LOGO Myocardial Extracellular Matrix Remodeling in Heart Failure 王小蕾 高新营 王洁 王淳阅 石琳.
DC vaccine & Anti-tumor “ 生命之树 ” 课题组: 孔琰 唐跃 田亚楠 孔琰 唐跃...
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Transcript of DC vaccine & Anti-tumor “ 生命之树 ” 课题组: 孔琰 唐跃 田亚楠 孔琰 唐跃...
![Page 1: DC vaccine & Anti-tumor “ 生命之树 ” 课题组: 孔琰 唐跃 田亚楠 孔琰 唐跃 田亚楠 王超 王京 王欠欠 王超 王京 王欠欠.](https://reader030.fdocument.pub/reader030/viewer/2022033009/56649f575503460f94c7c490/html5/thumbnails/1.jpg)
DC vaccine & DC vaccine & Anti-tumorAnti-tumor
““生命之树生命之树” ” 课课题组:题组:
孔琰 唐跃 田亚楠 孔琰 唐跃 田亚楠 王超 王京 王超 王京 王欠欠王欠欠
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The tumor induced immunity The tumor induced immunity DC vaccineDC vaccineInduce in vitro & proliferationInduce in vitro & proliferationClassification DC vaccineClassification DC vaccineThe function of DC in anti-tumorThe function of DC in anti-tumorReinfuse of DCReinfuse of DCOur opinionOur opinion
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The function of DC in anti-tumorThe function of DC in anti-tumor
Mechanism of DC in anti-tumorMechanism of DC in anti-tumor
Inhibit formation of tumor vessel
NO,TNF etc
Migration proliferation
Tumor Ag DC TCTL
Tolerance
Cell apoptosis、 lysis、 CK
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Influence to DC from CKs producInfluence to DC from CKs produced by tumored by tumor
VEGFCVEGFC (血管内皮生长因子)——(血管内皮生长因子)—— DepresDepress the differentiation of pre-DC to mature DCs the differentiation of pre-DC to mature DC
IL-10IL-10————Inhibit the expression of co-stimulatory Inhibit the expression of co-stimulatory molecules molecules
TGF-ßTGF-ß————Inhibit the activation of specific Inhibit the activation of specific CTLCTL
DC-SIGNDC-SIGN
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DC vaccineDC vaccineDefinition:Definition: the DC derive from peripheral the DC derive from peripheral
blood mononuclear cells(blood mononuclear cells(PBMCsPBMCs) are s) are stimulated by peptide antigen,tumor lysattimulated by peptide antigen,tumor lysates,whole-cell prepration RNA or DNA of es,whole-cell prepration RNA or DNA of tumor.And the reinfuse the DC into the tumor.And the reinfuse the DC into the patient as vaccine.patient as vaccine.
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HOW TO GAIN DC ?HOW TO GAIN DC ?
Peripheral blood mononuclear cells Peripheral blood mononuclear cells are proper for clinical experiment.are proper for clinical experiment.
GM-CSF / IL-4
CD14+CD14+ DCDC
CD34+ CD34+ DCDCGM-CSF / TNF-α
DC vaccine
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HOW TO GAIN DC ?HOW TO GAIN DC ?
Peripheral blood mononuclear cells Peripheral blood mononuclear cells are proper for clinical experiment.are proper for clinical experiment.
GM-CSF / IL-4
CD14+ CD14+ DCDC
CD34+ CD34+ DCDCGM-CSF / TNF-α
DC vaccine
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Ag pep loaded DC subcellular vaccine4
Classification DC vaccineClassification DC vaccine
Peptide-pulsed DC vaccinePeptide-pulsed DC vaccine Peptide-pulsed DC vaccinePeptide-pulsed DC vaccine1
Tumor cell lysate-sensitized DC2
DC-tumor cell hybrids3
Genetically modified DC vaccine5
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11 Peptide-pulsed DC vaccinePeptide-pulsed DC vaccine
The tumor peptide in HCC is mainly alpha-fetoThe tumor peptide in HCC is mainly alpha-fetoprotein(protein(AFPAFP))
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IntroductionIntroduction
AFP It has no affection to DC even at AFP It has no affection to DC even at high concention.high concention.
Glypican—3Glypican—3
HbsAg HbsAg
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11 Peptide-pulsed DC vaccinePeptide-pulsed DC vaccine
AdvantagesAdvantagesTargetingTargeting, avoid unnecessary immune stimulation., avoid unnecessary immune stimulation.higher concentration of tumor Ag stimulate the higher concentration of tumor Ag stimulate the activation of T cell efficiently activation of T cell efficiently
DisadvantagesDisadvantagesThere is There is little confirmedlittle confirmed; Specific recognization; Specific recognizationLittle monoclonal tumor AgLittle monoclonal tumor Ag
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2 Tumor cell lysate-sensitized DC
AdvantagesAdvantages :: tumor cell Ag prepared by direct tumor cell Ag prepared by direct supersonic breaksupersonic break
down or repeated freezing&meltingdown or repeated freezing&melting etc. is useful etc. is useful ,,no desire for Ag recognizing epitopeno desire for Ag recognizing epitope
Disadvantages:Disadvantages: hard to supply large amount of fluid tissuehard to supply large amount of fluid tissue ;; tumor lysate include normal self-Ag,which easiltumor lysate include normal self-Ag,which easil
y induce y induce self-immune diseaseself-immune disease after immunizatio after immunizationn 。。
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2 Tumor cell lysate-sensitized DC
Current SituationCurrent Situation :: LadhamsLadhams 、、 IwashitaIwashita
AliAli
HayashiHayashi
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+DC Tumor cell
3 DC-tumor cell hybrids
DC-Tumor hybrids
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+DC Tumor cell
3 DC-tumor cell hybrids
DC-Tumor hybrids
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Hybrid cell Tumor cell
Unrelated tumor cell
Tumor cell
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AdvantagesAdvantages Easily abtaned from biopsyEasily abtaned from biopsy 、、 operation,HCC tisoperation,HCC tis
sue specimen fromsue specimen from ;; advanced skill to obtain padvanced skill to obtain pre-DC via cell culturere-DC via cell culture ;; hybrid cell can present hybrid cell can present HCC Ag in the form of MHC pep complexHCC Ag in the form of MHC pep complex ;; hyhybrid cells in vivo can stimulate to form lasing & brid cells in vivo can stimulate to form lasing & steady Agsteady Ag
Disadvantages:Disadvantages:Selection of hybrided cellsSelection of hybrided cells
3 DC-tumor cell hybrids
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4 Antigenic peptide loaded DC subcellular vaccine
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DC subcellular structure & other DC hybrids inhense
expression of DC
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5 Genetically modified DC vaccine
Antigen gene (HCC HBsAg AFP)Antigen gene (HCC HBsAg AFP)
Cytokine gene(GM-CSF IL-12)Cytokine gene(GM-CSF IL-12)
Chemotactic gene (lymphotactin Lpin) Chemotactic gene (lymphotactin Lpin)
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5 Genetically modified DC vaccine
AdvantagesAdvantages :: AFP gene modefied DC vaccine can expressAFP gene modefied DC vaccine can express completely endogenously & continuously completely endogenously & continuously reduce autoimmune diseasesreduce autoimmune diseases
Disadvantages:Disadvantages:
The technology is not developedThe technology is not developed
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HOT SPOTSHOT SPOTS
IL-18 & Survivin(IL-18 & Survivin( 存活素存活素 ) )
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Other methods to improve the Other methods to improve the effect of DC vaccineeffect of DC vaccine
NK cell& DC cell interactionNK cell& DC cell interaction
Heat shock proteinHeat shock protein (( HSPHSP ))Mannosalization of AgMannosalization of Ag
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Other methods to improve the Other methods to improve the effect of DC vaccineeffect of DC vaccine
NK cell& DC cell interactionNK cell& DC cell interaction
Heat shock proteinHeat shock protein (( HSPHSP ))Mannosalization of AgMannosalization of Ag
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Reinfuse of DC vaccineReinfuse of DC vaccine
subcutaneous
venousLymph node ?
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Ag-loaded DC
Produce selective T cell chemotactic factors
Migrate to lymph node &spleen
Self or other APC secrete IL-12
CD8+Tcell Secrete CKs & cause damage
CD4+Th0 Th1 IFN-γ TNF-α GM-CSF IL-3
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FORWARDFORWARD
Until now many cancers can be treated,Until now many cancers can be treated,
such as:such as:
B cell lymphoma cancerB cell lymphoma cancer
Prostate cancerProstate cancer
Malignant melanomaMalignant melanoma
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曹雪涛 (左 )正在进行大肠癌 DC疫苗研究
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Development and maturation Development and maturation of DCof DC
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Difference between immature DC and Difference between immature DC and mature DCmature DC
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Characteristics of DCCharacteristics of DC :: 1. the most potent APC1. the most potent APC
2.the only cell can active naïve T cell to 2.the only cell can active naïve T cell to elicit primary immune response. elicit primary immune response.
3.play an significant role in anti-tumor3.play an significant role in anti-tumor
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NK cell& DC cell interactionNK cell& DC cell interaction
DC attaches at the surface of NK cell and DC attaches at the surface of NK cell and stimulates related receptors ,so these stimulates related receptors ,so these two cells can communicate in the form of two cells can communicate in the form of neural synapse.neural synapse.