Remote ischemic preconditioning does not influence lectin pathway protein levels in head and neck cancer patients undergoing surgery

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BACKGROUND: Cancer patients who undergo tumor removal, and reconstructive surgery by transfer of a free tissue flap, are at high risk of surgical site infection and ischemia-reperfusion injury. Complement activation through the lectin pathway (LP) may contribute to ischemia-reperfusion injury. Remote ischemic preconditioning (RIPC) is a recent experimental treatment targeting ischemia-reperfusion injury. The study aims were to investigate LP protein plasma levels in head and neck cancer patients compared with healthy individuals, to explore whether RIPC affects LP protein levels in head and neck cancer surgery, and finally to examine the association between postoperative LP protein levels and the risk of surgical site infection.

METHODS: Head and neck cancer patients (n = 60) undergoing tumor resection and reconstructive surgery were randomized 1:1 to RIPC or sham intervention administered intraoperatively. Blood samples were obtained preoperatively, 6 hours after RIPC/sham, and on the first postoperative day. LP protein plasma levels were measured utilizing time-resolved immunofluorometric assays.

RESULTS: H-ficolin and M-ficolin levels were significantly increased in cancer patients compared with healthy individuals (both P ≤ 0.02). Conversely, mannan-binding lectin (MBL)-associated serine protease (MASP)-1, MASP-3, collectin liver-1 (CL-L1), and MBL-associated protein of 44 kilodalton (MAp44) levels were decreased in cancer patients compared with healthy individuals (all P ≤ 0.04). A significant reduction in all LP protein levels was observed after surgery (all P < 0.001); however, RIPC did not affect LP protein levels. No difference was demonstrated in postoperative LP protein levels between patients who developed surgical site infection and patients who did not (all P > 0.13).

CONCLUSIONS: The LP was altered in head and neck cancer patients. LP protein levels were reduced after surgery, but intraoperative RIPC did not influence the LP. Postoperative LP protein levels were not associated with surgical site infection.

Original languageEnglish
Article numbere0230411
JournalPLOS ONE
Volume15
Issue4
Number of pages17
ISSN1932-6203
DOIs
Publication statusPublished - 8 Apr 2020

Bibliographical note

Publisher Copyright:
© 2020 Frederiksen et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

    Research areas

  • COMPLEMENT, MANNAN-BINDING LECTIN, MICROVASCULAR RECONSTRUCTION, MYOCARDIAL-INFARCTION, ORAL-CANCER, PATTERN-RECOGNITION MOLECULES, REPERFUSION INJURY, SERINE PROTEASE-2, SERUM, SURGICAL-SITE INFECTIONS

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