Which feature is characteristic of professional antigen-presenting cells (APCs)? A) They exclusively produce cytokines B) They have only MHC class 1 molecules on their surface C) T... Which feature is characteristic of professional antigen-presenting cells (APCs)? A) They exclusively produce cytokines B) They have only MHC class 1 molecules on their surface C) They lack the ability to process antigens D) They can present antigens to all types of lymphocytes
Understand the Problem
The question is asking about the characteristics of professional antigen-presenting cells (APCs) and which feature is true among the provided options. This requires knowledge of immunology and the functions of immune cells.
Answer
They can present antigens to all types of lymphocytes
The final answer is that professional antigen-presenting cells (APCs) can present antigens to all types of lymphocytes.
Answer for screen readers
The final answer is that professional antigen-presenting cells (APCs) can present antigens to all types of lymphocytes.
More Information
Professional APCs are specialized cells that play a crucial role in initiating T-cell responses by presenting processed antigen fragments with MHC class I and II molecules.
Tips
A common mistake is to assume APCs can only present to one type of lymphocyte instead of both T-helper and cytotoxic T cells.
Sources
- Antigen Presenting Cell - an overview - sciencedirect.com
- Antigen-presenting cell - Wikipedia - en.wikipedia.org
- Antigen Processing and Presentation | British Society for Immunology - immunology.org
