Genetic Resources Core Facility Biorepository & Cell Center



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Overview of Services

The GRCF Biorepository & Cell Center was established in 1989 as a core resource to produce immortalized cell lines from human blood (EBV transformations). Continued success has enabled the lab to open its doors to the Hopkins community at large and to expand its services to include cryogenic storage in an on-site biorepository, bioprocessing such as mammalian cell culture and blood processing and domestic / international bioshipping. In 2013 the GRCF Biorepository & Cell Center proudly received the international recognition of CAP (the College of American Pathologist) Accreditation. This voluntary program demands that a laboratory go well beyond acceptable quality and regulatory compliance measures to help achieve the highest standards of excellence in our services. Our mission in the GRCF Biorepository & Cell Center is to bring high quality, cost effective services to investigators throughout the Johns Hopkins scientific community.



Meet Our Team

 Director of the GRCF and Director of the Biorepository:  Melissa V. Olson, Ph.D.


Dr. Melissa Olson, Director of the GRCF  and Director of the Biorepository has more than 15 years of cell culture and biorepository experience.  She oversees the activities of all the divisions of GRCF.  In addition she oversees the GRCF Biorepository staff and ensures that long-term cryogenic storage are handled in a timely and expert manner. In addition, she offers assistance to faculty in the design and implementation of projects involving maintenance or storage of cultured cells.


Director of the Cell Center: Kakali Sarkar, Ph.D.

Dr. Sarkar has more than 20 years of Cell and Molecular Biology experiences. She has been responsible for overseeing Cell Center’s bioprocessing activities across a range of areas including Clinical research support services, cell line expansion and cryopreservation, establishment of cell lines to meet productivity, quality goals and timeliness of the deliverables. She serves as Cell Center’s representative to clinical and basic research scientist to shape solutions according to their project needs.  Additionally, she aids faculty for initiating 10X Genomics single cell RNASeq service and to facilitate the workflow through the pipeline.


Biorepository Coordinator: Patrick Catterson


Bioprocessing Expert Staff : Karen Horner


Bioprocessing & Biorepository Staff: Randy Guertin and Jonathan Juba



Location and hours of operation

Hours: Mon - Thurs: 8:30am - 5pm, Same day processing drop off by 2pm

            Fri: 8:30am - 4:30pm, Same day processing drop off by 12pm

Service Location: Blalock 1001A

Mailing Address:  GRCF Biorepository & Cell Center 

                               Johns Hopkins Medical Institutes

                               600 N. Wolfe Street

                               Blalock 1017

                               Baltimore, MD 21287

General Phone:    410-614-5201

Email Contacts:



Links and Resources

  1. GRCF Biorepository & Cell Center Website
  2. GRCF Upcoming Events
  3. GRCF LinkedIn...Follow Us
  4. GRCF Customer Feedback


Name Role Phone Email Location
Melissa Olson, PhD
Director of the GRCF & Director of the Biorepository

Patrick Catterson
Biorepository Coordinator

Karen Horner
Bioprocessing Expert Staff

Kakali Sarkar
Director of the Cell Center

Randy Guertin
Biorepository & Bioprocessing Staff

Jonathan Juba
Biorepository & Bioprocessing Staff


Services & Pricing

Search available services: View: by category alphabetically
10X Genomics Chromium (3)
Biorepository Fees (2)
Blood Processing (13)
Cell Culture (22)
Cells for Distribution (4)
Fees (7)
Fluidigm C1 (3)
Outside Services (4)
Repository Support Services (5)
Shipment Box (3)
Shipment Dry Ice (4)
Shipping Charges (3)
Storage (5)