bioRxiv preprint doi: https://doi.org/10.1101/2020.04.27.063057; this version posted May 4, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. Overexpressed Nup88 stabilized through interaction with Nup62 promotes NFB dependent pathways in cancer Usha Singh1, Atul Samaiya2, and Ram Kumar Mishra1,* 1 Nups and Sumo Biology Group, Department of Biological Sciences, Indian Institute of Science Education and Research (IISER) Bhopal, Madhya Pradesh, 462066, India. 2 Department of Surgical Oncology, Bansal Hospital, Bhopal, Madhya Pradesh, 462016, India * To whom correspondence should be addressed. Corresponding Author: Phone – +91-755-2691407 Fax - +91-755-2692392 Email-
[email protected] Keywords Nup88; NFB; Head and neck cancer; ubiquitination; cell proliferation; inflammation 1 bioRxiv preprint doi: https://doi.org/10.1101/2020.04.27.063057; this version posted May 4, 2020. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. Abstract Nuclear pores control nucleo-cytoplasmic trafficking and directly or indirectly regulate vital cellular processes. Nup88, important for Crm1 mediated nuclear export process, is overexpressed in many cancers. A positive correlation exists between progressive stages of cancer and Nup88 expression. However, links between Nup88 overexpression and head and neck cancer are insignificant, and mechanistic details are non-existent. Here, we report that Nup88 exhibits positive correlation in head and neck cancer in addition to elevated Nup62 levels. We demonstrate that Nup88 interacts with Nup62 in a cell-cycle and glycosylation independent manner.