• DarkMatters Group

    Decoding Biology's
    Dark Systems

  • DarkMatters Group

    lncRNAs and dsRNAs
    Roles & Functions

  • DarkMatters Group

    Exosomal Biomarkers
    in biofluids

Welcome to DarkMatters Group

The DarkMatters Research Group (head: Associate Professor Antonios Giannakakis) is part of the Gene Expression, Molecular Diagnosis and Modern Therapeutics Lab, which was founded in 2002.

The laboratory belongs to and operates within the Department of Molecular Biology & Genetics (MBG) of the Democritus University of Thrace (DUTH), which was founded in 2000 in Alexandroupolis with the vision of becoming a state-of-the-art research and educational center in the Southern Balkan region.

Announcements

Research Objectives

Genomic-level, organism-level understanding of the molecular stress responses

The role of the non-coding RNAs (long non-coding RNAs, double–stranded RNAs) in homeostasis and disease

Clinical studies and Biobanking on Autoimmune diseases and Perinatal Conditions

Discovery of sEV-associated Biomarkers in biological fluids

Tools, Datasets and Biobanks

Tools & Pipelines

We are developing pipelines for high-throughput genomic/transcriptomic NGS data analysis in order to demonstrate them as public available web tools.

Databases

Our first database, ASTRA (Atlas of STress Response Activity) , is available. Read article here.

In-house Datasets

Untargeted proteomics & metabolomics, total RNA-seq, datasets of sEV from human breast milk - Total RNA-seq/dsRNA-seq dataset from MS patients - Molecular stress-related -omic datasets.

Biological Samples

MS Biobank in Paster Institute - Human milk Biobank in DUTH - Biobank of biological fluids from pregnant women/mothers/infants in DUTH

Academic-Research Collaborators

Artemis Hatzigeorgiou

Professor of Bioinformatics

Department of Electrical and Computer Engineering, University of Thessaly, Greece

Vladimir Kuznetsov

Professor of Urology/Professor of Biochemistry and Molecular Biology

Upstate Medical University, USA

Lesley Probert

Researcher (Professor level)

Laboratory of Molecular Genetics, Hellenic Pasteur Institute, Greece

Michalis Aivaliotis

Associate Professor of Biochemistry

Μedicine Department, Aristotle University of Thessaloniki, Greece

Industry-Research Collaborators

Paschalis C. Papazilakis

President/CEO

EVROFARMA SA, Greece

  • A novel pipeline to enrich formula milk using omics technologies

    We aim to perform an extensive comparative analysis of human breastmilk with three locally traded animal milks (domestic sheep, goats and cattle from different regions of Greece). In particular, a high-quality, quantitative and qualitative study will be conducted for the analysis of the membrane and intracellular composition of the major classes of secreted extracellular vesicles and other transported microparticles.
    -Develop research infrastructures in academia and the private sector for fingerprinting human breastmilk.
    -Discover epigenetic mechanisms of signal transfer through exosome analysis
    -Discover novel lncRNAs in breast milk exosomes

    Project Role: Work-Package Leader

    Dr. Giannakis's WP: €120,000


  • Integrated Technologies in biomedical research: multilevel biomarker analysis in Thrace

    Project Role: Work-Package Leader

    Dr. Giannakis's WP: €120,000

Meet the DarkMatters Group

Click here for complete list of alumni

Latest Publications

Click here for complete list
  • 2025
  • C. Anastasiadi, M. Tsifintaris, M. Sitmalidis, E. Karamichali, K. Spyridopoulou, M. Patoulioti, M. Georganta, P. Tsikouras, N. Nikolettos, M. Lithoxopoulou, C. Tsakalidis, K. Chlichlia, G. Baltatzis, M. Samiotaki, R. Sandaltzopoulos, and A. Giannakakis (2025). EV-associated lncRNA NORAD and Protein Biomarkers in Human Milk Predict Unexplained Prematurity. In preparation.

  • M. Tsifintaris, D. Grigoriadis, M. Sitmalidis, P. Repanas, E. Lazarashvili, C. Anastasiadi, I. Kavakiotis, R. Sandaltzpoulos, GA Pavlopoulos and A Giannakakis (2025). ASTRA: A Comprehensive Resource of Stress-induced Transcriptional Activity in Human Cell Lines. Νucleic Acid Research, Database issue gkaf1174, IF: 13.1

  • D. Grigoriadis, M. Tsifintaris, A. Giannakakis, GA Pavlopoulos and N. Perdikopanis (2025). Public Omics Explorer (POE): Enabling integrative semantic search across GEO omics datasets based on PubMed publications. Comput Struct Biotechnol J. 2025;27:4802-4812, IF: 4.1

  • FA Baltoumas, E. Karatzas, NK Venetsianou, E. Aplakidou, K. Giatras, MN. Chasapi, IN. Chasapi, I. Iliopoulos, VA Iconomidou, IP. Trougakos, F. Psomopoulos, A. Giannakakis, I. Georgakopoulos-Soares, P. Kontou, PG. Bagos and GA Pavlopoulos (2025). Computational and Structural Biotechnology Journal, Volume 27, Pages 2626-2637, ISSN 2001-0370, IF: 4.1

  • 2024
  • Perdikopanis N, Giannakakis A, Kavakiotis I, Hatzigeorgiou AG. D-sORF: Accurate Ab Initio Classification of Experimentally Detected Small Open Reading Frames (sORFs) Associated with Translational Machinery. Biology (Basel). 2024;13(8):563.

  • Tsifintaris M, Sitmalidis M, Tokamani M, et al. Analysis of Human Milk Microbiota in Northern Greece by Comparative 16S rRNA Sequencing vs. Local Dairy Animals. Nutrients. 2024;16(14):2175.

  • Giannakakis A, Tsifintaris M, Gouzouasis V, et al. KDM7A-DT induces genotoxic stress, tumorigenesis, and progression of p53 missense mutation-associated invasive breast cancer. Front Oncol. 2024;14:1227151.

  • 2023
  • Gouzouasis V, Tastsoglou S, Giannakakis A, Hatzigeorgiou AG. Virus-Derived Small RNAs and microRNAs in Health and Disease. Annu Rev Biomed Data Sci. 2023;6:275-298.

  • 2021
  • Mourtzi, et al. “lncRNA NORAD is consistently detected in breastmilk exosomes and its expression is downregulated in mothers of preterm infants.” International journal of molecular medicine vol. 48,6 (2021)

  • Vlachakis, et al. “Functions, pathophysiology and current insights of exosomal endocrinology (Review).” Molecular medicine reports vol. 23,1 (2021)

  • Papageorgiou, et al. “An updated evolutionary study of the nuclear receptor protein family.” World Academy of Sciences Journal 3.6 (2021)

Contact Us

Contact Details

Antonios Giannakakis
Associate professor

+30 25510 30639

antgian [at] mbg.duth.gr

Department of Molecular Biology & Genetics,
Democritus University of Thrace,
Dragana, Alexandroupolis, 68100, Greece