alexa Augmentation of human natural killer cell activity by interferon: conditions required for boosting and characteristics of the effector cells.
Immunology

Immunology

Journal of Clinical & Cellular Immunology

Author(s): Ortaldo JR, Lang NP, Timonen T, Herberman RB

Abstract Share this page

Abstract Human effector cells of natural killer (NK) activity have been augmented by pretreatment with a partially purified preparation of interferon (IFN-beta). Using the 4-hr 51Cr release assay to measure cytotoxicity, the boosted effector cells, as well as the spontaneous NK cells, were nonphagocytic cells with receptors for the Fc portion of IgG. Augmentation of cytolytic activity occurred: (1) in medium with either fetal calf serum and human serum; (2) in the presence of absence of monocytes; (3) in both sheep RBC rosette-forming and non-rosette-forming populations; and (4) when only the effector cells were pretreated with interferon. This last observation led to the finding that less than or equal to 5 min of contact at 37 degrees C, 22 degrees C, or 4 degrees C with interferon was necessary for augmentation of cytotoxicity. Augmentation kinetics demonstrated significant boosting of NK activity in peripheral blood leukocytes and highly NK-enriched Percoll fractions after 1 hr of contact with IFN-beta or pure IFN-alpha-Collectively, these results indicate that NK boosting with interferon: (1) occurs after a rapid temperature-independent binding to the effector cells; and (2) has a rapid effect on the cytolytic process.
This article was published in J Interferon Res and referenced in Journal of Clinical & Cellular Immunology

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri, Food, Aqua and Veterinary Science Journals

Dr. Krish

[email protected]

1-702-714-7001 Extn: 9040

Clinical and Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemical Engineering and Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001 Extn: 9040

Earth & Environmental Sciences

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

General Science and Health care Journals

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics and Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001 Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Informatics Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Material Sciences Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Mathematics and Physics Journals

Jim Willison

[email protected]

1-702-714-7001 Extn: 9042

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001 Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

John Behannon

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001 Extn: 9042

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords