Skip to main content

Advertisement

Log in

Activation-induced cytidine deaminase: in sickness and in health

  • Review – Cancer Research
  • Published:
Journal of Cancer Research and Clinical Oncology Aims and scope Submit manuscript

Abstract

Activation Induced cytidine Deaminase (AID) is an essential enzyme of the adaptive immune system. Its canonical activity is restricted to B lymphocytes, playing an essential role in the diversification of antibodies by enhancing specificity and changing affinity. This is possible through its DNA deaminase function, leading to mutations in DNA. In the last decade, AID has been assigned an additional function: that of a powerful DNA demethylator. Adverse cellular conditions such as chronic inflammation can lead to its deregulation and overexpression. It is an important driver of B-cell lymphoma due to its natural ability to modify DNA through deamination, leading to mutations and epigenetic changes. However, the deregulation of AID is not restricted to lymphoid cells. Recent findings have provided new insights into the role that this protein plays in the development of non-lymphoid cancers, with some research shedding light on novel AID-driven mechanisms of cellular transformation. In this review, we provide an updated narrative of the normal physiological functions of AID. Additionally, we review and discuss the recent research studies that have implicated AID in carcinogenesis in varying tissue types including lymphoid and non-lymphoid cancers. We review the mechanisms, whereby AID promotes carcinogenesis and highlight important areas of future research.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig.1

Similar content being viewed by others

Code availability

Not applicable.

Abbreviations

A-EJ:

Alternative end-joining

AID:

Activation induced cytidine deaminase

AIDS:

Acquired immune deficiency disorder

AOM:

Azoxymethane

APE1:

Apyrimidinic endonuclease

APOBEC:

Apolipoprotein B mRNA editing catalytic polypeptide-like

ATP:

Adenosine triphosphate

BER:

Base excision repair

BL:

Burkitt lymphoma

BUCC:

Bladder urothelial cell carcinoma

CAC:

Colitis-associated cancers

CHOP:

Cyclophosphamide, doxorubicin hydrochloride, vincristine sulfate and prednisone

CRM-1:

Chromosome maintenance 1

CSR:

Class switch recombination

dC:

Deoxycytidine

DLBCL:

Diffuse large B cell lymphoma

DSS:

Dextran sulfate sodium

dU:

Deoxyuridine

EBNA2:

Epstein-Barr virus nuclear antigen 2

EBNA3C:

Epstein-Barr virus nuclear antigen 3C

EBV:

Epstein-Barr virus

EGFR:

Epidermal growth factor receptor

EMT:

Epithelial-to-mesenchymal transition

GC:

Germinal centre

HAART:

Highly active antiretroviral therapy

HIV:

Human immunodeficiency virus

IECs:

Intestinal epithelial cells

IRC:

Inflammation-related carcinogenesis

LMP1:

Latent Membrane Protein 1

MMP14:

Matrix Metalloproteinase 14

MMR:

Mismatch repair

NES:

Nuclear export signal

NHEJ:

Non-homologous end-joining

NHL:

Non-Hodgkin lymphomas

NLS:

Nuclear localisation signal

PD-L1:

Programmed Cell Death Ligand

RBPJ:

Recombination binding protein

REG-γ:

REGgamma

SHM:

Somatic hypermutation

ssDNA:

Single stranded DNA

TLR9:

Toll-like receptor 9

TSS:

Transcription start site

UNG:

Uracil-DNA glycosylase

UV:

Ultraviolet

References

Download references

Acknowledgements

Philipe Alves de Souza Rios for assisting in developing the graphics in Fig. 1.

Funding

Not applicable.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Shaheen Mowla.

Ethics declarations

Conflict of interest

The authors declare that they have no competing interests.

Ethics approval

Not applicable.

Consent to participate:

Not applicable.

Consent for publication

All authors have consented to the publication of this manuscript.

Availability of data and material

Data sharing does not apply to this article as no datasets were generated or analysed during the current study.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Rios, L.A.d., Cloete, B. & Mowla, S. Activation-induced cytidine deaminase: in sickness and in health. J Cancer Res Clin Oncol 146, 2721–2730 (2020). https://doi.org/10.1007/s00432-020-03348-x

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00432-020-03348-x

Keywords

Navigation