Print Email Facebook Twitter scTopoGAN Title scTopoGAN: unsupervised manifold alignment of single-cell data Author Singh, A. (TU Delft Pattern Recognition and Bioinformatics) Biharie, K. (TU Delft Pattern Recognition and Bioinformatics; Leiden University Medical Center) Reinders, M.J.T. (TU Delft Pattern Recognition and Bioinformatics; Leiden University Medical Center) Mahfouz, A.M.E.T.A. (TU Delft Pattern Recognition and Bioinformatics; Leiden University Medical Center) Abdelaal, T.R.M. (TU Delft Pattern Recognition and Bioinformatics; Leiden University Medical Center) Date 2023 Abstract Motivation: Single-cell technologies allow deep characterization of different molecular aspects of cells. Integrating these modalities provides a comprehensive view of cellular identity. Current integration methods rely on overlapping features or cells to link datasets measuring different modalities, limiting their application to experiments where different molecular layers are profiled in different subsets of cells. Results: We present scTopoGAN, a method for unsupervised manifold alignment of single-cell datasets with non-overlapping cells or features. We use topological autoencoders (topoAE) to obtain latent representations of each modality separately. A topology-guided Generative Adversarial Network then aligns these latent representations into a common space. We show that scTopoGAN outperforms state-of-the-art manifold alignment methods in complete unsupervised settings. Interestingly, the topoAE for individual modalities also showed better performance in preserving the original structure of the data in the low-dimensional representations when compared to other manifold projection methods. Taken together, we show that the concept of topology preservation might be a powerful tool to align multiple single modality datasets, unleashing the potential of multi-omic interpretations of cells. To reference this document use: http://resolver.tudelft.nl/uuid:8a613dfb-32fd-441d-99b4-b50064689e25 DOI https://doi.org/10.1093/bioadv/vbad171 ISSN 2635-0041 Source Bioinformatics Advances, 3 (1) Part of collection Institutional Repository Document type journal article Rights © 2023 A. Singh, K. Biharie, M.J.T. Reinders, A.M.E.T.A. Mahfouz, T.R.M. Abdelaal Files PDF vbad171.pdf 1.75 MB Close viewer /islandora/object/uuid:8a613dfb-32fd-441d-99b4-b50064689e25/datastream/OBJ/view