Abstract
Hepatocellular carcinoma (HCC) is the most common form of primary liver cancer in the world with high mortality due to its high potential of metastasis. Epithelial-mesenchymal transition (EMT) plays a key role in the pathogenesis of HCC occurrence and metastasis. Phospholysine phosphohistidine inorganic pyrophosphate phosphatase (LHPP) is a novel tumor suppressor. There is little study about LHPP in human HCC development. In the present study, we aimed to investigate the role of LHPP in human HCC cell metastasis. We analyzed the LHPP expression level in human HCC tissues compared with normal tissues in the public database. We detected the mRNA level and protein level of LHPP in transformed liver cell line (LO2) and human HCC cell lines (MHCC-97 H, MHCC-97L, and HepG2). We performed genetic gain and loss of function experiments with LHPP using small interfering RNA (siRNA) and lentivirus infection. Then, we detected that LHPP suppressed proliferation and promoted apoptosis in hepatocellular carcinoma cell lines. Also, we investigated the role of LHPP in the EMT process. Finally, we examined the effect of LHPP on TGF-β-induced EMT. Interestingly, we also found that LHPP expression is positively regulated tumor suppressor p53. Our data showed that LHPP is significantly decreased in the human HCC tissues and human HCC cell lines compared with normal liver tissues and transformed liver cells. Knockdown of LHPP promotes HCC cell proliferation and metastasis, and LHPP expression levels negatively correlate with EMT-related genes. Furthermore, LHPP inhibits TGF-β-induced EMT in HCC cell lines. These studies validate LHPP as a tumor suppressor in liver cancer and provide a new genetic target for HCC diagnosis and treatment.
Similar content being viewed by others
References
Alqahtani, A., Z. Khan, A. Alloghbi, T. S. Said Ahmed, M. Ashraf & D. M. Hammouda (2019) Hepatocellular carcinoma: molecular mechanisms and targeted therapies. Medicina (Kaunas), 55.
Bakir B, Chiarella AM, Pitarresi JR, Rustgi AK (2020) EMT, MET, plasticity, and tumor metastasis. Trends Cell Biol 30:764–776
Cancer Genome Atlas Research Network, Weinstein JN, Collisson EA, Mills GB, Shaw KR, Ozenberger BA, Ellrott K, Shmulevich I, Sander C, Stuart JM (2013) The Cancer Genome Atlas Pan-Cancer analysis project. Nat Genet 45(10):1113–1120
Consortium C (2015) Sparse whole-genome sequencing identifies two loci for major depressive disorder. Nature 523:588–591
Craig AJJAO, von Felden T, Garcia-Lezana S, Sarcognato AAO (2020) Villanueva Tumour evolution in hepatocellular carcinoma.
Cui L, Gong X, Tang Y, Kong L, Chang M, Geng H, Xu K, Wang F (2016) Relationship between the LHPP gene polymorphism and resting-state brain activity in major depressive disorder. Neural Plast 2016:9162590
Giannelli G, Koudelkova P, Dituri F, Mikulits W (2016) Role of epithelial to mesenchymal transition in hepatocellular carcinoma. J Hepatol 65:798–808
Haupt Y, Maya R, Kazaz A, Oren M (1997) Mdm2 promotes the rapid degradation of p53. Nature 387(6630):296–299
Hindupur SK, Colombi M, Fuhs SR, Matter MS, Guri Y, Adam K, Cornu M, Piscuoglio S, Ng CKY, Betz C, Liko D, Quagliata L, Moes S, Jenoe P, Terracciano LM, Heim MH, Hunter T, Hall MN (2018) The protein histidine phosphatase LHPP is a tumour suppressor. Nature 555:678–682
Hiraishi H, Yokoi F, Kumon A (1998) 3-phosphohistidine and 6-phospholysine are substrates of a 56-kDa inorganic pyrophosphatase from bovine liver. Arch Biochem Biophys 349:381–387
Hou B, Li W, Li J, Ma J, Xia P, Liu Z, Zeng Q, Zhang X, Chang D (2020) Tumor suppressor LHPP regulates the proliferation of colorectal cancer cells via the PI3K/AKT pathway. Oncol Rep 43:536–548
Klutstein M, Nejman D, Greenfield R, Cedar H (2016) DNA methylation in cancer and aging. Cancer Res 76:3446–3450
Kulis M, Esteller M (2010) DNA methylation and cancer. Adv Genet 70:27–56
Lee GA, Hwang KA, Choi KC (2016) Roles of dietary phytoestrogens on the regulation of epithelial-mesenchymal transition in diverse cancer metastasis. Toxins (Basel), 8.
Lesseur C, Diergaarde B, Olshan AF, Wünsch-Filho V, Ness AR, Liu G, Lacko M, Eluf-Neto J, Franceschi S, Lagiou P, Macfarlane GJ, Richiardi L, Boccia S, Polesel J, Kjaerheim K, Zaridze D, Johansson M, Menezes AM, Curado MP, Robinson M, Ahrens W, Canova C, Znaor A, Castellsagué X, Conway DI, Holcátová I, Mates D, Vilensky M, Healy CM, Szeszenia-Dąbrowska N, Fabiánová E, Lissowska J, Grandis JR, Weissler MC, Tajara EH, Nunes FD, de Carvalho MB, Thomas S, Hung RJ, Peters WH, Herrero R, Cadoni G, Bueno-de-Mesquita HB, Steffen A, Agudo A, Shangina O, Xiao X, Gaborieau V, Chabrier A, Anantharaman D, Boffetta P, Amos CI, McKay JD, Brennan P (2016) Genome-wide association analyses identify new susceptibility loci for oral cavity and pharyngeal cancer. Nat Genet 48:1544–1550
Li Y, Zhang X, Zhou X (2019) LHPP suppresses bladder cancer cell proliferation and growth via inactivating AKT/p65 signaling pathway. Biosci Rep, 39.
Li Z, Zhou X, Zhu H, Song X, Gao H, Niu Z, Lu J (2021) Purpurin binding interacts with LHPP protein that inhibits PI3K/AKT phosphorylation and induces apoptosis in colon cancer cells HCT-116. J Biochem Mol Toxicol 35:e22665
Liao L, Duan D, Liu Y, Chen L (2020) LHPP inhibits hepatocellular carcinoma cell growth and metastasis. Cell Cycle 19:1846–1854
Liu M, Jiang L, Guan XY (2014) The genetic and epigenetic alterations in human hepatocellular carcinoma: a recent update. Protein Cell 5:673–691
Liver EAFTSOT, Cancer EOFRATO (2012) EASL-EORTC clinical practice guidelines: management of hepatocellular carcinoma. J Hepatol 56:908–943
Llovet JM, Kelley RK, Villanueva A, Singal AG, Pikarsky E, Roayaie S, Lencioni R, Koike K, Zucman-Rossi J, Finn RS (2021) Hepatocellular carcinoma Nat Rev Dis Primers 7:6
Polimanti R, Wang Q, Meda SA, Patel KT, Pearlson GD, Zhao H, Farrer LA, Kranzler HR, Gelernter J (2017) The interplay between risky sexual behaviors and alcohol dependence: genome-wide association and neuroimaging support for LHPP as a risk gene. Neuropsychopharmacology 42:598–605
Roessler S, Jia HL, Budhu A, Forgues M, Ye QH, Lee JS, Thorgeirsson SS, Sun Z, Tang ZY, Qin LX, Wang XW (2010) A unique metastasis gene signature enables prediction of tumor relapse in early-stage hepatocellular carcinoma patients. Cancer Res 70(24):10202–10212
Sun W, Qian K, Guo K, Chen L, Xiang J, Li D, Wu Y, Ji Q, Sun T, Wang Z (2020) LHPP inhibits cell growth and migration and triggers autophagy in papillary thyroid cancer by regulating the AKT/AMPK/mTOR signaling pathway. Acta Biochim Biophys Sin (Shanghai) 52:382–389
Torre LA, Bray F, Siegel RL, Ferlay J, Lortet-Tieulent J, Jemal A (2015) Global cancer statistics, 2012. CA Cancer J Clin 65:87–108
Uhlén M, Fagerberg L, Hallström BM, Lindskog C, Oksvold P, Mardinoglu A, Sivertsson Å, Kampf C, Sjöstedt E, Asplund A, Olsson I, Edlund K, Lundberg E, Navani S, Szigyarto CA, Odeberg J, Djureinovic D, Takanen JO, Hober S, Alm T, Edqvist PH, Berling H, Tegel H, Mulder J, Rockberg J, Nilsson P, Schwenk JM, Hamsten M, von Feilitzen K, Forsberg M, Persson L, Johansson F, Zwahlen M, von Heijne G, Nielsen J, Pontén F (2015) Proteomics Tissue-based map of the human proteome. Science 347(6220):1260419
Villanueva A (2019) Hepatocellular carcinoma. N Engl J Med 380:1450–1462
Wade M, Wang YV, Wahl GM (2010) The p53 orchestra: Mdm2 and Mdmx set the tone. Trends Cell Biol 201020(5):299–309
Wang D, Ning Z, Zhu Z, Zhang C, Wang P, Meng Z (2021) LHPP suppresses tumorigenesis of intrahepatic cholangiocarcinoma by inhibiting the TGFβ/smad signaling pathway. Int J Biochem Cell Biol 132:105845
Wu, F., Y. Chen & J. Zhu (2020) LHPP suppresses proliferation, migration, and invasion and promotes apoptosis in pancreatic cancer. Biosci Rep, 40.
Xu MY, Chen R, Yu JX, Liu T, Qu Y, Lu LG (2016) AZGP1 suppresses epithelial-to-mesenchymal transition and hepatic carcinogenesis by blocking TGFβ1-ERK2 pathways. Cancer Lett 374:241–249
Yokoi F, Hiraishi H, Izuhara K (2003) Molecular cloning of a cDNA for the human phospholysine phosphohistidine inorganic pyrophosphate phosphatase. J Biochem 133:607–614
Zhang X, Kang H, Xiao J, Shi B, Li X, Chen G (2020) LHPP inhibits the proliferation and metastasis of renal cell carcinoma. Biomed Res Int 2020:7020924
Zheng J, Dai X, Chen H, Fang C, Chen J, Sun L (2018) Down-regulation of LHPP in cervical cancer influences cell proliferation, metastasis and apoptosis by modulating AKT. Biochem Biophys Res Commun 503:1108–1114
Acknowledgements
We thank Dr. Guanbin Song (Chongqing University, Chongqing, China) for sharing the MHCC97H and MHCC97L cell lines.
Funding
This work was supported by the Natural Science Foundation of Chongqing (2021ycjh-bgzxm0169; cstc2021jcyj-cxttX0002cstc), Chongqing Graduate Scientific Research and Innovation Foundation of China (No. CYB19043), the National Natural Science Foundation of China (No. 82002909), Visiting Scholar Foundation of Key Laboratory of Biorheological Science and Technology (Chongqing University), Ministry of Education (CQKLBST-2021-002) and Sichuan Science and Technology Program (2022NSFSC1318).
Author information
Authors and Affiliations
Contributions
L.M. and S.F. executed this study; L.M. wrote the manuscript; X.X. assisted with the cell culture experiments; Y.C. and L.Z. assisted with the Western blots experiments; S.L. proofread the manuscript; L.T. supervised the study and edited the manuscript. The authors declare that all data was generated in-house and that no paper mill was used.
Corresponding authors
Ethics declarations
Conflicts of interest
The authors declare no competing interests.
Additional information
Publisher's note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Key points
1. LHPP acts as a tumor suppressor in HCC and LHPP expression is lower in HCC compared with in normal conditions.
2. LHPP suppresses cell proliferation and migration in HCC cell lines.
3. LHPP suppresses the EMT process in HCC.
4. p53 protein expression is positively regulated by LHPP in HCC.
Rights and permissions
About this article
Cite this article
Ma, L., Sun, H., Xu, X. et al. Tumor suppressor LHPP suppresses cell proliferation and epithelial-mesenchymal transition in hepatocellular carcinoma cell lines. J Physiol Biochem 78, 807–817 (2022). https://doi.org/10.1007/s13105-022-00903-7
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s13105-022-00903-7