[1] Tan FH, Bai YC, Saintigny P, et al. mTOR signalling in head and neck cancer: heads up [J]. Cells, 2019, 8(4): 333. [2] Lin YC, Wu MH, Wei TT, et al. Metformin sensitizes anticancer effect of dasatinib in head and neck squamous cell carcinoma cells through AMPK-dependent ER stress [J]. Oncotarget, 2014, 5(1): 298-308. [3] Wu XY, Yeerna H, Goto Y, et al. Metformin inhibits progression of head and neck squamous cell carcinoma by acting directly on carcinoma-initiating cells [J]. Cancer Res, 2019, 79(17): 4360-4370. [4] Sikka A, Kaur M, Agarwal C, et al. Metformin suppresses growth of human head and neck squamous cell carcinoma via global inhibition of protein translation [J]. Cell Cycle, 2012, 11(7): 1374-1382. [5] Luo Q, Hu D, Hu S, et al. In vitro and in vivo anti-tumor effect of metformin as a novel therapeutic agent in human oral squamous cell carcinoma [J]. BMC Cancer, 2012, 12:517. [6] Heckman-Stoddard BM, DeCensi A, Sahasrabuddhe VV, et al. Repurposing metformin for the prevention of cancer and cancer recurrence [J]. Diabetologia, 2017, 60(9): 1639-1647. [7] Morales DR, Morris AD. Metformin in cancer treatment and prevention [J]. Annu Rev Med, 2015, 66:17-29. [8] Rego DF, Pavan LMC, Elias ST, et al. Effects of metformin on head and neck cancer: A systematic review [J]. Oral Oncol, 2015, 51(5): 416-422. [9] Tsou YA, Chang WD, Lu JJ, et al. The effect of metformin use on hypopharyngeal squamous cell carcinoma in diabetes mellitus patients [J]. BMC cancer, 2019, 19(1):862. [10] Yen YC, Lin C, Lin SW, et al. Effect of metformin on the incidence of head and neck cancer in diabetics [J]. Head Neck-J Sci Spec, 2015, 37(9): 1268-1273. [11] Figueiredo RAD, Weiderpass E, Tajara EH, et al. Diabetes mellitus, metformin and head and neck cancer [J]. Oral Oncol, 2016, 61:47-54. [12] Stokes WA, Eguchi M, Amini A, et al. Survival impact and toxicity of metformin in head and neck cancer: An analysis of the SEER-Medicare dataset [J]. Oral Oncol, 2018, 84:12-19. [13] Hua F, Yu JJ, Hu ZW. Diabetes and cancer, common threads and missing links [J]. Cancer Lett, 2016, 374(1): 54-61. [14] Vancura A, Bu PL, Bhagwat M, et al. Metformin as an anticancer agent [J]. Trends Pharmacol Sci, 2018, 39(10): 867-878. [15] Madera D, Vitale-Cross L, Martin D, et al. Prevention of tumor growth driven by PIK3CA and HPV oncogenes by targeting mTOR signaling with metformin in oral squamous carcinomas expressing OCT3 [J]. Cancer Prev Res, 2015, 8(3): 197-207. [16] Patel H, Younis RH, Ord RA, et al. Differential expression of organic cation transporter OCT-3 in oral premalignant and malignant lesions: potential implications in the antineoplastic effects of metformin [J]. J Oral Pathol Med, 2013, 42(3): 250-256. [17] Vitale-Cross L, Molinolo AA, Martin D, et al. Metformin prevents the development of oral squamous cell carcinomas from carcinogen-induced premalignant lesions[J]. Cancer Prev Res (Phila), 2012, 5(4): 562-573. [18] Siddappa G, Kulsum S, Ravindra DR, et al. Curcumin and metformin-mediated chemoprevention of oral cancer is associated with inhibition of cancer stem cells [J]. Mol Carcinogen, 2017, 56(11): 2446-2460. [19] Gammon L, Mackenzie IC. Roles of hypoxia, stem cells and epithelial-mesenchymal transition in the spread and treatment resistance of head and neck cancer [J]. J Oral Pathol Med, 2016, 45(2): 77-82. [20] Guimaraes TA, Farias LC, Santos ES, et al. Metformin increases PDH and suppresses HIF-1 alpha under hypoxic conditions and induces cell death in oral squamous cell carcinoma [J]. Oncotarget, 2016, 7(34): 55057-55068. [21] Lindsay C, Kostiuk M, Conrad D, et al. Antitumour effects of metformin and curcumin in human papillomavirus positive and negative head and neck cancer cells [J]. Mol Carcinogen, 2019, 58(11): 1946-1959. [22] Curry J, Johnson J, Tassone P, et al. Metformin effects on head and neck squamous carcinoma microenvironment: Window of opportunity trial [J]. Laryngoscope, 2017, 127(8): 1808-1815. [23] Curry JM, Johnson J, Mollaee M, et al. Metformin clinical trial in HPV+ and HPV- head and neck squamous cell carcinoma: impact on cancer cell apoptosis and immune infiltrate [J]. Front Oncol, 2018, 8:436. [24] Miyauchi S, Kim SS, Pang J, et al. Immune modulation of head and neck squamous cell carcinoma and the tumor microenvironment by conventional therapeutics [J]. Clin Cancer Res, 2019, 25(14): 4211-4223. [25] Yaniv B, Sadraei NH, Palackdharry S, et al. Metformin induces pro-tumorigenic cytokines and natural killer cells in patients with locally advanced head and neck squamous cell carcinoma [J]. Int J Radiat Oncol, 2018, 100(5): 1369. [26] 梁兆佳,贺嘉忻,陈紫韵,等.二甲双胍对大鼠口腔黏膜溃疡的疗效之组织学评价[J].口腔医学研究,2019,35(7): 661-665. [27] Amin D, Richa T, Mollaee M, et al. Metformin effects on FOXP3+ and CD8+ T cell infiltrates of head and neck squamous cell carcinoma [J]. Laryngoscope, 2020, 130(9):E490-E498. [28] Skinner HD, Sandulache VC, Ow TJ, et al. TP53 disruptive mutations lead to head and neck cancer treatment failure through inhibition of radiation-induced senescence [J]. Clin Cancer Res, 2012, 18(1): 290-300. [29] Woo SH, Yang LP, Chuang HC, et al. Down-regulation of malic enzyme 1 and 2: Sensitizing head and neck squamous cell carcinoma cells to therapy-induced senescence [J]. Head Neck-J Sci Spec, 2016, 38:E934-E940. [30] Verma A, Rich LJ, Vincent-Chong VK, et al. Visualizing the effects of metformin on tumor growth, vascularity, and metabolism in head and neck cancer [J]. J Oral Pathol Med, 2018, 47(5): 484-491. [31] Gulati S, Desai J, Palackdharry SM, et al. Phase 1 dose-finding study of metformin in combination with concurrent cisplatin and radiotherapy in patients with locally advanced head and neck squamous cell cancer [J]. Cancer, 2020, 126(2): 354-362. [32] Qi XF, Xu WG, Xie JQ, et al. Metformin sensitizes the response of oral squamous cell carcinoma to cisplatin treatment through inhibition of NF-kappa B/HIF-1 alpha signal axis [J]. Sci Rep, 2016, 6:35788. [33] Song C, Tang C, Xu W, et al. Hypoxia-targeting multifunctional nanoparticles for sensitized chemotherapy and phototherapy in head and neck squamous cell carcinoma [J]. Int J Nanomedicine, 2020, 15:347-361. [34] Kuo SZ, Honda CO, Li WT, et al. Metformin results in diametrically opposed effects by targeting non-stem cancer cells but protecting cancer stem cells in head and neck squamous cell carcinoma [J]. Int J Mol Sci, 2019, 20(1):193. [35] Zhang J. Effect of adriamycin combined with metformin on biological function of human tongue cancer SSC-15 cells [J]. Oncol Lett, 2019, 17(6): 5674-5680. [36] Ajzashokouhi AH, Bostan HB, Jomezadeh V, et al. A review on the cardioprotective mechanisms of metformin against doxorubicin [J]. Hum Exp Toxicol, 2020, 39(3):237-248. [37] Harada K, Ferdous T, Harada T, et al. Metformin in combination with 5-fluorouracil suppresses tumor growth by inhibiting the Warburg effect in human oral squamous cell carcinoma [J]. Int J Oncol, 2016, 49(1): 276-284. [38] Mynhardt C, Damelin LH, Jivan R, et al. Metformin-induced alterations in nucleotide metabolism cause 5-fluorouracil resistance but gemcitabine susceptibility in oesophageal squamous cell carcinoma [J]. J Cell Biochem, 2018, 119(1): 1193-1203. [39] Yin XT, Han SW, Song CH, et al. Metformin enhances gefitinib efficacy by interfering with interactions between tumor-associated macrophages and head and neck squamous cell carcinoma cells [J]. Cell Oncol, 2019, 42(4): 459-475. [40] Yin XT, Wei Z, Song CH, et al. Metformin sensitizes hypoxia-induced gefitinib treatment resistance of HNSCC via cell cycle regulation and EMT reversal [J]. Cancer Manag Res, 2018, 10:5785-5798. |