About ChemoTactics
ChemoTactics was founded in 2013 by chemokine structural biologists and pharmacologists at UC San Diego. Our mission is to provide the chemokine research community with affordable high-quality chemokine reagents. We aim to create novel tools and assays to enable our customers to develop the next generation of advanced therapeutics.
We specialize in the efficient production of high-quality human chemokines for research scientists worldwide. Our products include both unmodified and biotinylated chemokines for flow cytometry, in vivo, drug development, imaging, cell characterization and other techniques. Our expertise lies in recombinant chemokine production which can also be applied to other signaling proteins with high levels of activity. Our chemokines were utilized to help solve the multiple crystal structures of CXCR4 [7]. |
What are Chemokines?
Chemokines are a class of cytokines responsible for the process of cell movement called chemotaxis. These small secreted signaling proteins act as chemical messengers on G-protein coupled chemokine receptors. In humans, there are over 50 chemokines and 19 chemokine receptors known to date.
As chemokines affect various physiological processes involving cell movement they are vital to our overall health and homeostasis. One important example is maintaining the body's defense mechanisms by guiding immune cells to specific sites in the body where they are needed to combat infections or address tissue damage. |
Our Products and Services
Chemokine Proteins
We have off the shelf biotinylated and unconjugated chemokine proteins for research use. We can also provide fluorescent and mutant chemokines upon request.
Protein Expression Services
We offer protein expression and consulting services for all types of proteins and expression systems. Please send us an email to set up a meeting and discuss your specific needs ([email protected]).
Research Institutes using Our Chemokines
Istituto Italiano di Tecnologia, Genova, Italy
Cold Spring Harbor Labs, NY, USA Bristol Myers Squib, USA Caltech, CA USA UC San Diego, CA USA Hannover Medical Center, Germany UCSD Moores Cancer Center, CA USA The Scripps Research Institute (TSRI) La Jolla, CA USA University of Piedmont, Italy Regeneron, USA Sanford Consortium for Regenerative Medicine, CA USA Genentech, USA University of Utah, UT USA University of Monash, Australia University of Houston, TX USA UC Berkley, CA USA Tel Aviv University, Israel Pfizer Global R & D, USA University of Georgia, GA USA NIBST, United Kingdom Case Western Reserve University, USA Merck Serono Geneva Research Center, Switzerland Department of Veterans Affairs Medical Center, USA Uppsala University, Sweden Plus Many More |
Selected Publications with Chemokines Produced by ChemoTactics
- Pisani, A., Donno, R., Valenti, G., Pompa, P. P., Tirelli, N., & Bardi, G. (2022). Chemokine-decorated nanoparticles target specific subpopulations of primary blood mononuclear leukocytes. Nanomaterials, 12(20), 3560. https://doi.org/10.3390/nano12203560
- Pisani, A.; Donno, R.; Gennari, A.; Cibecchini, G.; Catalano, F.; Marotta, R.; Pompa, P.P.; Tirelli, N.; Bardi, G. CXCL12-PLGA/Pluronic Nanoparticle Internalization Abrogates CXCR4-Mediated Cell Migration. Nanomaterials 2020, 10, 2304. https://doi.org/10.3390/nano10112304
- Wang Z, Moresco P, Yan R, Li J, Gao Y, Biasci D, Yao M, Pearson J, Hechtman JF, Janowitz T, Zaidi R, Weiss MJ, Fearon DT. Carcinomas assemble a filamentous CXCL12-keratin-19 coating that suppresses T cell-mediated immune attack. PNAS Jan 2022 Vol. 119 No. 4. https://doi.org/10.1073/pnas.2119463119
- Chatterjee, T., Johnson-Buck, A. Walter, NG. Highly sensitive protein detection by aptamer-based single-molecule kinetic fingerprinting. Biosensors and Bioelectronics. Vol 216 15 Nov 2022. https://doi.org/10.1016/j.bios.2022.114639
- Zhikai Wang, Ran Yan, Jiayun Li, Ya Gao, Philip Moresco, Min Yao, Jaclyn F. Hechtman, Matthew J. Weiss, Tobias Janowitz, Douglas T. Fearon. Pancreatic cancer cells assemble a CXCL12-keratin 19 coating to resist immunotherapy. bioRxiv 776419; doi: https://doi.org/10.1101/776419. Posted: September 4, 2020
- Torretta S., Colombo G., Travelli C, Boumya S., Lim D., Genazzani A., Brolla A. The Cytokine Nicotinamide Phosphoribosyltransferase (eNAMPT; PBEF; Visfatin) Acts as a Natural Antagonist of C-C Chemokine Receptor Type 5 (CCR5). Cells 2020 Feb; 9(2):496. doi 10.3390/cells9020496 PMID: 32098202
- Wu, B., Chien, E.Y., Mol, C.D., Fenalti, G., Liu, W., Katritch, V., Abagyan, R., Brooun, A., Wells, P., Bi, F.C., Hamel, D.J., Kuhn, P., Handel, T.M., Cherezov, V., Stevens, R.C. Structures of the CXCR4 chemokine GPCR with small-molecule and cyclic peptide antagonists. Science, 2010. 330: 1066-1071. PMID: 20929726
- Ervin E. Kara, Iain Comerford, Cameron R. Bastow, Kevin A. Fenix, Wendel Litchfield, Tracey M. Handel, and Shaun R. McColl. Distinct chemokine receptor axes regulate T helper 9 cell trafficking to allergic and autoimmune inflammatory sites. J Immunol., 191:1110-1117, 2013. PMID: 23797668
- M. O'Hayre, C.L. Salanga, T.J. Kipps, D. Messmer, P.C. Dorrestein, T.M. Handel (2010) Elucidating the CXCL12/CXCR4 Signaling Network in Chronic Lymphocytic Leukemia through Phosphoproteomic Analysis. PLoS One. 5:e11716. PMID:
20661426 - T.M. Handel, Z. Johnson, M. Mack, R. Cirillo, V. Muzio, M. Teixiera, M. Déruaz, F. Borlat, T.N.C. Wells, and A.E.I. Proudfoot (2008). An Engineered Monomer of CCL2 has Anti-inflammatory Properties Emphasizing the Importance of Oligomerization for Chemokine Activity In Vivo. J Leukocyte Biology. 84(4):1101-8. PMID: 18662971