Chapter Category: Immunology

From the book Memory T Cells

Antigen Specific Memory T Cells and Their Putative Need for the Generation of Sustained Anti‑Tumor Responses

Kory L. Alderson and William J. Murphy

Memory T‑cell responses to cancer antigens may be an effective way to sustain long‑term tumor‑free survival. However, finding an effective vaccination strategy to induce memory T‑cell responses toward tumor associated antigens in patients with existing disease has proven to be extremely difficult. Immune stimulation regimens have been combined with tumor vaccination in an attempt to boost the immune response resulting in better vaccine efficacy. In these instances immune stimulation alone has shown some promise as a primary tumor therapy, but has been less effective at eliciting long‑term tumor immunity. Likewise, combining systemic adjuvant therapy with tumor antigen vaccination also demonstrated a lack of sustained anti‑tumor immunity in cancer patients. In this review, we discuss whether the immune response generated during immune stimulation is appropriate for supporting memory T‑cell generation or whether initial tumor regression and generation of sustained anti‑tumor immunity have different immunological signaling requirements.

Taken from the book

Memory T Cells

Edited by: Maurizio Zanetti and Stephen P. Schoenberger

More chapters from the book:

Analysis of Vaccine-Induced T cells in Humans with Cancer
Stefanie L. Slezak, Andrea Worschech, Ena Wang, David F. Stroncek and Francesco M. Marincola

Over the past several years, progress in the field of tumor immunology has lead to advances in active immunotherapy and vaccination as a means of eliciting tumor‑specific immune responses to mediate tumor regression and clearance. Developing vaccines targeted against cancer became an important...


Memory T‑cell responses to cancer antigens may be an effective way to sustain long‑term tumor‑free survival. However, finding an effective vaccination strategy to induce memory T‑cell responses toward tumor associated antigens in patients with existing disease has proven to be extremely...


Memory T-Cell Subsets in Parasitic Infections
Sara Colpitts and Phillip Scott

Parasitic infections remain a major health problem throughout the world and unlike many viral or bacterial diseases, there are no vaccines to help control parasitic diseases. While several important advances have been made that will contribute to the development of parasite vaccines, such as...


Memory Th1/Th2 Cell Generation Controlled by Schnurri-2
Toshinori Nakayama and Motoko Y. Kimura

Schnurri (Shn) is a large zinc‑finger containing protein, which plays a critical role in cell growth, signal transduction and lymphocyte development. There are three orthologues (Shn‑1, Shn‑2 and Shn‑3) in vertebrates. In Shn‑2‑deficient mice, the activation of NF‑κB in CD4...


Following infection or vaccination, antigen‑specific T cells undergo enormous expansion in numbers and differentiate into effector cells that control infection and modulate other aspects of innate and adaptive immunity. The effector T‑cell expansion phase is followed by an abrupt period of...


Cancer is a major public health problem worldwide. Accumulating evidence suggests that tumor‑host interactions may in part impact on tumor progression. However, the role of inflammation and adaptive immune reaction in cancer emergence, local and metastatic invasion and recurrence are still not...


Memory T‑cell generation is limited by activation‑induced cell death during the effector T‑cell stage. Cell surface proteins are known to transmit signals that either accentuate or limit T‑cell death after activation. This chapter will focus on the TNF‑receptor family member OX40, which...


Investigation of T‑cell‑mediated immunity following acute viral infection represents an area of research with broad implications for both fundamental immunology research as well as vaccine development. Here, we review techniques that are used to assess T‑cell memory including limiting...


Memory T cells in Rhesus Macaques
Monica Vaccari and Genoveffa Franchini

The Rhesus macaque (Macaca mulatta) is one of the best studied species of Old World monkeys. DNA sequencing of the entire Rhesus macaque genome, completed in 2007, has demonstrated that humans and macaques share about 93% of their nucleotide sequence. Rhesus macaques have been widely used for...


Principles of Memory CD8 T-Cells Generation in Relation to Protective Immunity
Maurizio Zanetti, Paola Castiglioni and Elizabeth Ingulli

Memory T‑cell responses are of vital importance in understanding the host’s immune response against pathogens and cancer cells and to begin establishing the correlation of protection against disease. In this review, we discuss our own data in the general context of current knowledge to sketch...


Evidence is accumulating that old individuals are more susceptible to infection with organisms to which they were previously immune, indicating that there might be a limit to the persistence of immune memory. The prevailing concept is that defects in memory T‑cell populations result from...


The Role of Interleukin‑2 in Memory CD8 Cell Differentiation
Onur Boyman, Jae-Ho Cho and Jonathan Sprent

The current literature on the role of interleukin (IL)‑2 in memory CD8+ T‑cell differentiation indicates a significant contribution of IL‑2 during primary and also secondary expansion of CD8+ T cells. IL‑2 seems to be responsible for optimal expansion and generation of effector functions...


Transcriptional Regulation during CD8 T‑Cell Immune Responses
Ivana Munitic, Cesar Evaristo, Hsueh Cheng Sung and Benedita Rocha

Naïve CD8 T cells differentiate in response to antigen stimulation. They acquire the capacity to express multiple effector molecules and mediate effector functions that contribute to infection control. Once antigen loads are reduced they revert progressively to a less activated status and...


Immunological memory is considered the hallmark of adaptive, or acquired, immunity. That ability of our immune system to recognize and respond to those pathogens we have encountered before not only typifies acquired immunity but has provided the basis for the most notable of medical...


CD8 T‑cell responses play an important role in protection against intracellular pathogens. Memory CD8 T cells mediate rapid clearance of pathogens upon secondary infection owing to their elevated frequency, ready localization to peripheral sites of infection and their ability to rapidly expand...


Advertisements