title: Establishment of an animal model of spontaneous cervical lymph node metastasis of laryngeal squamous cell carcinoma and obtaining laryngocarcinoma cells with high metastatic potential.
abstract: To establish an animal model of spontaneous cervical lymph node metastasis of laryngeal squamous cell carcinoma and obtain laryngocarcinoma cells with high metastatic potential, laryngeal squamous cell carcinoma cell line HEP-2 in logarithmic phase were inoculated under the lingual margin mucosa of nude mice. HEP-2 cells metastasized to the cervical lymph nodes were isolated, cultured, and re-inoculated under the lingual margin mucosa of nude mice twice. The tumor formation in the tongue and in the cervical lymph nodes was confirmed by pathological examination. Carcinoma cells' ability of invasion and migration was detected by transwell assay. Human specific Alu sequences were detected by PCR, which indicated that the tumor cells originated from human laryngeal squamous cell carcinoma cell line HEP-2. Finally, an animal model of spontaneous lymph node metastasis of laryngeal squamous cell carcinoma was successfully established. Laryngeal squamous cell carcinoma cells with high metastatic potential to lymph nodes were obtained through repeated inoculations. .
authors.affiliation: Department of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, Beijing, People's Republic of China.
authors.forename: L W
authors.initials: LW
authors.lastname: Chen
authors.forename: J L
authors.initials: JL
authors.lastname: Wang
authors.forename: L Y
authors.initials: LY
authors.lastname: Zhang
authors.forename: S M
authors.initials: SM
authors.lastname: Yang
authors.forename: C S
authors.initials: CS
authors.lastname: Li
authors.forename: N
authors.initials: N
authors.lastname: Yu
authors.forename: J D
authors.initials: JD
authors.lastname: Zhao W
authors.forename: L D
authors.initials: LD
authors.lastname: Zhao
authors.forename: K
authors.initials: K
authors.lastname: Li
authors.forename: M B
authors.initials: MB
authors.lastname: Liu
authors.forename: S Q
authors.initials: SQ
authors.lastname: Zhai
mesh_terms: D000818:Animals; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D045744:Cell Line, Tumor; D004195:Disease Models, Animal; D006801:Humans; D007822:Laryngeal Neoplasms / Q000473:pathology*; D008207:Lymphatic Metastasis / Q000473:pathology*; D051379:Mice; D008819:Mice, Nude; D020133:Reverse Transcriptase Polymerase Chain Reaction