NATIONAL CANCER INSTITUTE - CANCER.GOV

Contact Information


Primary Contact

Tatiana Karpova
Head

Location

41 Medlars Drive
Bldg 41/ C615
Bethesda, MD 20892

Overview

The core provides access to several different state-of-the-art microscopes as well as computers to visualize, process and quantify image data. The facility houses equipment for 2D or 3D imaging of fixed and living specimens. High resolution images can be obtained by confocal microscopy or deconvolution, and super-resolution techniques SIM, STORM, MINFLUX. Single Molecule tracking is supported on MINFLUX, and custom HILO-illumination microscopes.

Established Technologies

Facility personnel are available for consultation about the design of imaging experiments and/or the analysis of image data. Special expertise is available for assistance with live cell imaging as well as deconvolution microscopy. Facility personnel are also experienced in the other techniques listed below and can provide expertise and software for quantitative analysis of images.

  • 2D or 3D imaging of fixed and living specimens
  • High-resolution imaging using confocal microscopy or deconvolution
  • Protein colocalization
  • Fluorescence photobleaching techniques, such as FRAP
  • Analysis of protein interactions by FRET
  • Super Resolution (SIM; STORM, MINFLUX)
  • Single Molecule Tracking by HILO-illumination and MINFLUX.

Major Instrumentation


  • NIKON  wide-field microscope
  • ELYRA Super Resolution Microscope
  • Carl Zeiss LSM780 Microscope
  • Carl Zeiss LSM880 Microscope
  • Custom HILO-illuminated microscopes
  • MINFLUX nanoresolution/nanotracking microscope

User Guidelines

Open to all NCI intramural researchers for free. Researchers from other NIH institutes are also welcome to contact us for the fee service. We do not collaborate with extramural researchers. The Core collaborates on projects requiring extensive support of core staff such as Single Molecule Tracking, and Nano resolution projects, and supports and trains users for conventional techniques/microscopes.

New Users interested in using the core’s microscopes must first contact Dr. Karpova. Following the initial request, Dr. Karpova will meet with the user and his/her principal investigator to discuss the research project. Advice will be provided to the user regarding the advantages/limitations of the different forms of microscopy available, both in this core and elsewhere. The staff will also help the user develop an overall research strategy, design experiments, and solve specific experimental problems.

Consultation is also available regarding image analysis and interpretation and/or selection and purchase of microscopy hardware and image processing software.

Publications

  • Bharat Bhatt, Yi Wei , Ashis Kumar Pradhan, Jothy Dhakshnamoorthy, Martin Zofall, Hua Xiao, Drisya Vijayakumari, Shweta Jain, Hernan Diego Folco, Honquin Qi, David A. Ball , Tatiana S. Karpova, David Wheeler, Jiemin wong, Shiv I. S. Grewal. (2026) Stress controls heterochromatin inheritance via histone H3 ubiquitilation. Nature. https://doi.org/10.1038/s41586-025-09899-8
  • Sethi, S. C., Shrestha, R. L., Balachandra, V., Hori, T., Corda, L., Ozbun, L., Karpova, T. S., McKinnon, K., Chari, R., Pegoraro, G., Chih-Chien Cheng, K., Giunta, S., Caplen, N. J., Fukagawa, T., Basrai, M. A. (2025) Chromatin remodeling activity of EP400 safeguards chromosomal stability by preventing CENP-A mislocalization. Cell Rep. 44: 116423; doi: 10.1016/j.celrep.2025.116423
  • Correll, C. C., Rudloff, U., Schmit, J. D., Ball, D. A., Karpova, T. S., Balzer, E., Dundr, M., Crossing boundaries of light microscopy resolution discerns novel assemblies in the nucleolus (2024) Histochemistry and Cell Biology. 162(1-2):161-183. doi: 10.1007/s00418-024-02297-7
  • Ahn, J., Zhang, L., Ravishankar, H., Fan, L., Zeng, Y., Kirsh, K. P., Park., J-E., Yun, H-Y., Ghirlando, R., Ma, B., Ball, D. A., Ku, B., Nussinov, R., Karpova, T. S., Kim, S. J., Wang, Y-X., and Lee, K. S. (2023) Architectural basis for cylindrical self-assembly governing Plk4-mediated centriole duplication in humans. Commun Biol. 6(1):712. doi: 10.1038/s42003-023-05067-8

Keywords

ELYRA Super Resolution MicroscopeFCSFRAPFRETPALMPhotoactivated Localization MicroscopySIMSTORMStructural Illumination MicroscopyZeiss LSM780confocal microscopydeconvolutionImaging and Microscopyfluorescencehigh resolution imagingimaginglive-cell imagingnci-coreoptical sectioningprotein colocalizationNanoresolutionSingle Molecule TrackingMINFLUXZeiss LSM 880Custom HILO-illumination microscope