20of%20Cytomegalovirus%20Infection%20

Page 22: Proposal

• Araswathy TS, Az-Ulhusna A, et al. Seroprevalence of cytomegalovirus infection in pregnant women and associated role in obstetric complications: a preliminary study. March, 2011. http://www.ncbi.nlm.nih.gov/pubmed/21710852

• Kaneda K, Kasahara H, et al. Selective Optical Control of Synaptic Transmission in the Subcortical Visual Pathway by Activation of Viral Vector-Expressed Halorhodopsin. April 5, 2011. http://www.ncbi.nlm.nih.gov/pubmed?term=Selective%20Optical%20Control%20of%20Synaptic%20Transmission%20in%20the%20Subcortical%20Visual%20Pathway%20by%20Activation%20of%20Viral%20Vector-Expressed%20Halorhodopsin

• Boeckh, M. and Boivin, G. Quantitation of Cytomegalovirus: Methodologic Aspects and Clinical Applications. Clinical Microbiology Reviews, July 1998, p. 533-554, Vol. 11, No. 3. http://cmr.asm.org/cgi/content/full/11/3/533