Related Experiment Video
Updated: Aug 8, 2026

Use of Interferon-γ Enzyme-linked Immunospot Assay to Characterize Novel T-cell Epitopes of Human Papillomavirus
Published on: March 8, 2012
Cell-mediated immunity in cervical intraepithelial neoplasia
1Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Korea.
Cervical intraepithelial neoplasia (CIN) patients showed a significantly reduced lymphocyte response to phytohemagglutinin (PHA). Other immune parameters, including T and B cell distribution, remained similar compared to healthy controls.
Area of Science:
- Immunology
- Gynecologic Oncology
Background:
- Cervical intraepithelial neoplasia (CIN) is a precancerous condition of the cervix.
- Immune system dysregulation may play a role in CIN development and progression.
Purpose of the Study:
- To investigate immune parameter differences between patients with CIN and healthy controls.
- To identify potential immune biomarkers associated with CIN.
Main Methods:
- Peripheral T and B cell distribution was analyzed.
- T cell subpopulations were assessed.
- Interleukin 2 (IL-2) activity was measured.
- In vitro lymphocyte proliferation responses to phytohemagglutinin (PHA) and concanavalin A (Con A) were evaluated.
Main Results:
- Lymphocyte response to PHA was significantly lower in the CIN group compared to controls (P < 0.05).
- No significant differences were observed in T and B cell distribution, T cell subpopulations, IL-2 activity, or Con A response between groups.
Conclusions:
- Reduced in vitro lymphocyte response to PHA may be a characteristic immune alteration in patients with CIN.
- Further research is needed to elucidate the role of specific immune responses in cervical neoplasia.
Related Concept Videos
Cell-mediated Immune Responses
Cells of the Innate Immune Response
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Antigens Involved in Adaptive Immunity
Complete Antigens
Complete antigens possess both immunogenicity and reactivity.
T Cell Activation and Clonal Selection
Naive T cells that have not yet encountered an antigen express two primary CD...
Cytotoxic T Cells-mediated Immune Response
Immunological surveillance is the ability of immune cells to monitor and eliminate infected cells with intracellular pathogens, neoplastically transformed cells, and cells with non-self antigens. Cytotoxic T cells and NK...
Immune Response Against Viral Pathogens
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...

