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Biotechnology related activities at the Institute of Experimental Medicine, Hungarian Academy of
Sciences( IEM-HAS) Budapest, Hungary
Medical Gene Technology Division
GÁBOR SZABÓ MD, [email protected]
May 3, 2007
www.koki.hu
mechanisms of brain diseases
• neurodegenerative disorders
• epilepsy• anxiety• depression• stress
physiological and diseased brain functioning & development from genes to behavior
physiological and diseased brain functioning & development from genes to behavior
therapymedicine
basic applied research
pharmaceutical industry
IEM-HAS is the only research institution in Hungary dedicated exclusively to medical research. Its activity is focused on basic biomedical research, primarily in the field of Neuroscience.
• joint major national research and development grants• contract research and development initiated by industry• contract research and development based on
discoveries by the institute
Applied and translational research and development
IEM-HAS Pharmaceutical industry
• target identification, characterization and validation• drug efficacy tests• uncovering mechanisms of drug action
Joint efforts
goals
formsfor brain diseases
ENDOCRINE NEUROBIOLOGYhead: Z. LIPOSITS
ENDOCRINE NEUROBIOLOGYhead: Z. LIPOSITS
CELLULAR AND NETWORK NEUROBIOLOGY
head: T. FREUND
CELLULAR AND NETWORK NEUROBIOLOGY
head: T. FREUND
PHARMACOLOGYhead: S. E. VIZI
PHARMACOLOGYhead: S. E. VIZI
GENE TECHNOLOGY AND DEVELOPMENTAL NEUROBIOLOGY
head: G. SZABÓ
GENE TECHNOLOGY AND DEVELOPMENTAL NEUROBIOLOGY
head: G. SZABÓ
BEHAVIORAL NEUROBIOLOGY
head: J. HALLER
BEHAVIORAL NEUROBIOLOGY
head: J. HALLER
Medical Gene Technology Division
Medical Gene Technology Division
animal & gene technologyplatform
12 research groups- ~70 scientists
The animal and gene technology platform
Medical Gene Technology Division
IEMHAS
Medical Gene Technology Division
running cost
Establishing the Medical Gene Technology Division at the Institute of Experimental Medicine
technology
major equipments
major equipments
buildingbuilding
building
MGDMGD
sponsored by: National granting agencies
Construction cost: 3.5 million €
service activity
• providing animal and gene technology support for the research activity of the institute• providing transgenic technology serviceincluding breeding and generation of transgenicmodels for:
AcademicResearch Institutions
Pharmaceuticalcompanies
Mission of the Medical Gene Technology Division
Transgenic Unit
Animal Technology Unit
MGDMGD
IEMHAS
AnimalTechnology Unit
2. emelet-SPF szint
Genotyping and DNA Lab
Virus Unit
Receiving Animal Unit (quarantine)
SPF
MD
Transgenic Technology Unit
microinjection
1. floor
ground floor
basement
2. floor
DNAembryo
Medical Gene Technology Division
mouseembryo transfer
~ 1000 m2
Capacity: 20.000 mice 4.000 rats
Virtual tour to MGD
Engine room
airflow: 35.000 m3/h
Regulated parameters:• temperature• humidity (60%)• pressure
Air filtering:trough multiple filtersHEPA filters at SPF level
Water: ultra filtered
exchange rate: 12 X/h
Ventilation:
Food: autoclaved
Light: regulated
formalin chamber
outside the SPF barrier
behind the SPF barrier
autoclave
personal air shower
animal transfer window
Washing machine Bedding disposal station
SPF hallway MD hallway
Mouse house
ventilated-cage system
ventilating -unit
Housing genetically modified mouse models inindividually ventilated cages
Research lab Research lab
Behavioral unitComplex behavioral testing of genetically modified mouse models
• emotional tests aggression anxiety social avoidance
• motor tests• learning and memory tests
Animal technology service activities:in house and contract
academy industry
transgenic colony management: 16 2
• Import/export of mouse models
• Colony maintenance and breeding
• Timed embryo production
• Embryo freezing and storage
National Mouse Embryo Bank
Embryo freezing for long term storage
number of frozen lines: 35number of depopulated lines: 15
vitrificationby Vajta
OPS methodtrypsin
treatment
♂♀X
collection of one cell stage embryos
superovulation with hormonal treatments
number of frozen
embryos >250/line
Transgenic Technology Unit
anxietyepilepsy
drug development
generating transgenic tools for genetic modification of well defined neuronal cell
types
Medical Gene Technology DivisionInstitute of Experimental MedicineHungarian Academy of Sciences
transgenic models for neuro-psychiatric diseases transgenic models for neuro-psychiatric diseases
neurodegenerative diseases
Transgenic service activities:in house and contract
• Generation of transgenic modelsTransgene design and constructionGenerating transgenic mice by pronuclear injection
plasmid-based transgene BAC-based transgene
Establishing transgenic linesDetecting transgene expression at RNA and protein levels (level and distribution)
• Rederivation through embryo transfer
• Genotyping
• Somatic gene transfer (in utero electroporation)
transgenic models for brain diseases transgenic models for brain diseases
genetic modification of neuronal cell types, circuits and signaling
• technical developments BAC technology - developed Tet inducible technology- in progress „Cre-stop” technology- in progress speedy mouse” technology - future plans transgenic rat- future plans “knockout” technology- future plans
Transgenic technical developmentsand projects
Group of Molecular Biology and Genetics
• projects
Microinjecting laboratorybehind the barrier
transfer window
DNA construct microinjection
embryo transfer
genotyping
analysis
Generating transgenic mouse models by pronuclear injection
hippocampus
olfactory bulb
inhibitory GABAergicneurons
excitatory glutamatergicneurons
cortex
cerebellar Purkinje cell pyramidal cells
Transgenic mouse models with genetically labeled neurons
Bacterial artificial chromosome-based transgenesis for more accurate genetic targeting:Parvalbumin/GFP-BAC transgenic mice
PV/GFP BAC
cerebellum
for targeting PV-containingGABAergic neurons
190kb150kb
90kb
45kb23kb
10kb
8kb
6kb
5kb
PV/GFP BAC fragment
circular BAC
NotI digestedBAC
mouse parvalbumin gene~180 kb
GFP
PV/GFP- modified BAC clone
transgene isolation analysis
hippocampus
PV-GFP BAC
180 kb
bacterial artificial chromosome
Generated transgenic models*
• GFP labeled neuronal cell-types : 7 (6 plasmid and 1 BAC constructs)• Genetically modified neuronal signaling: 4
(plasmid constructs)
• Transgenic model for neurodegenerative and other disorders: 5 (4 plasmid and 1 BAC constructs)
*12- inhouse 3- industry 1- academy
Genotyping:identifying heteroyzgous and homozygous
transgenic mice by PCR
Genotyping:identifying heteroyzgous and homozygous
transgenic mice by PCR
Genotyping & DNA laboratory
Designing and constructing transgenes
Transgenic colony:• establishment• maintenance• crossings
in close collaboration with Lab of Mol Biol & Gen
Tail DNA extraction: 4154PCR reaction: 9091
Tests for more then 30 different genetic modifications
Conventional level
trypsintreatment
SPF levelSPF level
♀ SPF foster mother
checking hygienic status after weaning
“clean” colony
barrier
♂♀X
“dirty” colony
1 cell stage embryocollection
superovulation
Rederivation
61 lines were transferred to SPF facility through
rederivation (42 lines from old facility and 12 imported lines).
11 rederivations are in progress and 5 are planned.
academy: 6+ 9 in progressindustry: 2