West China Journal of Stomatology ›› 2024, Vol. 42 ›› Issue (6): 716-722.doi: 10.7518/hxkq.2024.2024150

• Basic Research • Previous Articles     Next Articles

Differences in near-infrared fluorescence imaging and histological analysis of cheek mucosa in golden hamsters with different pathological states

Xie Diya1(), Shan Danni1, Zhang Lei1, Chen Sheng1, Na Yingyu2, Wang Zhiyong1()   

  1. 1.Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Research Institute of Stomatology, Nanjing University, Nanjing 210008, China
    2.Dept. of Stomatology, Nanjing Honghua Community Health Service Center, Nanjing 210008, China
  • Received:2024-04-16 Revised:2024-05-16 Online:2024-12-01 Published:2024-11-29
  • Contact: Wang Zhiyong E-mail:wowxdy@163.com;zywangkq@nju.edu.cn
  • Supported by:
    Key R&D Program of Jiangsu Province—Social Development Project(BE2018618);Nanjing Medical Science and Technology Development Project(YKK19089)

Abstract:

Objective To explore and analyze the feasibility of using indocyanine green (ICG) near-infrared fluorescence (NIF) imaging technology for the early diagnosis of oral potential malignant disorders and oral squamous cell carcinoma. Methods 7,12-Dimethylbenz[a]anthracene in acetone solution was used to induce various pathological models of buccal mucosal lesions (mild/moderate dysplasia, severe dysplasia, squamous cell carcinoma) in golden hamster. ICG-NIF was conducted for the quantitative analysis of the fluorescence signal of lesion tissue, and evaluation of the diagnostic and discriminative capabilities of the ICG-NIF technology for mucosal lesions in various pathological states. Immunohistochemical staining was perform to examine the microvessel density (MVD) and microlymphatic vessel density (MLVD) of mucosa in various pathological states and explore the histological reasons underlying the differences in fluorescence signals. Results The results of ICG-NIF fluorescence quantitative analysis reveal the higher fluorescence intensity of mucosal lesions in the experimental group compared with that of the normal mucosa on the control side, with statistical differences (P<0.05). Moreover, the more severe the malignancy of mucosal lesions in the experimental group, the higher the fluorescence intensity. According to histopathological analysis, the malignant progression of mucosal lesions in golden hamsters was accompanied with an increase in MVD (P<0.05) and a decrease in MLVD (P<0.05). Conclusion The abnormal proliferation of mucosal lesions in golden hamsters exhibits a difference in ICG-NIF fluorescence signal compared with normal mucosal tissue. Fluorescence quantitative analysis methods can provide assistance in differentiation and show potential for clinical applications.

Key words: indocyanine green, near-infrared fluorescence imaging, oral potentially malignant disorders, oral squamous cell carcinoma

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