J 2021

DeepFoci: Deep learning-based algorithm for fast automatic analysis of DNA double-strand break ionizing radiation-induced foci

VIČAR, Tomáš, Jaromír GUMULEC, Radim KOLAR, Olga KOPECNA, Eva PAGACOVA et. al.

Basic information

Original name

DeepFoci: Deep learning-based algorithm for fast automatic analysis of DNA double-strand break ionizing radiation-induced foci

Authors

VIČAR, Tomáš (203 Czech Republic, belonging to the institution), Jaromír GUMULEC (203 Czech Republic, belonging to the institution), Radim KOLAR (203 Czech Republic), Olga KOPECNA (203 Czech Republic), Eva PAGACOVA (203 Czech Republic), Iva FALKOVA and Martin FALK (203 Czech Republic, guarantor)

Edition

Computational and Structural Biotechnology Journal, Amsterdam, Elsevier, 2021, 2001-0370

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10608 Biochemistry and molecular biology

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 6.155

RIV identification code

RIV/00216224:14110/21:00123920

Organization unit

Faculty of Medicine

UT WoS

000731411300007

Keywords in English

DNA Damage and Repair; Ionizing Radiation-Induced Foci (IRIFs); Biodosimetry; Deep Learning; Convolutional Neural Network; Morphometry; Confocal Microscopy; Image Analysis

Tags

Tags

International impact, Reviewed
Změněno: 24/1/2022 08:36, Mgr. Tereza Miškechová

Abstract

V originále

DNA double-strand breaks (DSBs), marked by ionizing radiation-induced (repair) foci (IRIFs), are the most serious DNA lesions and are dangerous to human health. IRIF quantification based on confocal microscopy represents the most sensitive and gold-standard method in radiation biodosimetry and allows research on DSB induction and repair at the molecular and single-cell levels. In this study, we introduce DeepFoci - a deep learning-based fully automatic method for IRIF counting and morphometric analysis. DeepFoci is designed to work with 3D multichannel data (trained for 53BP1 and gamma H2AX) and uses U-Net for nucleus segmentation and IRIF detection, together with maximally stable extremal region-based IRIF segmentation. The proposed method was trained and tested on challenging datasets consisting of mixtures of nonir-radiated and irradiated cells of different types and IRIF characteristics - permanent cell lines (NHDFs, U87) and primary cell cultures prepared from tumors and adjacent normal tissues of head and neck cancer patients. The cells were dosed with 0.5-8 Gy-gamma-rays and fixed at multiple (0-24 h) postirradiation times. Under all circumstances, DeepFoci quantified the number of IRIFs with the highest accuracy among current advanced algorithms. Moreover, while the detection error of DeepFoci remained comparable to the variability between two experienced experts, the software maintained its sensitivity and fidelity across dramatically different IRIF counts per nucleus. In addition, information was extracted on IRIF 3D morphometric features and repair protein colocalization within IRIFs. This approach allowed multiparameter IRIF categorization of single- or multichannel data, thereby refining the analysis of DSB repair processes and classification of patient tumors, with the potential to identify specific cell subclones. The developed software improves IRIF quantification for various practical applications (radiotherapy monitoring, biodosimetry, etc.) and opens the door to advanced DSB focus analysis and, in turn, a better understanding of (radiation-induced) DNA damage and repair. (C) 2021 The Authors. Published by Elsevier B.V. on behalf of Research Network of Computational and Structural Biotechnology.

Links

LM2018140, research and development project
Name: e-Infrastruktura CZ (Acronym: e-INFRA CZ)
Investor: Ministry of Education, Youth and Sports of the CR
MUNI/A/1307/2019, interní kód MU
Name: Kardiovaskulární systém od A do Z (Acronym: KAVASAZ)
Investor: Masaryk University, Category A
MUNI/A/1453/2019, interní kód MU
Name: Příspěvek ke studiu molekulární, buněčné, tkáňové a systémové patofyziologie vybraných komplexních nemocí
Investor: Masaryk University, Category A
ROZV/28/LF26/2020, interní kód MU
Name: Metoda analýzy dvouvláknových zlomů DNA na základě konfokální mikrosi
Investor: Ministry of Education, Youth and Sports of the CR, Internal development projects