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Anticancer Res. 2018 Feb;38(2):665-670.

Fluorescence-guided Surgery with Splenic Preservation Prevents Tumor Recurrence in an Orthotopic Nude-mouse Model of Human Pancreatic Cancer.

Author information

1
Department of Surgery, University of California, San Diego, CA, U.S.A.
2
AntiCancer, Inc., San Diego, CA, U.S.A.
3
Department of Surgery, Division of Hepatobiliary and Pancreas Surgery, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
4
Graduate School of Medicine, Yokohama City University, Yokohama, Japan.
5
Department of Orthopedic Surgery, University of the Ryukyus, Okinawa, Japan.
6
Department of Pathology, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
7
Department of Surgery, University of California, San Diego, CA, U.S.A. mbouvet@ucsd.edu.
8
Veterans Affairs San Diego Healthcare System, San Diego, CA, U.S.A.

Abstract

AIM:

The purpose of this study was to investigate whether splenectomy influences tumor recurrence after fluorescence-guided surgery (FGS) in an orthotopic nude-mouse model of pancreatic cancer.

MATERIALS AND METHODS:

Green fluorescence protein (GFP)-labeled human pancreatic cancer cells (MiaPaCa2-GFP) were subcutaneously injected into the flanks of nude mice. Subcutaneous tumors were harvested and surgical orthotopic implantation (SOI) was performed in the tail of the pancreas with small tumor fragments. FGS was performed 21 days after SOI. Mice were then randomly divided into FGS-only control group (n=7) and FGS plus splenectomy group (n=8). Tumor recurrence was analyzed by laparotomy 21 days after FGS.

RESULTS:

In the control group, no recurrence was found. In contrast, multiple peritoneal seeded nodules were observed in two mice of the splenectomy group (0% vs. 25%, p=0.467).

CONCLUSION:

Postoperative tumor recurrence only occurred in the splenectomy-treated group suggesting that FGS can spare the patient the morbidity of splenectomy.

KEYWORDS:

Fluorescence-guided surgery; green fluorescent protein; nude mice; orthotopic; pancreatic cancer; recurrence; splenectomy

PMID:
29374688
DOI:
10.21873/anticanres.12270
[Indexed for MEDLINE]

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