Milan Mrksich

Last updated
Milan Mrksich
Born (1968-08-15) August 15, 1968 (age 55)
Chicago, Illinois
Education University of Illinois at Urbana-Champaign, California Institute of Technology, Harvard University
Known forSAMDI-MS Biochip Technology, Megamolecules
Title
  • Vice President for Research
  • Henry Wade Rogers Professor of Biomedical Engineering at Northwestern University
Awards
  • Camille Dreyfus Teacher-Scholar Award
  • TR100 Innovator Award
  • Arthur C. Cope Scholar Award
  • American Institute for Medical and Biological Engineering
  • Illinois Bio ICON Innovator Awardee
Scientific career
Fields
Institutions
Website Mrksich Group

Milan Mrksich (born 15 August 1968) is an American chemist. He is the Henry Wade Rogers Professor at Northwestern University with appointments in chemistry, biomedical engineering and cell & developmental biology. [1] He also serves as both the founding director of the center for Synthetic Biology and as an associate director of the Robert H. Lurie Comprehensive Cancer Center at Northwestern. [2] [3] Mrksich also serves as the Vice President for Research of Northwestern University. [4]

Contents

His research involves the chemistry and synthesis of surfaces that contact biological environments. His laboratory has pioneered several technologies, including strategies to integrate living cells with microelectronic devices, methods to enable high throughput assays for drug discovery, and approaches to making synthetic fusion proteins for applications as therapeutics. Most notably, he developed the SAMDI-MS biochip technology that allows for high-throughput quantification of surface-based biochemical assays using MALDI mass spectrometry. Through SAMDI-MS, Mrksich has become a leader in using label-free technology for drug discovery, founding the company SAMDI Tech in 2011 that primarily serves global pharmaceutical companies. [5] His work has been described in over 240 publications (h-index 98), 500 invited talks, and 18 patents. [6]

Early life and education

Milan Mrksich (Serbian Cyrillic : Милан Мркшић[ citation needed ]) was born on August 15, 1968, to Serbian immigrants and raised in Justice, Illinois. [7] He graduated from University of Illinois at Urbana-Champaign in 1989 with a B.S. in chemistry working in the laboratory of Steven Zimmerman on molecular tweezers. He completed his PhD in organic chemistry in 1994 from Caltech under chemist Peter B. Dervan. After graduate school, he was an American Chemical Society postdoctoral fellow at Harvard University under chemist George M. Whitesides before joining the faculty at the University of Chicago in 1996. He worked there for 15 years before joining the faculty at Northwestern University in 2011. [8]

Research history

Early career

Early on as an independent investigator, Mrksich developed and executed the concept of dynamic substrates for cell culture. Here, self-assembled monolayers (SAMs) present cell adhesive ligands with perfect control over density and orientation against a non-adhesive, inert background, such as ethylene glycol. These monolayers can be further modified with electroactive groups that selectively release immobilized ligand when stimulated with an electric potential. Several strategies using this approach were studied in the context of cell signaling, migration, and co-culture. [9] [10] [11] Subsequent cell-based work focused on developing methods to pattern cells on the aforementioned SAMs. The work has mostly utilized microcontact printing to confine adherent cells into defined positions, shapes, and sizes. Ultimately, his group's work has revealed examples of how cellular mechanics and cytoskeletal structure influence phenotype. A primary example of this involved investigating how cell shape exerts control over the differentiation of mesenchymal stem cells. [12] Further work utilized these patterned monolayers to investigate the relationship between various cytoskeletal elements and to observe complex phenotypic differences in patient-derived neuroprogenitor cells. [13] [14] Recent work in the group investigating cell patterning has utilized photoactive adhesive peptides, allowing for local, spatiotemporal control of cell adhesion to study gap junction formation. [15]

SAMDI-MS

While performing much of the early dynamic substrate and cell patterning work, Mrksich also pioneered an assay platform that utilizes SAMs of alkanethiolates on gold. [16] [17] The monolayers contain capture ligands (e.g. biotin or maleimide) that can selectively immobilize a peptide of interest. Subsequently, the monolayer can treated with a specific enzyme or a complex mixture, such as cell lysate, that can modify the peptide through various biological processes (e.g. phosphorylation). For quality control, the monolayers present these peptides against a background of tri(ethylene glycol) groups to prevent the nonspecific adsorption of protein to the surface that could obfuscate the reaction signal and, therefore, enable quantitative and reproducible assays. Most significantly, the monolayers can be characterized with MALDI mass spectrometry in a technique known as SAMDI-MS, which provides the masses of the substituted alkanethiolates and, therefore, the mass change of the immobilized peptide that results from enzyme activity. The method is compatible with standard array formats and liquid handling robotics, allowing a throughput in the tens of thousands of reactions per day. Importantly, the matrix-assisted laser desorption time-of-flight mass spectrometry (MALDI-TOF) analysis provides a fast and quantitative mass shift readout without the need for labels.

Megamolecules

Most recently, Mrksich's group has focused on developing a technique for assembling large molecular structures with perfectly defined structures and orientations, known as Megamolecules. This is primarily done through use of fusion proteins and irreversible inhibitor linkers that assemble stable intermediates. [18] Structure-function relationships, including synthesis of cyclic and antibody-mimic structures have been investigated for potential therapeutic application. [19] [20]

Entrepreneurship

Mrksich has been an active entrepreneur over the past twenty years.  He co-founded SAMDI Tech in 2011, which uses his label-free assay technology to perform high throughput screens for pharmaceutical companies.  SAMDI Tech entered into a partnership with Charles River Laboratories in 2018 and was purchased by CRL in 2023. [21] [22]   Mrksich also co-founded WMR Biomedical in 2008, with George Whitesides and Carmichael Roberts to develop resorbable stent materials; this company was renamed Lyra Therapeutics and had an IPO in 2020 (NASDAQ LYRA) and has drug-eluting stents in clinical trials for ear, nose and throat disease, including chronic rhinosinusitis. [23] Mrksich has recently founded ModuMab Therapeutics, which applies his megamolecule technology to creating antibody mimics for a broad range of diseases.

Service

Mrksich has also been active in serving the scientific community in a number of roles.  These include his current service as the Scientific Director [24] of the Searle Scholars Program, as a member of the Board of Governors [25] for Argonne National Laboratory, and as a member of the Board of Directors [26] for the Camille & Henry Dreyfus Foundation.  His past appointments include service and chairing DARPA’s Defense Sciences Research Council and many program advisory committees.

Awards and honors

Personal life

Milan lives in Hinsdale, Illinois with his two children.[ citation needed ]

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References

  1. ↑ Northwestern University. "Professor Milan Mrksich". McCormick School of Engineering.
  2. ↑ Northwestern University. "Center for Synthetic Biology".
  3. ↑ Northwestern University. "Robert H. Lurie Comprehensive Cancer Center of Northwestern University". Feinberg School of Medicine.
  4. ↑ Samuelson, Kristin (2020). "Milan Mrksich named Northwestern's Vice President for Research". Northwestern Now.
  5. ↑ SAMDI Tech. "About SAMDI Tech".
  6. ↑ Google Scholar. "Milan Mrksich Publishing Record".{{cite web}}: |author= has generic name (help)
  7. ↑ "This drug-testing lab is speed-of-light fast". 16 July 2014.
  8. ↑ United States House of Representatives. "Milan Mrksich Biographical Sketch" (PDF).
  9. ↑ Yousaf, M.N.; Houseman, B.T.; Mrksich, M. (2001). "Turning on Cell Migration with Electroactive Substrates". Angew. Chem. Int. Ed. 40 (6): 1093–1096. doi:10.1002/1521-3773(20010316)40:6<1093::aid-anie10930>3.3.co;2-h.
  10. ↑ Hodneland, C.D.; Mrksich, M. (2000). "Biomolecular Surfaces that Release Ligands Under Electrochemical Control". J. Am. Chem. Soc. 122 (17): 4235–4236. doi:10.1021/ja000419p.
  11. ↑ Yousaf, M.N.; Houseman, B.T.; Mrksich, M. (2001). "Using Electroactive Substrates to Pattern the Attachment of Two Different Cell Types". Proc. Natl. Acad. Sci. 98 (11): 5992–5996. doi: 10.1073/pnas.101112898 . PMC   33411 . PMID   11353818.
  12. ↑ Kilian, K.A.; Bugarija, B.; Lahn, B.T.; Mrksich, M. (2001). "Geometric Cues for Directing the Differentiation of Mesenchymal Stem Cells". Proc. Natl. Acad. Sci. 107 (11): 4872–4877. doi: 10.1073/pnas.0903269107 . PMC   2841932 . PMID   20194780.
  13. ↑ Shabbir, S.H.; Cleland, R.D.; Goldman, R.D.; Mrksich, M. (2014). "Geometric Control of Cytoskeletal Elements: Impact on Vimentin Intermediate Filaments". Biomaterials. 35 (5): 1359–1366. doi:10.1016/j.biomaterials.2013.10.008. PMC   3875369 . PMID   24268665.
  14. ↑ Brennand, J.N.; et, al. (2014). "Geometric Control of Cytoskeletal Elements: Impact on Vimentin Intermediate Filaments". Mol. Psych.: 1–8.
  15. ↑ Bugga, P.; Mrksich, M. (2019). "Sequential Photoactivation of Self-Assembled Monolayers to Direct Cell Adhesion and Migration". Langmuir . 35 (17): 5937–5943. doi:10.1021/acs.langmuir.8b04203. PMC   8262134 . PMID   30943037.
  16. ↑ Houseman, B.T.; Huh, J.H.; Kron, S.J.; Mrksich, M. (2002). "Peptide Chips for the Evaluation of Protein Kinase Activity". Nature Biotechnology. 20 (3): 270–274. doi:10.1038/nbt0302-270. PMID   11875428. S2CID   18043752.
  17. ↑ Su, J.; Mrksich, M. (2002). "Using Mass Spectrometry to Characterize Self-Assembled Monolayers Presenting Peptides, Proteins and Carbohydrates". Angew. Chem. Int. Ed. 41 (24): 4715–4718. doi:10.1002/anie.200290026. PMID   12481336.
  18. ↑ Modica, J.A.; Skarpathiotis, S.; Mrksich, M. (2012). "Modular Assembly of Protein Building Blocks to Create Precisely-Defined MegaMolecules". ChemBioChem. 13 (16): 2331–2334. doi:10.1002/cbic.201200501. PMC   3804166 . PMID   23070998.
  19. ↑ Modica, J.A.; Lin, Y.; Mrksich, M. (2018). "Synthesis of Cyclic Megamolecules". J. Am. Chem. Soc. 140 (20): 6391–6399. doi:10.1021/jacs.8b02665. PMID   29723476. S2CID   13688765.
  20. ↑ Taylor, E.L.; Metcalf, K.J.; Carlotti, B.; Lai, C.-T.; Modica, J.A.; Schatz, G.C.; Mrksich, M.; Goodson, T. (2018). "Long-Range Energy Transfer in Protein Megamolecules". J. Am. Chem. Soc. 140 (46): 15731–15743. doi:10.1021/jacs.8b08208. PMC   6710013 . PMID   30375862.
  21. ↑ "Charles River Expands Strategic Partnership With SAMDI Tech | Charles River Laboratories International, Inc". ir.criver.com. Retrieved 2022-05-25.
  22. ↑ "Drug discovery startup spun out of Northwestern acquired for $50 million". Crain's Chicago Business. 2023-01-30. Retrieved 2023-02-10.
  23. ↑ "Lyra Therapeutics Announces Pricing of Initial Public Offering". www.businesswire.com. 2020-05-01. Retrieved 2022-05-25.
  24. ↑ "Advisory Council". 2022-06-09. Retrieved 2022-09-20.
  25. ↑ "Board of Governors | UChicago Argonne LLC". www.uchicagoargonnellc.org. Retrieved 2022-09-20.
  26. ↑ "About Us". Dreyfus Foundation. Retrieved 2022-09-20.
  27. ↑ "Awards and honors". 25 May 2022.
  28. ↑ "Mrksich elected to board". 26 May 2022.
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