Unjamming and collective migration in MCF10A breast cancer cell lines

Jae Hun Kim, Adrian F. Pegoraro, Amit Das, Stephan A. Koehler, Sylvia Ann Ujwary, Bo Lan, Jennifer A. Mitchel, Lior Atia, Shijie He, Karin Wang, Dapeng Bi, Muhammad H. Zaman, Jin Ah Park, James P. Butler, Kyu Ha Lee, Jacqueline R. Starr, Jeffrey J. Fredberg

Research output: Contribution to journalArticlepeer-review


Each cell comprising an intact, healthy, confluent epithelial layer ordinarily remains sedentary, firmly adherent to and caged by its neighbors, and thus defines an elemental constituent of a solid-like cellular collective [1,2]. After malignant transformation, however, the cellular collective can become fluid-like and migratory, as evidenced by collective motions that arise in characteristic swirls, strands, ducts, sheets, or clusters [3,4]. To transition from a solid-like to a fluid-like phase and thereafter to migrate collectively, it has been recently argued that cells comprising the disordered but confluent epithelial collective can undergo changes of cell shape so as to overcome geometric constraints attributable to the newly discovered phenomenon of cell jamming and the associated unjamming transition (UJT) [1,2,5–9]. Relevance of the jamming concept to carcinoma cells lines of graded degrees of invasive potential has never been investigated, however. Using classical in vitro cultures of six breast cancer model systems, here we investigate structural and dynamical signatures of cell jamming, and the relationship between them [1,2,10,11]. In order of roughly increasing invasive potential as previously reported, model systems examined included MCF10A, MCF10A.Vector; MCF10A.14-3-3ζ; MCF10.ErbB2, MCF10AT; and MCF10CA1a [12–15]. Migratory speed depended on the particular cell line. Unsurprisingly, for example, the MCF10CA1a cell line exhibited much faster migratory speed relative to the others. But unexpectedly, across different cell lines higher speeds were associated with enhanced size of cooperative cell packs in a manner reminiscent of a peloton [9]. Nevertheless, within each of the cell lines evaluated, cell shape and shape variability from cell-to-cell conformed with predicted structural signatures of cell layer unjamming [1]. Moreover, both structure and migratory dynamics were compatible with previous theoretical descriptions of the cell jamming mechanism [2,10,11,16,17]. As such, these findings demonstrate the richness of the cell jamming mechanism, which is now seen to apply across these cancer cell lines but remains poorly understood.

Original languageEnglish
Pages (from-to)706-715
Number of pages10
JournalBiochemical and Biophysical Research Communications
Issue number3
StatePublished - 15 Jan 2020
Externally publishedYes


  • Breast carcinoma
  • Cell shape
  • Collective migration
  • Cooperativity
  • Unjamming

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology


Dive into the research topics of 'Unjamming and collective migration in MCF10A breast cancer cell lines'. Together they form a unique fingerprint.

Cite this