PMID- 25195272 OWN - NLM STAT- MEDLINE DCOM- 20150113 LR - 20140908 IS - 2096-7993 (Print) IS - 2096-7993 (Linking) VI - 28 IP - 9 DP - 2014 May TI - [Expression and significance of the cell cycle regulators in laryngeal carcinogenesis detected by flow cytometry]. PG - 635-7 AB - OBJECTIVE: To investigate the expression and clinicopathological significance of the cell cycle regulators cyclin E, cyclin D1, p21, p16 in laryngeal carcinogenesis tissus. METHOD: The expression of cell cycle regulators were detected by flow cytometry method in 23 cases of polyps of vocal cord, 69 cases of laryngeal precancerous change and 33 cases of laryngeal squamous cell carcinoma (LSCC), which tissue was paraffin embedded, sliced, dewaxed, and prepared into the cell suspension, then fluorescently labeled by cyclin E, cyclin D1, p21 and p16. RESULT: In polyps of vocal cord, laryngeal precancerous change and LSCC, The positive expression rate of cyclin E and cyclin D1 were respectively 13.04%, 20.29D, 42.420 and 26.09%, 43.48% and 93.94%. The positive expression rate of p16 and p21 were respectively 61.90%, 40.98%, 14.28% and 47.62%, 23.81%, 26.23%. Those showed the positive expression rate of cyclin D1, cyclin E gradually decreased from vocal cord polyps, laryngeal precancerous change to LSCC, (P < 0.05, P < 0.01), while the positive expression rate of p21 and p16 gradually decreased (P < 0.01). CONCLUSION: The abnormal expression of cell cycle regulatory factors is the molecular events of laryngeal carcinoma. High expression of positive regulatory factors cyclin D1 and cyclin E, and low expression of negative regulatory factors p16 and p21, which showed the imbalance of multiple positive and negative regulatory factors related with cell cycle play an important role in the occurrence of laryngeal cancer. FAU - Chen, Caifeng AU - Chen C FAU - Li, Yunying AU - Li Y FAU - Huang, Yu AU - Huang Y FAU - He, Qinglian AU - He Q FAU - Lin, Wenmin AU - Lin W FAU - Lu, Biaoqing AU - Lu B LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi JT - Lin chuang er bi yan hou tou jing wai ke za zhi = Journal of clinical otorhinolaryngology, head, and neck surgery JID - 101303164 RN - 0 (CCND1 protein, human) RN - 0 (CCNE1 protein, human) RN - 0 (Cyclin E) RN - 0 (Cyclin-Dependent Kinase Inhibitor p16) RN - 0 (Cyclin-Dependent Kinase Inhibitor p21) RN - 0 (Oncogene Proteins) RN - 136601-57-5 (Cyclin D1) SB - IM MH - Adult MH - Cyclin D1/*metabolism MH - Cyclin E/*metabolism MH - Cyclin-Dependent Kinase Inhibitor p16/*metabolism MH - Cyclin-Dependent Kinase Inhibitor p21/*metabolism MH - Female MH - Flow Cytometry MH - Humans MH - Laryngeal Neoplasms/metabolism/*pathology MH - Male MH - Middle Aged MH - Oncogene Proteins/*metabolism EDAT- 2014/09/10 06:00 MHDA- 2015/01/15 06:00 CRDT- 2014/09/09 06:00 PHST- 2014/09/09 06:00 [entrez] PHST- 2014/09/10 06:00 [pubmed] PHST- 2015/01/15 06:00 [medline] PST - ppublish SO - Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi. 2014 May;28(9):635-7.