Recent Advances in Adduct Science

A special issue of Biomolecules (ISSN 2218-273X). This special issue belongs to the section "Biological Factors".

Deadline for manuscript submissions: 31 May 2025 | Viewed by 640

Special Issue Editors


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Guest Editor
Department of Environmental Health Sciences, Hoshi University, Tokyo, Japan
Interests: DNA adductomics; environmental carcinogenesis; mutational signatures; cancer prevention

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Guest Editor
Sasaki Institute Sasaki Foundation, Tokyo 101-0062, Japan
Interests: cancer susceptibility and molecular epidemiology

Special Issue Information

Dear Colleagues,

Humans are exposed to an extremely large number of chemical substances in their daily lives. When these chemicals are taken into the body, they can be generally detoxified by drug-metabolizing enzymes, and usually excreted. Some of these chemicals however, can bind to proteins, nucleic acids, and other macromolecules in the body directly or after metabolic activation, to form adducts (addition + product). Some of these adducts have been widely used in epidemiological and mechanistic studies as biomarkers to elucidate the relationship between chemical substances and diseases.

Additionally, the biological effects of these adducts are known to be involved in the pathogenesis of various diseases, including cancer, through intracellular signal transduction, changes in gene expression, and the introduction of genomic mutations. Recently, with the development of innovative analytical techniques, not only an increasing number of protein- or nucleic acid-adducts have been discovered, but also their biological effects have been unveiled. Furthermore, these findings are expected to be applied to elucidate the precise mechanisms of disease development, to specify the etiology of diseases, to develop preventive strategies based on risk assessment, and eventually to lead to drug discovery.

The International Adductomics Consortium (IAC) was established 2023 with the aim of further developing the many possibilities of adduct science. The members of this consortium are researchers from various backgrounds who are interested in the biology of adducts, and the consortium aims to establish a platform to support this research by developing adduct databases and sharing resources and analytical methods with the scientific community. To mark the inauguration of the IAC, we would like to take this opportunity to organize a special issue, entitled Recent Advances in Adduct Science, as a forum to provide the latest information on adduct science research.

Dr. Yukari Totsuka
Dr. Haruhiko Sugimura
Guest Editors

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Keywords

  • adductomics
  • protein- or nucleic acid-adducts
  • biomarkers
  • exposome
  • genomic mutations
  • disease etiology
  • preventive strategies
  • drug discovery
  • risk assessment

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Published Papers (1 paper)

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Research

18 pages, 4306 KiB  
Article
Development of an Optimized Two-Step Solid-Phase Extraction Method for Urinary Nucleic Acid Adductomics
by Alexandra Keidel, Jazmine Virzi, Laura Deloso, Carolina Möller, Dale Chaput, Theresa Evans-Nguyen, Yuan-Jhe Chang, Mu-Rong Chao, Chiung-Wen Hu and Marcus S. Cooke
Biomolecules 2025, 15(4), 594; https://doi.org/10.3390/biom15040594 - 17 Apr 2025
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Abstract
The exposome represents the totality of endogenous and exogenous exposures across the lifespan. These exposures may result in DNA and RNA damage, in the form of adducts, which is a key factor in the etiology of a variety of human diseases, including cancer. [...] Read more.
The exposome represents the totality of endogenous and exogenous exposures across the lifespan. These exposures may result in DNA and RNA damage, in the form of adducts, which is a key factor in the etiology of a variety of human diseases, including cancer. It is understood that, following their repair, nucleic acid adducts are excreted into the urine, making urine an ideal, non-invasive matrix in which to study the whole-body nucleic acid adductome (the totality of nucleic acid adducts). However, the measurement of these adducts in urine presents challenges due to matrix interference and the variety of the chemical nature across the spectrum of nucleic adducts making their “one-size-fits-all” extraction by solid-phase extraction (SPE) challenging. Here, different types of SPE sorbents, and their combination, were evaluated for maximal recovery of nucleic acid adducts from urine. The SPE column combination of ENV+ coupled with PHE provided the best retention of a cocktail of 20 nucleic acid adduct standards. An untargeted high resolution mass spectrometry approach incorporating FeatureHunter 1.3 software was used to demonstrate the ability of this SPE method to successfully recover endogenous urinary nucleic acid adducts in addition to those represented by the cocktail of isotopically labeled standards. Using our approach, FeatureHunter 1.3 recognized approximately 500 adducts in both mouse and human urine samples. Isotopically labeled standards were used to identify a selection of the endogenous adducts and begin the characterization of the urinary nucleic acid adductome of mice and humans. Full article
(This article belongs to the Special Issue Recent Advances in Adduct Science)
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