Journal of Signal Transduction
Volume 2021 (2021), Article ID 9813429, 1 page
https://doi.org/10.1155/2021/9813429

Expression of Concern

Expression of Concern on “A Novel Interaction between Pyk2 and MAP4K4 Is Integrated with Glioma Cell Migration”

Journal of Signal Transduction

Received 19 May 2021; Accepted 19 May 2021; Published 22 June 2021

Copyright © 2021 Journal of Signal Transduction. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Journal of Signal Transduction would like to express concern with the article titled “A Novel Interaction between Pyk2 and MAP4K4 Is Integrated with Glioma Cell Migration” [1] due to concerns regarding the biological origin of the cell line SF767 used.

Cell line SF767 has been reported to show a DNA fingerprint identical to the cervical cancer cell line ME-180 [2], and hence its suitability as an appropriate model for glioma is in question. The authors did not respond to our requests for clarification and the editorial board therefore wish to make readers aware of the limitations to the interpretation of results in the context of gliomas.

References

J. C. Loftus, Z. Yang, J. Kloss, H. Dhruv, N. L. Tran, and D. L. Riggs, “A Novel Interaction Between Pyk2 and MAP4K4 Is Integrated with Glioma Cell Migration,” Journal of Signal Transduction, vol. 2013, Article ID 956580, 12 pages, 2013.

P. Bady, A.-C. Diserens, V. Castella et al., “DNA fingerprinting of glioma cell lines and considerations on similarity measurements,” Neuro-Oncology, vol. 14, no. 6, pp. 701–711, 2012.