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Respiratory and Infectious Diseases

About

The Immunopathology Core (IPC) provides state-of-the-art immunology and pathology services to COBRE, OCRID, OSU/Oklahoma, and external investigators. The IPC provides advanced immunology and pathology techniques, instrumentation, and expertise required for complex analyses. This core facility serves as a centralized resource offering technical services essential for advancing research primarily in respiratory and infectious diseases. In addition, the IPC collaborates with other OCRID cores, such as the Animal Models Core (AMC) and Molecular Biology Core (MBC) to provide streamlined services to users. The IPC is staffed with an expert immunologist and a board-certified veterinary pathologist each with extensive expertise in animal models and respiratory/infectious disease research. Additional support also includes an experienced core manager who is well trained in advanced immunology and pathology techniques and a histotechnologist to provide additional technical support and enhance service delivery.

COBRE funding in Phases I-II facilitated the establishment, expansion, and enhancement of IPC equipment, personnel, and services. The goals of the IPC during the current Phase III COBRE funding are focused on developing the core into a self-sustaining entity by providing state-of-the-art equipment use to OCRID, Oklahoma, and external investigators, including those from other veterinary colleges. 


OCRID Core Facilities Service Request Form

Please use the online form linked below to request a service from our core facility. Thank you!

Immunopathology Core Service Request Form


  • People

     

    Director:

    headshot of Dr. Rudragouda ChannappanavarRudra Channappanavar, BVSc, PhD.  
    Dr. Channappanavar is a viral immunologist with 15 years of experience studying immunology of infectious diseases. He has extensive expertise in flow cytometry/immunophenotyping, multiplex cytokine assays, ELISA, immunofluorescence, immunohistochemistry, and serological assays. 

    Co-Director: 

    Sunil Nivrutti More, BVSc & AH, MVSc, PhD, Diplomate ACVP
    Dr. Sunil More is a board-certified veterinary anatomichead shot of sunil more pathologist specializing in respiratory pathology and host–pathogen interactions. His research focuses on viral respiratory infections and their bacterial complications, with particular emphasis on disease mechanisms and pathogenesis. He has extensive expertise in developing respiratory disease models and lesion characterization with quantitative lesion scoring, providing rigorous pathological endpoints for experimental studies.

    Laboratory Manager:

    Headshot of Shannon CowenMs. Shannon Cowan, BS. Ms. Cowan is a skilled in multi parametric flow cytometry and multiplex cytokine assays including prep, collection and analysis. She is a BD trained flow cytometry expert and a cross trained expert in histotechnology and immunohistochemistry. Ms. Cowan manages day-to-day IPC activities and is the primary contact for IPC related questions.

     

    Histotechnologist:

    headshot of Caden MillerMr. Caden Miller. Caden is an undergraduate student working as a part-time histotechnician in IPC for the last 3 years. 
  • Contact Information

    The Immunopathology Core
    171 McElroy Hall
    Stillwater, 74078
    Phone: 405-744-4749
    Email: immunopathologycore@okstate.edu

    Reach out to us! Our staff and directors are always eager to discuss how we can best facilitate your research needs.

  • Histology Fee Sheet

    PDF Version

    Immunopathology Core: Histology

    Service

    Unit Charge

    1.

    Histopathologic evaluation

    $120/hour

    2.

    Gross necropsy eval, tissue collection, and histopathology

    $150/hour

    3.

    Tissue trimming only

    $6/cassette

    4.

    Processing fixed tissue and paraffin embedding only

    $8/block

    5.

    Unstained slides or scrolls from tissue or existing block 

    $10/slide

    6.

    Trimming, processing and H&E or special stain slide prep (no interpretation)

    $13/slide

    7.

    Special stains from paraffin embedded tissue

    $8/slide

    8.

    Research IHC*

    $50/slide

    *Cost: may increase with optimization, labor, cost of primary antibody, purchase of antibody, etc. Adjusted as needed

    9.

    Recuts from paraffin embedded tissue**

    $10/slide

    **Cost: may increase with labor, depth required, attempts, etc. Adjusted as needed.

    10.

    Slide scanning

    $5/slide

    11.

    Trimming, processing, and H&E slide prep (non-research, with interpretation)

    $50/animal (Up to 4 slides)

    12.

    Cryostat (unassisted)

    $15/hour

    13.

    Cryostat (assisted)

    $45/hour

    14.

    Large slide box

    $14/box

    15.

    Small slide box

    $8/box

    16.

    Technical support including training, consultation, IHC/special stain optimization, etc.

    $60/hour

    The listed prices are for academic users. Active CoBRE pilot projects will be charged 75% of the fee schedule and non-academic users will be charged 1.496 of the fee schedule. b) Project-specific consumables and reagents will be provided by or additionally charged to the investigators.

  • Immunology Fee Sheet

    PDF Version

    Immunopathology Core: Immunology

    Service

    Unit Charge


    FACS Aria with Operator

    $60/hour

    FACS Aria self-service (only well-trained personnel)

    $30/hour

    FACS Aria- Cell Sorting

    $80/hour

    Cytek  Aurora Evo Spectral flow cytometer (Self-service)

    $30/hour

    Cytek  Aurora Evo Spectral flow cytometer (Assisted service)

    $60/hour

    Flow Cytometry- Data Analysis

    $30/hour

    Bio-Plex Immunoassay

    $45/plate

    Bio-Plex Immunoassay- Data Analysis

    $30/plate

    NanoCellect WOLF cell sorter

    $45/hour

    Biotek Cytation 5 (Self-Service)

    $15/hour

    Biotek Cytation 5 (Assisted service)

    $45/hour

    Biotek Cytation 10 (Self-Service)

    $30/hour

    Biotek Cytation 10 (Assisted service)

    $60/hour

    Zeiss 900 LSM (Self-Service)

    $30/hour

    Zeiss 900 LSM (Assisted service)

    $60/hour


    Dispens Cell (Self-Service)

    $30/hour


    Dispens Cell (Assisted service)

    $60/hour

    The listed prices are for academic users. Active CoBRE pilot projects will be charged 75% of the fee schedule and non-academic users will be charged 1.496 of the fee schedule. b) Project-specific consumables and reagents will be provided by or additionally charged to the investigators.

  • Equipment
    FACSAria Special Order Research Product:

    The Aria has 4 lasers (violet, blue,aria.PNG yellow-green, red) with 13 fluorescence parameters for phenotyping. It is capable of aseptic, 4-way (4 cell types) sorts. The automated cell deposition unit (ACDU) allows sorting into multiwell plates and on microscope slides. The cytometer is housed in a Baker BioPROTECT IV biosafety cabinet to allow sorting of BSL2 infected cells or pathogens.
    For assistance in designing a panel please contact Ms. Shannon Cowan or refer to this SITE.

    Flow Cytometry Appointment Policy
    Please cancel your flow cytometry appointments as soon as you are aware that you will not be able to attend. Cancellations made less than one hour before the scheduled time will incur a charge equivalent to one hour of instrument use. Failure to show up for a scheduled appointment will also result in a one-hour instrument charge. Please note that billing is based on the scheduled start time of your appointment, not the actual time of arrival.

    Best Practices for Flow Cytometry
    Best Practices for Flow Cytometry2

    Cytek Aurora Evo:
    The Cytek Aurora EVO is an advanceCytek Flow cytometerd 3-laser spectral flow cytometer designed for high-parameter single-cell immunophenotyping. Equipped with violet (405 nm), blue (488 nm), and red (640 nm) lasers, the system enables simultaneous measurement of 30–40+ fluorophore-conjugated markers through full-spectrum emission capture and computational spectral unmixing. This platform is ideally suited for comprehensive immune profiling in models of viral infection, inflammation, and tissue injury, supporting detailed characterization of lymphoid and myeloid subsets, activation states, and functional immune responses.
    Agilent Biotek Cytation C10 Confocal Imager:
    The Agilent BioTek Cytation C10 is anAgilent Confocal Microscope automated multimode imaging platform that combines confocal fluorescence microscopy with widefield brightfield, color brightfield, and phase-contrast imaging. It supports magnification from 1.25× to 60× (air) and 40× to 60× (water immersion). The system is equipped with a high-sensitivity Sony CMOS camera (16-bit grayscale) and a confocal spinning disk module with 60-micron pinholes for rapid, high-resolution optical sectioning. Cytation C10 includes environmental control with incubation up to 45°C and integrated shaking, enabling live-cell and kinetic imaging workflows. Data acquisition and analysis are performed using GEN5 software.
    Bio-Rad Bio-Plex 200 system: 

    bio_rad.PNGThe Bio-Plex 200 system is a suspension array system which offers protein and nucleic acid researchers a reliable multiplex assay solution that permits analysis of up to 100 biomolecules in a single sample. The instrument is suitable to run any kit that is Luminex 200 compatible. For additional details see this SITE.

    NanoCellect WOLF Cell Sorter:  

    This Cell Sorter allows for gentlenanocollect.PNG analysis, sorting and plating of cells based on its microfluidic technology. By using sterile, disposable fluidics, system clean-up becomes extremely fast and cross contaminations are prevented. Therefore, the WOLF Cell Sorter is intended for use in single-cell genomics, antibody production, and cell line development.

    Olympus IX81 motorized fluorescence microscope:

    The IX81 is Olympus' mostolympus.PNG advanced motorized microscope, providing high standards of observation, measurement, and functional operation. A V-shaped optical path, improved fluorescence illuminators and further expanded UIS optics provide excellent performance for research applications.

    BioTek Cytation 5:

    biotec.PNGBioTek Cytation 5 combines automated microscopy and conventional microplate detection in a configurable, upgradable platform. The microscopy module offers up to 60x magnification in fluorescence, brightfield, high contrast brightfield, color brightfield, and phase contrast to address many applications and workflows. For application details, please see this SITE.

    Zeiss LSM-910:
    The Zeiss LSM-910 is an advanced coZeiss Microscopenfocal laser scanning microscope that integrates high-resolution fluorescence light microscopy with topography-based analysis to enable detailed characterization of complex 3D microstructures. This platform supports high-quality optical sectioning and three-dimensional reconstruction of biological specimens, providing exceptional spatial resolution and imaging depth. The instrument has broad applications in biomedical and translational research, including high-resolution imaging of cells and tissues, live-cell and time-lapse microscopy, visualization of pathogen–host interactions, subcellular localization of viral and immune markers, and quantitative 2D and 3D imaging of intact specimens. The Zeiss LSM-910 is a critical shared resource for studying cellular architecture, virus-host interaction, immune responses, and disease-associated tissue remodeling in infectious, inflammatory, and other models of diseases.
    Molecular Devices SpectraMax M2:

    spectramax.PNGThe SpectraMax M2 is a dual monochromator, multi-detection microwell reader with dual mode cuvette port and 96 or 384 microwell reader capability. It utilizes UV-Vis absorbance, as well as fluorescence intensity (FI) with optical performance comparable to top-level dedicated fluorescence spectrometers or spectrophotometers. Use this reader for Endpoint, Kinetic, Spectral, Area Well Scans, DNA, RNA and protein quantification and purity; PicoGreen, NanoOrange and Bradford; ELISA and enzyme kinetics; drug lysis profiles; live or dead viability, cytotoxicity, Caspase-3 and protease assays; cAMP assays using the CatchPoint kit.

    Molecular Devices SpectraMax Plus:

    The SpectraMax Plus is a UV/Visspectramax_plus.PNG spectro-photometer/microwell reader with built-in cuvette port and microplate drawer. It can read any standard cuvette, micro cuvette, test tube and 96-well or UV-transparent microplate in the wavelength range of 190-1000 nm. It can read 96 wells, each well has its own sample beam and reference detector. Applications include DNA Analysis, ELISA, Endpoint Analysis, Kinetics.

    ELISA Plate Washer:

    elisa.PNGELISA Plate Washer allows fast and easy washing of ELISA plates.

    Leica CM1850:

    The Leica CM1850 is a high-precision cryostat microtome designed for sectioning frozen tissueleica.PNG specimens in a variety of biological and medical applications. The CM1850 is widely used in research and clinical settings for creating thin, high-quality tissue sections that are used in various types of microscopy, including light, fluorescence, and electron microscopy.

    Leica ASP300 Tissue Processor:

    The ASP300 performs a series of steps to leica_asp300.PNGensure that tissue samples are dehydrated, cleared and infiltrated with paraffin to allow for precise embedding and cutting. Tissues can then be used for a multitude of staining procedures.

    Shandon Microtome and water bath:

    The microtome and watemicrotome.PNGr bath will enable users to cut sections and mount on microscope slides. These are available for users on Do-It-Yourself basis and a small fee will be charged to equipment use. IPC staff will provide training to use this equipment.


    The IPC Histology Lab can trim, process, embed, cut, and stain samples and slides using the following equipment on a fee-for-service basis. Equipment is managed, maintained and operated by IPC personnel.


    Sakura Finetek Tissue-Tek VIP6 AI tissue processor:
    Sakura Finetek Tissue-Tek VIP6 AI tissue procsakura.PNGessor uses advanced infiltration designed to provide high-quality tissue processing results for all tissue types.
    Leica EG1160 Embedding Station:

    Samples will be embeddedleica_eg1160.PNG on a Leica EG1160 Embedding Station.

    Leica HistoCore Biocut AS:
    leica_histocore.PNGLeica HistoCore Biocut AS used to cut sections for investigators.
    Sakura Finetek Tissue-Tek DRS 601 Slide Stainer
    sakure_drs601.PNGSlides are stained using the Sakura Finetek Tissue-Tek DRS 601 Slide Stainer.

OCRID Core Facilities User Satisfaction Survey

OCRID Core facilities are committed to providing top quality services and technical expertise in respiratory and infectious disease for center and non-center investigators. We encourage all users to fill out a simple, ten question survey. Your responses, comments, and suggestions can help us improve our services.

Core Facilities User Satisfaction Survey