A Mechanogenetic Toolkit for Interrogating Cell Signaling in Space and Time
- Univ. of California, San Francisco, CA (United States). Dept. of Otolaryngology; Univ. of California, Berkeley, CA (United States). Dept. of Materials Science and Engineering; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division
- Univ. of California, San Francisco, CA (United States). Dept. of Otolaryngology; Univ. of California, San Francisco, CA (United States). Dept. of Pharmaceutical Chemistry
- Inst. for Basic Science (IBS), Seoul (Korea, Republic of); Yonsei Univ., Seoul (Korea, Republic of)
- Univ. of California, San Francisco, CA (United States). Dept. of Otolaryngology
- Univ. of California, San Francisco, CA (United States). Dept. of Pharmaceutical Chemistry
- Univ. of California, Berkeley, CA (United States). Dept. of Materials Science and Engineering; Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Materials Sciences Division
- Univ. of California, San Francisco, CA (United States). Dept. of Otolaryngology; Inst. for Basic Science (IBS), Seoul (Korea, Republic of); Yonsei Univ., Seoul (Korea, Republic of)
Tools capable of imaging and perturbing mechanical signaling pathways with fine spatiotemporal resolution have been elusive, despite their importance in diverse cellular processes. The challenge in creating a mechanogenetic toolkit (i.e., selective and quantitative activation of genetically encoded mechanoreceptors) stems from the fact that many mechanically activated processes are localized in space and time yet additionally require mechanical loading to become activated. To address this challenge, we synthesized magnetoplasmonic nanoparticles that can image, localize, and mechanically load targeted proteins with high spatiotemporal resolution. We demonstrate their utility by investigating the cell-surface activation of two mechanoreceptors: Notch and E-cadherin. By measuring cellular responses to a spectrum of spatial, chemical, temporal, and mechanical inputs at the single-molecule and single-cell levels, we reveal how spatial segregation and mechanical force cooperate to direct receptor activation dynamics. This generalizable technique can be utilized to control and understand diverse mechanosensitive processes in cell signaling.
- Research Organization:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC02-05CH11231
- OSTI ID:
- 1545132
- Journal Information:
- Cell, Vol. 165, Issue 6; ISSN 0092-8674
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Similar Records
Using Imaging Methods to Interrogate Radiation-Induced Cell Signaling
Signal transduction pathways involved in mechanotransduction in bone cells