To understand the principle of hemolytic plaque assay for the evaluation of antibody production by B cells and the
involvement of complement-mediated cell lysis; To perform hemolytic plaque assay using mouse splenocytes, sheep
RBCs and guinea pig serum, to observe hemolytic plaques and to evaluate antibody producing ability of B cells.
Lab 9: Rat Type I Passive Cutaneous Anaphylaxis (4 hours)
To recapitulate biology of hypersensitivity/allergy; To induce passive cutaneous anaphylaxis in a ovalbumin-immunized
rat; To evaluate the degree of hypersensitive reaction by injecting Evan’s blue via tail vein and measuring blue plaques
on the rat skin.
Module 2: A Comprehensive Project Based on an Autoimmune Disease Model
Lab 10: Introduction to an EAE model, Animal Behavior Assessment and Preparation of Spinal Cord Sections (4
hours)
To introduce a mouse model of experimental autoimmune encephalomyelitis (EAE) and how this model represents a
human disease -- multiple sclerosis; To demonstrate the method of EAE induction in mouse; To assess the severity of
EAE mice according to the scoring criteria of clinical signs such as limp tail and/or hind limb paralysis; To dissect mouse
spinal cord, prepare cryo blocks, and make cryosections.
Lab 11: HE Staining of EAE Spinal Cord Sections (4 hours)
To introduce the principle of HE staining and the histopathological characteristics of EAE; To perform HE staining on the
cryosections prepared in the last laboratory, and to observe the stained sections by light microscopy.
Lab 12: Immunofluorescent Staining (4 hours)
To learn the principle and application of immunofluorescent staining; To stain myelin basic protein and Iba-1 (a microglial
activation marker) on the sections prepared in Lab 10 using respective primary antibodies and fluorophore-labeled
secondary antibodies; To learn how to use an inverted fluorescent microscope and to observe the staining outcomes.
Lab 13: Flow Cytometric Analysis of Different T Cell Subsets in EAE (4 hours)
To introduce the working principle of flow cytometer, and to recapitulate different T cell subsets; To isolate single cells
from fresh spinal cord of an EAE mouse, and to stain for CD4+IL-17+ (Th17) or CD4+IFN-γ+ (Th1) cells, followed by flow
cytometry; To learn how to set gates, make compensation and analyze flow cytometry data.
Lab 14: Evaluation of Cytokine Production by ELISA (4 hours)
To learn the principle of and application of ELISA assay, and to introduce the features of cytokine production during EAE
development; To obtain serum and spinal cord homogenates from an EAE mouse and to perform an ELISA assay in
order to determine the levels of IL-17 and IFN-γ.
Lab 15: Gene Expression Analysis by Real-Time PCR (4 hours)
To be familiar with the principle and data analyzing method of real-time PCR; To extract total RNA from EAE mouse
spinal cord, and to perform real-time PCR for identification of altered gene expression in EAE.
Lab 16: Review and Presentation (4 hours)
The students will do group presentations on the experiment design, data interpretation and future work plan of the EAE
project.