1
|
Yeo YH, Lee YT, Tseng HR, Zhu Y, You S, Agopian VG, Yang JD. Alpha-fetoprotein: Past, present, and future. Hepatol Commun 2024; 8:e0422. [PMID: 38619448 PMCID: PMC11019827 DOI: 10.1097/hc9.0000000000000422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Accepted: 01/29/2024] [Indexed: 04/16/2024] Open
Abstract
Alpha-fetoprotein (AFP) is a glycoprotein that plays an important role in immune regulation with critical involvement in early human development and maintaining the immune balance during pregnancy. Postfetal development, the regulatory mechanisms controlling AFP undergo a shift and AFP gene transcription is suppressed. Instead, these enhancers refocus their activity to maintain albumin gene transcription throughout adulthood. During the postnatal period, AFP expression can increase in the setting of hepatocyte injury, regeneration, and malignant transformation. It is the first oncoprotein discovered and is routinely used as part of a screening strategy for HCC. AFP has been shown to be a powerful prognostic biomarker, and multiple HCC prognosis models confirmed the independent prognostic utility of AFP. AFP is also a useful predictive biomarker for monitoring the treatment response of HCC. In addition to its role as a biomarker, AFP plays important roles in immune modulation to promote tumorigenesis and thus has been investigated as a therapeutic target in HCC. In this review article, we aim to provide an overview of AFP, encompassing the discovery, biological role, and utility as an HCC biomarker in combination with other biomarkers and how it impacts clinical practice and future direction.
Collapse
Affiliation(s)
- Yee Hui Yeo
- Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Yi-Te Lee
- Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Hsian-Rong Tseng
- Department of Molecular and Medical Pharmacology, California NanoSystems Institute, Crump Institute for Molecular Imaging, University of California, Los Angeles, California, USA
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California, USA
| | - Yazhen Zhu
- Department of Molecular and Medical Pharmacology, California NanoSystems Institute, Crump Institute for Molecular Imaging, University of California, Los Angeles, California, USA
- Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California, USA
- Department of Pathology and Laboratory Medicine, Ronald Reagan Medical Center, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Sungyong You
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
- Department of Surgery, Division of Cancer Biology and Therapeutics, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Vatche G. Agopian
- Department of Surgery, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Ju Dong Yang
- Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai Medical Center, Los Angeles, California, USA
- Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
- Comprehensive Transplant Center, Cedars-Sinai Medical Center, Los Angeles, California, USA
| |
Collapse
|
2
|
Liu YM, Zhang W, Cao QY, Xie XY, Li LJ, Fu R, Shao ZH, Song J. [Hemophagocytic syndrome with elevated alpha-fetoprotein: 3 cases report and literature review]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2023; 44:1038-1040. [PMID: 38503530 PMCID: PMC10834879 DOI: 10.3760/cma.j.issn.0253-2727.2023.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Indexed: 03/21/2024]
Affiliation(s)
- Y M Liu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - W Zhang
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Q Y Cao
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - X Y Xie
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - L J Li
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - R Fu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Z H Shao
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - J Song
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| |
Collapse
|
3
|
Chen YF, Liu SY, Cheng QJ, Wang YJ, Chen S, Zhou YY, Liu X, Jiang ZG, Zhong WW, He YH. Intracellular alpha-fetoprotein mitigates hepatocyte apoptosis and necroptosis by inhibiting endoplasmic reticulum stress. World J Gastroenterol 2022; 28:3201-3217. [PMID: 36051342 PMCID: PMC9331527 DOI: 10.3748/wjg.v28.i26.3201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 03/22/2022] [Accepted: 05/14/2022] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Endoplasmic reticulum (ER) stress contributes to the pathogenesis of chronic liver diseases, but how hepatocytes respond to ER stress has not been clarified. Alpha-fetoprotein (AFP) is secreted by hepatoma cells and elevated levels of serum AFP are associated with development of liver malignancies.
AIM To investigate whether and how AFP could regulate ER stress and hepatocyte injury.
METHODS The distribution of AFP and the degrees of ER stress in liver tissues and liver injury were characterized by histology, immunohistochemistry, and Western blot in biopsied human liver specimens, two mouse models of liver injury and a cellular model. The levels of AFP in sera and the supernatants of cultured cells were quantified by chemiluminescence.
RESULTS High levels of intracellular AFP were detected in liver tissues, particularly in the necrotic areas, from patients with chronic liver diseases and mice after carbon tetrachloride (CCl4) administration or induction of ER stress, but not from the controls. The induced intracellular AFP was accompanied by elevated activating transcription factor-6 (ATF6) expression and protein kinase R-like ER kinase (PERK) phosphorylation in mouse livers. ER stress induced AFP expression in LO2 cells and decreased their viability. ATF6, but not PERK, silencing mitigated the ER-stress-induced AFP expression in LO2 cells. Conversely, AFP silencing deteriorated the ER stress-mediated LO2 cell injury and CCl4 administration-induced liver damages by increasing levels of cleaved caspase-3, the C/enhancer binding protein homologous protein expression, mixed lineage kinase domain-like pseudokinase and PERK phosphorylation, but decreasing ATF6 expression.
CONCLUSION ER stress upregulated intra-hepatocyte AFP expression by activating ATF6 during the process of liver injury and intracellular AFP attenuated hepatocyte apoptosis and necroptosis by alleviating ER stress.
Collapse
Affiliation(s)
- Yun-Fen Chen
- Department of Infectious Diseases, The Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou Province, China
| | - Si-Ying Liu
- Department of Infectious Diseases, The Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou Province, China
| | - Qi-Jiao Cheng
- Department of Infectious Diseases, The Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou Province, China
| | - Yu-Jiao Wang
- Department of General Medicine, The Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou Province, China
| | - Shuang Chen
- Department of Infectious Diseases, The Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou Province, China
| | - Yi-Yang Zhou
- Department of Infectious Diseases, The Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou Province, China
| | - Xia Liu
- Department of Infectious Diseases, The Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou Province, China
| | - Zhi-Gang Jiang
- School of Public Health, Zunyi Medical University, Zunyi 563099, Guizhou Province, China
| | - Wei-Wei Zhong
- Department of Endoscopy, Jingmen No.1 People’s Hospital, Jingmen 448000, Hubei Province, China
| | - Yi-Huai He
- Department of Infectious Diseases, The Affiliated Hospital of Zunyi Medical University, Zunyi 563000, Guizhou Province, China
| |
Collapse
|
4
|
Sologova SS, Zavadskiy SP, Mokhosoev IM, Moldogazieva NT. Short Linear Motifs Orchestrate Functioning of Human Proteins during Embryonic Development, Redox Regulation, and Cancer. Metabolites 2022; 12:metabo12050464. [PMID: 35629968 PMCID: PMC9144484 DOI: 10.3390/metabo12050464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/18/2022] [Accepted: 05/19/2022] [Indexed: 11/16/2022] Open
Abstract
Short linear motifs (SLiMs) are evolutionarily conserved functional modules of proteins that represent amino acid stretches composed of 3 to 10 residues. The biological activities of two short peptide segments of human alpha-fetoprotein (AFP), a major embryo-specific and cancer-related protein, have been confirmed experimentally. This is a heptapeptide segment LDSYQCT in domain I designated as AFP14–20 and a nonapeptide segment EMTPVNPGV in domain III designated as GIP-9. In our work, we searched the UniprotKB database for human proteins that contain SLiMs with sequence similarity to the both segments of human AFP and undertook gene ontology (GO)-based functional categorization of retrieved proteins. Gene set enrichment analysis included GO terms for biological process, molecular function, metabolic pathway, KEGG pathway, and protein–protein interaction (PPI) categories. We identified the SLiMs of interest in a variety of non-homologous proteins involved in multiple cellular processes underlying embryonic development, cancer progression, and, unexpectedly, the regulation of redox homeostasis. These included transcription factors, cell adhesion proteins, ubiquitin-activating and conjugating enzymes, cell signaling proteins, and oxidoreductase enzymes. They function by regulating cell proliferation and differentiation, cell cycle, DNA replication/repair/recombination, metabolism, immune/inflammatory response, and apoptosis. In addition to the retrieved genes, new interacting genes were identified. Our data support the hypothesis that conserved SLiMs are incorporated into non-homologous proteins to serve as functional blocks for their orchestrated functioning.
Collapse
Affiliation(s)
- Susanna S. Sologova
- Nelyubin Institute of Pharmacy, Sechenov First Moscow State Medical University, (Sechenov University), 119991 Moscow, Russia; (S.S.S.); (S.P.Z.)
| | - Sergey P. Zavadskiy
- Nelyubin Institute of Pharmacy, Sechenov First Moscow State Medical University, (Sechenov University), 119991 Moscow, Russia; (S.S.S.); (S.P.Z.)
| | - Innokenty M. Mokhosoev
- Department of Biochemistry and Molecular Biology, Pirogov Russian National Research Medical University, 117997 Moscow, Russia;
| | - Nurbubu T. Moldogazieva
- Nelyubin Institute of Pharmacy, Sechenov First Moscow State Medical University, (Sechenov University), 119991 Moscow, Russia; (S.S.S.); (S.P.Z.)
- Correspondence:
| |
Collapse
|
5
|
Zingue S, Mindang ELN, Awounfack FC, Kalgonbe AY, Kada MM, Njamen D, Ndinteh DT. Oral administration of tartrazine (E102) accelerates the incidence and the development of 7,12-dimethylbenz(a) anthracene (DMBA)-induced breast cancer in rats. BMC Complement Med Ther 2021; 21:303. [PMID: 34972512 PMCID: PMC8720219 DOI: 10.1186/s12906-021-03490-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 12/10/2021] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Despite the considerable advances made in the treatment of cancer, it remains a global threat. Tartrazine (E102) is a synthetic dye widely used in food industries; it has recently been shown to induce oxidative stress (a well known risk factor of cancer) in rat tissues. The present work therefore aimed to assess the impact of a regular consumption of tartrazine on the incidence of breast cancer in rats. METHODS Forty (40) Wistar rats aged 55 to 60 days were randomly assigned into 5 groups (n = 8) including two groups serving as normal controls and receiving distilled water (NOR) or tartrazine (NOR + TARZ). The three remaining groups were exposed to the carcinogen DMBA (50 mg/kg) and treated for 20 weeks with either distilled water (DMBA), tartrazine 50 mg/kg (DMBA + TARZ) or a natural dye (DMBA + COL). The parameters evaluated were the incidence, morphology and some biomarkers (CA 15-3, estradiol and α-fetoprotein) of breast cancer. The oxidative status and histomorphology of the tumors were also assessed. RESULTS A regular intake of tartrazine led to an early incidence of tumors (100% in rats that received TARZ only vs 80% in rats that received DMBA only), with significantly larger tumors (p < 0.001) (mass = 3500 mg/kg and volume = 4 cm3). The invasive breast carcinoma observed on the histological sections of the animals of the DMBA + TARZ group was more developed than those of the DMBA group. The increase in serum α-fetoprotein (p < 0.05) and CA 15-3 (p < 0.01) levels corroborate the changes observed in tumors. The presence of oxidative activity in animals of the DMBA + TARZ group was confirmed by a significant decrease (p < 0.001) in the activity of antioxidant enzymes (SOD and catalase) as well as the level of GSH and increase in the level of MDA compared to the rats of the DMBA and NOR groups. CONCLUSION Tartrazine therefore appears to be a promoter of DMBA-induced breast tumorigenesis in rats through its oxidative potential. This work encourages further studies on the mechanisms of action of tartrazine (E102) and its limits of use.
Collapse
Affiliation(s)
- Stéphane Zingue
- Department of Medical and Biomedical Engineering, Higher Technical Teachers' Training College, University of Yaoundé 1, P.O. Box 886, Ebolowa, Cameroon.
- Department of Life and Earth Sciences, Higher Teachers' Training College, University of Maroua, P.O. Box 55, Maroua, Cameroon.
- Centre for Natural Product Research, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg, 2028, South Africa.
| | | | - Florence Charline Awounfack
- Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaounde, Cameroon
| | - Abel Yanfou Kalgonbe
- Department of Life and Earth Sciences, Higher Teachers' Training College, University of Maroua, P.O. Box 55, Maroua, Cameroon
| | - Moustapha Mohamet Kada
- Department of Life and Earth Sciences, Higher Teachers' Training College, University of Maroua, P.O. Box 55, Maroua, Cameroon
| | - Dieudonné Njamen
- Centre for Natural Product Research, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg, 2028, South Africa
- Department of Animal Biology and Physiology, Faculty of Science, University of Yaoundé 1, P.O. Box 812, Yaounde, Cameroon
| | - Derek Tantoh Ndinteh
- Centre for Natural Product Research, Department of Chemical Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg, 2028, South Africa.
| |
Collapse
|
6
|
Moldogazieva NT, Ostroverkhova DS, Kuzmich NN, Kadochnikov VV, Terentiev AA, Porozov YB. Elucidating Binding Sites and Affinities of ERα Agonists and Antagonists to Human Alpha-Fetoprotein by In Silico Modeling and Point Mutagenesis. Int J Mol Sci 2020; 21:ijms21030893. [PMID: 32019136 PMCID: PMC7036865 DOI: 10.3390/ijms21030893] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 01/24/2020] [Accepted: 01/28/2020] [Indexed: 02/06/2023] Open
Abstract
Alpha-fetoprotein (AFP) is a major embryo- and tumor-associated protein capable of binding and transporting a variety of hydrophobic ligands, including estrogens. AFP has been shown to inhibit estrogen receptor (ER)-positive tumor growth, which can be attributed to its estrogen-binding ability. Despite AFP having long been investigated, its three-dimensional (3D) structure has not been experimentally resolved and molecular mechanisms underlying AFP–ligand interaction remains obscure. In our study, we constructed a homology-based 3D model of human AFP (HAFP) with the purpose of molecular docking of ERα ligands, three agonists (17β-estradiol, estrone and diethylstilbestrol), and three antagonists (tamoxifen, afimoxifene and endoxifen) into the obtained structure. Based on the ligand-docked scoring functions, we identified three putative estrogen- and antiestrogen-binding sites with different ligand binding affinities. Two high-affinity binding sites were located (i) in a tunnel formed within HAFP subdomains IB and IIA and (ii) on the opposite side of the molecule in a groove originating from a cavity formed between domains I and III, while (iii) the third low-affinity binding site was found at the bottom of the cavity. Here, 100 ns molecular dynamics (MD) simulation allowed us to study their geometries and showed that HAFP–estrogen interactions were caused by van der Waals forces, while both hydrophobic and electrostatic interactions were almost equally involved in HAFP–antiestrogen binding. Molecular mechanics/Generalized Born surface area (MM/GBSA) rescoring method exploited for estimation of binding free energies (ΔGbind) showed that antiestrogens have higher affinities to HAFP as compared to estrogens. We performed in silico point substitutions of amino acid residues to confirm their roles in HAFP–ligand interactions and showed that Thr132, Leu138, His170, Phe172, Ser217, Gln221, His266, His316, Lys453, and Asp478 residues, along with two disulfide bonds (Cys224–Cys270 and Cys269–Cys277), have key roles in both HAFP–estrogen and HAFP–antiestrogen binding. Data obtained in our study contribute to understanding mechanisms underlying protein–ligand interactions and anticancer therapy strategies based on ERα-binding ligands.
Collapse
Affiliation(s)
- Nurbubu T. Moldogazieva
- Laboratory of Bioinformatics, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (D.S.O.); (N.N.K.); (Y.B.P.)
- Correspondence:
| | - Daria S. Ostroverkhova
- Laboratory of Bioinformatics, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (D.S.O.); (N.N.K.); (Y.B.P.)
- Department of Bioengineering, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia
| | - Nikolai N. Kuzmich
- Laboratory of Bioinformatics, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (D.S.O.); (N.N.K.); (Y.B.P.)
- Department of Drug Safety, I.M. Smorodintsev Research Institute of Influenza, WHO National Influenza Centre of Russia, 197376 Saint Petersburg, Russia
| | - Vladimir V. Kadochnikov
- Department of Food Biotechnology and Engineering, Saint Petersburg National Research University of Information Technologies, Mechanics and Optics, 197101 Saint-Petersburg, Russia;
| | - Alexander A. Terentiev
- Deparment of Biochemistry and Molecular Biology, N.I. Pirogov Russian National Research Medical University, 117997 Moscow, Russia;
| | - Yuri B. Porozov
- Laboratory of Bioinformatics, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia; (D.S.O.); (N.N.K.); (Y.B.P.)
- Department of Food Biotechnology and Engineering, Saint Petersburg National Research University of Information Technologies, Mechanics and Optics, 197101 Saint-Petersburg, Russia;
| |
Collapse
|
7
|
Mohamed BF, Serag WM, Abdelal RM, Elsergany HF. S100A14 protein as diagnostic and prognostic marker in hepatocellular carcinoma. EGYPTIAN LIVER JOURNAL 2019. [DOI: 10.1186/s43066-019-0015-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Abstract
Background
Protein S100A14 has recently been implicated in the progress of several types of cancers. This study aimed to investigate the clinical significance of S100A14 in the diagnosis of hepatocellular carcinoma (HCC).
Results
S100A14 was significantly elevated in the HCC group. A cut-off value for serum S100A14 between the HCC group and cirrhosis group is > 0.47 with a sensitivity of 100% and specificity of 88.57%. S100A14 level was a significant diagnostic factor for HCC and a good reference for HCC progression.
Conclusion
These results suggest that S100A14 is a good diagnostic marker for HCC.
Collapse
|
8
|
Olive fruit (Olea europaea L.): Chemopreventive effect in the rat model of hepatocellular carcinoma. PHARMANUTRITION 2018. [DOI: 10.1016/j.phanu.2018.10.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
9
|
Amereh Z, Hatami N, Shirazi FH, Gholami S, Hosseini SH, Noubarani M, Kamalinejad M, Andalib S, Keyhanfar F, Eskandari MR. Cancer chemoprevention by oleaster (Elaeagnus angustifoli L.) fruit extract in a model of hepatocellular carcinoma induced by diethylnitrosamine in rats. EXCLI JOURNAL 2017; 16:1046-1056. [PMID: 28900384 PMCID: PMC5579409 DOI: 10.17179/excli2017-389] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 06/03/2017] [Indexed: 02/06/2023]
Abstract
Hepatocellular carcinoma (HCC) is a frequent and fatal human cancer with poor diagnosis that accounts for over half a million deaths each year worldwide. Elaeagnus angustifolia L. known as oleaster has a wide range of pharmacological activities. This study aimed to investigate the chemopreventive effect of aqueous extract of E. angustifolia fruit (AEA) against diethylnitrosamine (DEN)-induced HCC in rats. HCC was induced in rats by a single injection of DEN (200 mg/kg) as an initiator. After two weeks, rats were orally administered 2-acetylaminofluorene or 2-AAF (30 mg/kg) as a promoter for two weeks. Oleaster-treated rats were orally pretreated with the increasing doses of AEA two weeks prior to DEN injection that continued until the end of the experiment. In the current study, a significant decrease in serum biomarkers of liver damage and cancer, including alfa-fetoprotein (AFP), gamma glutamyl transpeptidase (GGT), alanine transaminase (ALT), and aspartate transaminase (AST) was observed in AEA-treated rats when compared to HCC rats. Furthermore, the oleaster extract exhibited in vivo antioxidant activity by elevating reduced glutathione (GSH) contents as well as preventing lipid peroxidation in the liver tissues of DEN-treated rats. The relative weight of liver, a prognostic marker of HCC, was also reduced in oleaster-treated rats. To conclude, our results clearly demonstrated that oleaster fruit possesses a significant chemopreventive effect against primary liver cancer induced by DEN in rats. It can be suggested that the preventive activity of oleaster against hepatocarcinogenesis may be mediated through the antioxidant, anti-inflammation, and antimutagenic effects of the fruit.
Collapse
Affiliation(s)
- Zahra Amereh
- Department of Pharmacology and Toxicology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Nasrin Hatami
- Department of Pharmacology and Toxicology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Farshad H Shirazi
- Pharmaceutical Sciences Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Saman Gholami
- Department of Pharmacology and Toxicology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Seyed Hojjat Hosseini
- Department of Physiology and Pharmacology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Maryam Noubarani
- Department of Pharmacology and Toxicology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Mohammad Kamalinejad
- Department of Pharmacognosy, Faculty of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sina Andalib
- Department of Pharmacology and Toxicology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Fariborz Keyhanfar
- Department of Pharmacology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Reza Eskandari
- Department of Pharmacology and Toxicology, School of Pharmacy, Zanjan University of Medical Sciences, Zanjan, Iran
| |
Collapse
|
10
|
Moldogazieva NT, Shaitan KV, Antonov MY, Mokhosoev IM, Levtsova OV, Terentiev AA. Human EGF-derived direct and reverse short linear motifs: conformational dynamics insight into the receptor-binding residues. J Biomol Struct Dyn 2017; 36:1286-1305. [PMID: 28447543 DOI: 10.1080/07391102.2017.1321502] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Short linear motifs (SLiMs) have been recognized to perform diverse functions in a variety of regulatory proteins through the involvement in protein-protein interactions, signal transduction, cell cycle regulation, protein secretion, etc. However, detailed molecular mechanisms underlying their functions including roles of definite amino acid residues remain obscure. In our previous studies, we demonstrated that conformational dynamics of amino acid residues in oligopeptides derived from regulatory proteins such as alpha-fetoprotein (AFP), carcino-embryonic antigen (CEA), and pregnancy specific β1-glycoproteins (PSGs) contributes greatly to their biological activities. In the present work, we revealed the 22-member linear modules composed of direct and reverse AFP14-20-like heptapeptide motifs linked by CxxGY/FxGx consensus motif within epidermal growth factor (EGF), growth factors of EGF family and numerous regulatory proteins containing EGF-like modules. We showed, first, the existence of similarity in amino acid signatures of both direct and reverse motifs in terms of their physicochemical properties. Second, molecular dynamics (MD) simulation study demonstrated that key receptor-binding residues in human EGF in the aligned positions of the direct and reverse motifs may have similar distribution of conformational probability densities and dynamic behavior despite their distinct physicochemical properties. Third, we found that the length of a polypeptide chain (from 7 to 53 residues) has no effect, while disulfide bridging and backbone direction significantly influence the conformational distribution and dynamics of the residues. Our data may contribute to the atomic level structure-function analysis and protein structure decoding; additionally, they may provide a basis for novel protein/peptide engineering and peptide-mimetic drug design.
Collapse
Affiliation(s)
- Nurbubu T Moldogazieva
- a Department of Biochemistry and Molecular Biology , N.I. Pirogov Russian National Research Medical University , 1 Ostrovityanov str., Moscow 117997 , Russian Federation
| | - Konstantin V Shaitan
- b Faculty of Biology, Department of Bioengineering , M.V. Lomonosov Moscow State University , 1 Vorobyevy Gory, Moscow 119991 , Russian Federation
| | - Mikhail Yu Antonov
- c M.K. Ammosov North-Eastern Federal University , 58 Belinskiy str., Yakutsk 677980 , Republic of Sakha (Yakutia) , Russian Federation
| | - Innokenty M Mokhosoev
- a Department of Biochemistry and Molecular Biology , N.I. Pirogov Russian National Research Medical University , 1 Ostrovityanov str., Moscow 117997 , Russian Federation
| | - Olga V Levtsova
- b Faculty of Biology, Department of Bioengineering , M.V. Lomonosov Moscow State University , 1 Vorobyevy Gory, Moscow 119991 , Russian Federation
| | - Alexander A Terentiev
- a Department of Biochemistry and Molecular Biology , N.I. Pirogov Russian National Research Medical University , 1 Ostrovityanov str., Moscow 117997 , Russian Federation
| |
Collapse
|
11
|
Brown AM, Miranda-Alarćon YS, Knoll GA, Santora AM, Banerjee IA. Fetoprotein Derived Short Peptide Coated Nanostructured Amphiphilic Surfaces for Targeting Mouse Breast Cancer Cells. INTERNATIONAL JOURNAL OF NANOSCIENCE 2017. [DOI: 10.1142/s0219581x1650023x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this work, self-assembled tumor targeting nanostructured surfaces were developed from a newly designed amphiphile by conjugating boc protected isoleucine with 2,[Formula: see text] ethylenedioxy bis ethylamine (IED). To target mouse mammary tumor cells, a short peptide sequence derived from the human alpha-fetoprotein (AFP), LSEDKLLACGEG was attached to the self-assembled nanostructures. Tumor targeting and cell proliferation were examined in the presence of nanoscale assemblies. To further obliterate mouse breast tumor cells, the chemotherapeutic drug tamoxifen was then entrapped into the nanoassemblies. Our studies indicated that the targeting systems were able to efficiently encapsulate and release tamoxifen. Cell proliferation studies showed that IED-AFP peptide loaded with tamoxifen decreased the proliferation of breast cancer cells while in the presence of the IED-AFP peptide nanoassemblies alone, the growth was relatively slower. In the presence of human dermal fibroblasts however cell proliferation continued similar to controls. Furthermore, the nanoscale assemblies were found to induce apoptosis in mouse breast cancer cells. To examine live binding interactions, SPR analysis revealed that tamoxifen encapsulated IED-AFP peptide nanoassemblies bound to the breast cancer cells more efficiently compared to unencapsulated assemblies. Thus, we have developed nanoscale assemblies that can specifically bind to and target tumor cells, with increased toxicity in the presence of a chemotherapeutic drug.
Collapse
Affiliation(s)
- Alexandra M. Brown
- Department of Chemistry Fordham University, 441 E. Fordham Road, Bronx, NY 10458, USA
| | | | - Grant A. Knoll
- Department of Chemistry Fordham University, 441 E. Fordham Road, Bronx, NY 10458, USA
| | - Anthony M. Santora
- Department of Chemistry Fordham University, 441 E. Fordham Road, Bronx, NY 10458, USA
| | - Ipsita A. Banerjee
- Department of Chemistry Fordham University, 441 E. Fordham Road, Bronx, NY 10458, USA
| |
Collapse
|
12
|
Mizejewski GJ. Physiology of Alpha-Fetoprotein as a Biomarker for Perinatal Distress: Relevance to Adverse Pregnancy Outcome. Exp Biol Med (Maywood) 2016; 232:993-1004. [PMID: 17720945 DOI: 10.3181/0612-mr-291] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The many physiologic roles of human alpha-fetoprotein (HAFP) and its correlation with perinatal distress/pregnancy outcome are rarely addressed together in the biomedical literature, even though HAFP has long been used as a biomarker for fetal birth defects. Although the well being of the fetus can be monitored by the measurement of gestational age–dependent HAFP in biologic fluid levels (serum, amniotic fluid, urine, and vaginal fluids) throughout pregnancy, the majority of clinical reports reflect largely second trimester and (less likely) first trimester testing due to regulatory clinical restrictions. However, reports of third-trimester and pregnancy term measurement of HAFP levels performed in clinical research and/or investigational settings have gradually increased over the years and have expanded our base knowledge of AFP-associated pregnancy disorders during these stages. The different structural forms of HAFP (isoforms, epitopes, molecular variants, etc.) detected in the various biologic fluid compartments have been limited by antibody recognition of specific epitopic sites developed by the kit manufacturers based on antibody specificity, sensitivity, and precision. Concomitantly, the advances in elucidating the various biologic actions of AFP are opening new vistas toward understanding the physiologic roles of AFP during pregnancy. The present review surveys HAFP as a biomarker for fetal distress during the perinatal period in view of its structural and functional properties. An attempt is then made to relate the AFP fluid levels to adverse pregnancy complications and outcomes. Hence, the present review was divided into two major sections: (I) AFP structure and function considerations and (II) the relationship of AFP levels to the distressed fetus during the third trimester and at term.
Collapse
Affiliation(s)
- Gerald J Mizejewski
- The Wadsworth Center, New York State Department of Health, Albany, NY 12201, USA.
| |
Collapse
|
13
|
Abstract
The increasing incidence of hepatocellular carcinoma (HCC) has led to the need to identify patients at risk for HCC so that a program of screening can be undertaken. Screening for HCC has led to earlier diagnosis of tumors and thus has aided in initiating optimal medical treatment earlier in the disease course. Advances in radiological techniques and the identification of more accurate serum tests to diagnose HCC continue to be important areas of study and exploration. In particular, there have been efforts to develop new tumor markers to aid in the diagnosis of HCC and guide therapy of tumors.
Collapse
Affiliation(s)
- Heather N Simpson
- The University of Alabama School of Medicine, Department of Medicine, Division of Gastroenterology & Hepatology, Boshell Diabetes Building, 1808 7th Avenue South, Birmingham, AL 35233, USA
| | - Brendan M McGuire
- The University of Alabama School of Medicine, Department of Medicine, Division of Gastroenterology & Hepatology, Boshell Diabetes Building, 1808 7th Avenue South, Birmingham, AL 35233, USA.
| |
Collapse
|
14
|
Parpart S, Roessler S, Dong F, Rao V, Takai A, Ji J, Qin L, Ye Q, Jia H, Tang Z, Wang XW. Modulation of miR-29 expression by α-fetoprotein is linked to the hepatocellular carcinoma epigenome. Hepatology 2014; 60:872-83. [PMID: 24798303 PMCID: PMC4146718 DOI: 10.1002/hep.27200] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 04/29/2014] [Indexed: 01/09/2023]
Abstract
UNLABELLED Globally, hepatocellular carcinoma (HCC) accounts for 70%-85% of primary liver cancers and ranks as the second leading cause of male cancer death. Serum alpha-fetoprotein (AFP), normally highly expressed in the liver only during fetal development, is reactivated in 60% of HCC tumors and associated with poor patient outcome. We hypothesize that AFP+ and AFP- tumors differ biologically. Multivariable analysis in 237 HCC cases demonstrates that AFP level predicts poor survival independent of tumor stage (P<0.043). Using microarray-based global microRNA (miRNA) profiling, we found that miRNA-29 (miR-29) family members were the most significantly (P<0.001) down-regulated miRNAs in AFP+ tumors. Consistent with miR-29's role in targeting DNA methyltransferase 3A (DNMT3A), a key enzyme regulating DNA methylation, we found a significant inverse correlation (P<0.001) between miR-29 and DNMT3A gene expression, suggesting that they might be functionally antagonistic. Moreover, global DNA methylation profiling reveals that AFP+ and AFP- HCC tumors have distinct global DNA methylation patterns and that increased DNA methylation is associated with AFP+ HCC. Experimentally, we found that AFP expression in AFP- HCC cells induces cell proliferation, migration, and invasion. Overexpression of AFP, or conditioned media from AFP+ cells, inhibits miR-29a expression and induces DNMT3A expression in AFP- HCC cells. AFP also inhibited transcription of the miR-29a/b-1 locus, and this effect is mediated through c-MYC binding to the transcript of miR-29a/b-1. Furthermore, AFP expression promotes tumor growth of AFP- HCC cells in nude mice. CONCLUSION Tumor biology differs considerably between AFP+ HCC and AFP- HCC; AFP is a functional antagonist of miR-29, which may contribute to global epigenetic alterations and poor prognosis in HCC.
Collapse
Affiliation(s)
- Sonya Parpart
- Laboratory of Human Carcinogenesis, NCI, Bethesda, MD,Tumor Biology Department, Georgetown University, Washington, DC
| | | | - Fei Dong
- Laboratory of Human Carcinogenesis, NCI, Bethesda, MD
| | - Vinay Rao
- Laboratory of Human Carcinogenesis, NCI, Bethesda, MD
| | - Atsushi Takai
- Laboratory of Human Carcinogenesis, NCI, Bethesda, MD
| | - Junfang Ji
- Laboratory of Human Carcinogenesis, NCI, Bethesda, MD
| | - Lun–Xiu Qin
- Liver Cancer Institute and Zhongshan Hospital, Fudan University, Shanghai, China
| | - Qing–Hai Ye
- Liver Cancer Institute and Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hu–Liang Jia
- Liver Cancer Institute and Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhao–You Tang
- Liver Cancer Institute and Zhongshan Hospital, Fudan University, Shanghai, China
| | - Xin Wei Wang
- Laboratory of Human Carcinogenesis, NCI, Bethesda, MD,Correspondence: Xin Wei Wang, National Cancer Institute, 37 Convent Drive, Bethesda, Maryland 20892; ; Phone: 301-496-2099; Fax: 301-496-0497
| |
Collapse
|
15
|
Remarkable Anticancer Activity of Teucrium polium on Hepatocellular Carcinogenic Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2014; 2014:726724. [PMID: 25197311 PMCID: PMC4145797 DOI: 10.1155/2014/726724] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 07/17/2014] [Accepted: 07/17/2014] [Indexed: 02/06/2023]
Abstract
The term cancer has been concomitant with despair, agony, and dreadful death. Like many other diseases, herbal therapy has been used to prevent or suppress cancer. The present study investigated the capability of the decoction of Teucrium polium L. from Lamiaceae family to protect liver cells against hepatocellular carcinoma in carcinogenesis-induced animal model. After 28 weeks of treatment with decoction of Teucrium polium L., serum biochemical markers including ALT, AST, AFP, GGT, ALP, HCY, TNF-α, α2MG, and CBG have been regulated auspiciously. Total antioxidant status also has been increased intensely. Liver lesion score in treated group was lessened and glucocorticoid activity has been intensified significantly. In conclusion, Teucrium polium L. decoction might inhibit or suppress liver cancer development.
Collapse
|
16
|
Abstract
Mammalian alpha-fetoprotein (AFP) as a fetal specific alpha-globulin has long been used as a serum fetal defect/tumor marker for diagnosis and prediction of liver diseases. In the last decade, clinical and basic research data indicated that AFP acts not only as a biomarker but also as an intracellular signal molecule to play multifarious role in the development of hepatocellular carcinoma.
Collapse
|
17
|
Chuang VTG, Otagiri M. Photoaffinity labeling of plasma proteins. Molecules 2013; 18:13831-59. [PMID: 24217326 PMCID: PMC6270137 DOI: 10.3390/molecules181113831] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 10/22/2013] [Accepted: 11/04/2013] [Indexed: 12/20/2022] Open
Abstract
Photoaffinity labeling is a powerful technique for identifying a target protein. A high degree of labeling specificity can be achieved with this method in comparison to chemical labeling. Human serum albumin (HSA) and α1-acid glycoprotein (AGP) are two plasma proteins that bind a variety of endogenous and exogenous substances. The ligand binding mechanism of these two proteins is complex. Fatty acids, which are known to be transported in plasma by HSA, cause conformational changes and participate in allosteric ligand binding to HSA. HSA undergoes an N-B transition, a conformational change at alkaline pH, that has been reported to result in increased ligand binding. Attempts have been made to investigate the impact of fatty acids and the N-B transition on ligand binding in HSA using ketoprofen and flunitrazepam as photolabeling agents. Meanwhile, plasma AGP is a mixture of genetic variants of the protein. The photolabeling of AGP with flunitrazepam has been utilized to shed light on the topology of the protein ligand binding site. Furthermore, a review of photoaffinity labeling performed on other major plasma proteins will also be discussed. Using a photoreactive natural ligand as a photolabeling agent to identify target protein in the plasma would reduce non-specific labeling.
Collapse
Affiliation(s)
- Victor Tuan Giam Chuang
- School of Pharmacy, Faculty of Health Sciences, Curtin Health Innovation Research Institute, Curtin University, GPO Box U1987, Perth 6845, WA, Australia
- Authors to whom correspondence should be addressed; E-Mails: (V.T.G.C.); (M.O.); Tel.: +61-8-9266-1983 (V.T.G.C.); Fax: +61-8-9266-2769 (V.T.G.C.); Tel./Fax: +81-96-326-3887 (M.O.)
| | - Masaki Otagiri
- Graduate School of Pharmaceutical Sciences, DDS Research Institute, Sojo University, Kumamoto 860-0082, Japan
- Authors to whom correspondence should be addressed; E-Mails: (V.T.G.C.); (M.O.); Tel.: +61-8-9266-1983 (V.T.G.C.); Fax: +61-8-9266-2769 (V.T.G.C.); Tel./Fax: +81-96-326-3887 (M.O.)
| |
Collapse
|
18
|
Abstract
Alpha-fetoprotein (AFP) is a major mammalian embryo-specific and tumor-associated protein that is also present in small quantities in adults at normal conditions. Discovery of the phenomenon of AFP biosynthesis in carcinogenesis by G. Abelev and Yu. Tatarinov 50 years ago, in 1963, provoked intensive studies of this protein. AFPs of some mammalian species were isolated, purified and physico-chemically and immunochemically characterized. Despite the significant success in study of AFP, its three-dimensional structure, mechanisms of receptor binding along with a structure of the receptor itself and, what is the most important, its biological role in embryo- and carcinogenesis remain still obscure. Due to difficulties linked with methodological limitations, research of AFP was to some extent extinguished by the 1990 s. However, over the last decade a growing number of investigations of AFP and its usage as a tumor-specific biomarker have been observed. This was caused by the use of new technologies, primarily, computer-based and genetic engineering approaches in studying of this very important oncodevelopmental protein. Our review summarizes efforts of different scientific groups throughout the world in studying AFP for 50 years with emphasis on detailed description of recent achievements in this field.
Collapse
|
19
|
Moldogazieva NT, Terentiev AA, Antonov MY, Kazimirsky AN, Shaitan KV. Correlation between biological activity and conformational dynamics properties of tetra- and pentapeptides derived from fetoplacental proteins. BIOCHEMISTRY (MOSCOW) 2012; 77:469-84. [PMID: 22813588 DOI: 10.1134/s0006297912050070] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this work, using molecular dynamics simulation, we study conformational and dynamic properties of biologically active penta- and tetrapeptides derived from fetoplacental proteins such as alpha-fetoprotein, pregnancy specific β1-glycoprotein, and carcinoembryonic antigen. Existence of correlation between flexibility of peptide backbone and biological activity of the investigated peptides was shown. It was also demonstrated that flexibility of peptide backbone depends not only on its length, but also on the presence of reactive functional groups in amino acid side chains that participate in intramolecular interactions. Peptides that demonstrate similar biological effects in regulation of proliferation of lymphocytes and expression of differentiation antigens on their surface (LDSYQCT, PYECE, YECE, and YVCE) are characterized by rigidity of their peptide backbone. Increased backbone flexibility in peptides PYQCE, YQCE, SYKCE, YQCT, YQCS, YVCS, YACS, and YACE is correlated with decreased biological activity. Conformational mobility of amino acid residues does not depend on physicochemical properties only, but also on intramolecular interactions. So, evolutionary restrictions should exist to maintain such interactions in the environment of functionally important sites.
Collapse
Affiliation(s)
- N T Moldogazieva
- Russian State Medical University, ul. Ostrovityanova 1, 117997 Moscow, Russia.
| | | | | | | | | |
Collapse
|
20
|
Terentiev AA, Moldogazieva NT, Levtsova OV, Maximenko DM, Borozdenko DA, Shaitan KV. Modeling of three dimensional structure of human alpha-fetoprotein complexed with diethylstilbestrol: docking and molecular dynamics simulation study. J Bioinform Comput Biol 2012; 10:1241012. [PMID: 22809347 DOI: 10.1142/s0219720012410120] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
It has been long experimentally demonstrated that human alpha-fetoprotein (HAFP) has an ability to bind immobilized estrogens with the most efficiency for synthetic estrogen analog - diethylstilbestrol (DES). However, the question remains why the human AFP (HAFP), unlike rodent AFP, cannot bind free estrogens. Moreover, despite the fact that AFP was first discovered more than 50 years ago and is presently recognized as a "golden standard" among onco-biomarkers, its three-dimensional (3D) structure has not been experimentally solved yet. In this work using MODELLER program, we generated 3D model of HAFP on the basis of homology with human serum albumin (HSA) and Vitamin D-binding protein (VTDB) with subsequent molecular docking of DES to the model structure and molecular dynamics (MD) simulation study of the complex obtained. The model constructed has U-shaped structure in which a cavity may be distinguished. In this cavity the putative estrogen-binding site is localized. Validation by RMSD calculation and with the use of PROCHECK program showed good quality of the model and stability of extended region of four alpha-helical structures that contains putative hormone-binding residues. Data extracted from MD simulation trajectory allow proposing two types of interactions between amino acid residues of HAFP and DES molecule: (1) hydrogen bonding with involvement of residues S445, R452, and E551; (2) hydrophobic interactions with participation of L138, M448, and M548 residues. A suggestion is made that immobilization of the hormone using a long spacer provides delivery of the estrogen molecule to the binding site and, thereby, facilitates interaction between HAFP and the hormone.
Collapse
Affiliation(s)
- Alexander A Terentiev
- Department of Biochemistry, Russian State Medical University, Moscow 117997, Russia.
| | | | | | | | | | | |
Collapse
|
21
|
Shiota G, Miura N. Biomarkers for hepatocellular carcinoma. Clin J Gastroenterol 2012; 5:177-82. [PMID: 26182317 DOI: 10.1007/s12328-012-0301-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Accepted: 04/12/2012] [Indexed: 12/17/2022]
Abstract
Hepatocellular carcinoma (HCC) ranks high among the most common and fatal cancers in the world. HCC develops from chronic liver diseases, especially from hepatitis C virus-related and hepatitis B virus (HBV)-related liver diseases. In this sense, useful biomarkers for HCC detection for the patients at risk of HCC are quite important. Recently, new therapies for HCC have been developed, and the prognosis of the patients has improved. However, considering the recurrence rate of HCC after treatment is very high, biomarkers that detect recurrence at an early stage are also required. In addition, since new drugs such as multikinase inhibitors have been introduced to the clinical scene, surrogate biomarkers to predict the effectiveness of treatment will be required in the near future. So far, many biomarkers for HCC have been developed, and their clinical usefulness has been assessed. As a result, several biomarkers for HCC are widely used. However, investigations to discover more useful biomarkers that fit in clinical settings are under way. In this review article, biomarkers for HCC are overviewed to examine their clinical usefulness.
Collapse
Affiliation(s)
- Goshi Shiota
- Division of Molecular and Genetic Medicine, Department of Genetic Medicine and Regenerative Therapeutics, Graduate School of Medicine, Tottori University, Yonago, 683-8503, Japan.
| | - Norimasa Miura
- Division of Pharmacotherapeutics, Department of Pathophysiological and Therapeutic Science, Faculty of Medicine, Tottori University, Yonago, 683-8503, Japan
| |
Collapse
|
22
|
Moldogazieva NT, Shaitan KV, Antonov MY, Vinogradova IK, Terentiev AA. Influence of intramolecular interactions on conformational and dynamic properties of analogs of heptapeptide AFP(14-20). BIOCHEMISTRY (MOSCOW) 2012; 76:1321-36. [PMID: 22150277 DOI: 10.1134/s0006297911120054] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Conformational and dynamic properties of proteins and peptides play an important role in their functioning. However, mechanisms that underlie this influence have not been fully elucidated. In the present work we computationally constructed analogs of heptapeptide AFP(14-20) (LDSYQCT) - one of the biologically active sites of human α-fetoprotein (AFP) - to study their conformational and dynamic properties using molecular dynamics simulation. Analogs were obtained by point substitutions of amino acid residues taking into account differences in their physicochemical properties and also on the basis of analysis of amino acid substitutions in the AFP(14-20)-like motifs revealed in different physiologically active proteins. It is shown that changes in conformational mobility of amino acid residues of analogs are due to disruption or arising of intramolecular interactions that, in turn, determine existence of steric restrictions during rotation around covalent bonds of the peptide backbone. Substitution of an amino acid by another one with significant difference in physicochemical properties may not lead to remarkable changes in conformational and dynamic properties of the peptide if intramolecular interactions remain unchanged.
Collapse
Affiliation(s)
- N T Moldogazieva
- Russian State Medical University, ul. Ostrovityanova 1, 117997 Moscow, Russia.
| | | | | | | | | |
Collapse
|
23
|
Li CY, Li G. Biological functions of alpha-fetoprotein. Shijie Huaren Xiaohua Zazhi 2011; 19:1436-1440. [DOI: 10.11569/wcjd.v19.i14.1436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Alpha-fetoprotein (AFP) is a well-known biomarker for the diagnosis of hepatocellular carcinoma. Extracellular AFP can act as a carrier to transport a variety of ligands or as a growth regulator to control the growth of tumor cells, while intracellular AFP can bind to and interact with transcription factors or some key proteins and function as a signal molecule to regulate cell proliferation or apoptosis. This paper provides novel insights into the mechanisms underlying the role of AFP in carcinogenesis and tumor chemotherapy.
Collapse
|
24
|
Gonzalez SA, Keeffe EB. Diagnosis of hepatocellular carcinoma: role of tumor markers and liver biopsy. Clin Liver Dis 2011; 15:297-306, vii-x. [PMID: 21689614 DOI: 10.1016/j.cld.2011.03.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Early diagnosis of hepatocellular carcinoma (HCC) has a significant impact on survival by implementation of effective treatment strategies, including hepatic resection, locoregional ablative therapy, and liver transplantation. The use of serum tumor markers and biopsy are particularly important for diagnosis of small hepatic lesions with atypical features on imaging studies. α-Fetoprotein remains the most frequently used tumor marker for the diagnosis of HCC. The development of novel serum biomarkers for HCC, identification of molecular markers for tissue immunohistochemistry, and emergence of new diagnostic techniques such as proteomic profiling may improve the early detection rate of HCC in the future.
Collapse
Affiliation(s)
- Stevan A Gonzalez
- Division of General and Transplant Hepatology, Baylor Regional Transplant Institute, Baylor All Saints Medical Center at Fort Worth, Baylor University Medical Center at Dallas, 1250 8th Avenue, Suite 515, Fort Worth, TX 76104, USA
| | | |
Collapse
|
25
|
Abstract
BACKGROUND The hepatocellular carcinoma is one of the most common malignant tumors and carries a poor survival rate. The management of patients at risk for developing HCC remains intricate. METHODS A literature search identified potential markers for hepatocellular carcinoma. These markers were analysed and justification was provided for these factors' inclusion to (or exclusion from) the markers of hepatocellular carcinoma (HCC). A search of the literature was made using cancer literature and the PubMed database for the following keywords: "markers and HCC," "Lens culinaris agglutinin reactive AFP (AFP-L3) and HCC," "Des-γ-carboxy prothrombin (DCP) and HCC," "Glypican-3 and HCC," "Chromogranin A and HCC," "Transforming growth factor β1(TGF) and HCC," "α-l-fucosidase (AFU) and HCC," "Golgi protein-73 (GP73) and HCC," "Hepatocyte growth factor (HGF) and HCC," "Nervous growth factor (NGF) and HCC." CONCLUSIONS Despite the large number of studies devoted to the immunohistochemistry of HCC, at the present time, the absolute positive and negative markers for HCC are still lacking, and even those characterized by very high sensitivity and specificity do not have an universal diagnostic usefulness. Given the poor response to current therapies, a better understanding of the molecular pathways active in this disease could potentially provide new targets for therapy. However, AFP shows a low sensitivity, therefore other biomarkers have been developed to make an early diagnosis and improve patients' prognosis.
Collapse
|
26
|
Yang H, Xiong F, Qi R, Liu Z, Lin M, Rui J, Su J, Zhou R. LAPTM4B-35 is a novel prognostic factor of hepatocellular carcinoma. J Surg Oncol 2010; 101:363-9. [DOI: 10.1002/jso.21489] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
27
|
Terentiev AA, Moldogazieva NT, Shaitan KV. Dynamic proteomics in modeling of the living cell. Protein-protein interactions. BIOCHEMISTRY (MOSCOW) 2010; 74:1586-607. [DOI: 10.1134/s0006297909130112] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
28
|
Abstract
Hepatocellular carcinoma (HCC) is one of the commonest cancers worldwide, particularly in parts of the developing world, and is increasing in incidence. This article reviews the current modalities employed for the diagnosis of HCC, including serum markers, radiological techniques and histological evaluation, and summarises international guidelines for the diagnostic approach to HCC.
Collapse
|
29
|
Debruyne EN, Delanghe JR. Diagnosing and monitoring hepatocellular carcinoma with alpha-fetoprotein: new aspects and applications. Clin Chim Acta 2008; 395:19-26. [PMID: 18538135 DOI: 10.1016/j.cca.2008.05.010] [Citation(s) in RCA: 156] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2008] [Revised: 05/09/2008] [Accepted: 05/11/2008] [Indexed: 12/15/2022]
Abstract
Hepatocellular carcinoma is the 5th most common cancer in the world. Prognosis for this disease is poor since hepatocellular carcinoma is mostly diagnosed at an advanced stage. Serum alpha-fetoprotein (AFP) is one of the most common diagnostic markers for hepatocellular carcinoma. However, its diagnostic value is more and more questioned. Therefore, research has focussed on AFP related parameters (AFP mRNA and AFP glycoforms). The aim of this paper is to review the present knowledge on AFP and its related parameters in diagnosing and monitoring HCC. AFP related parameters can be arranged in two types: AFP mRNA and AFP glycoforms. AFP mRNA is a potentially prognostic marker and AFP mRNA assays are based on PCR techniques. The AFP glycoforms have diagnostic potential and assays are based on isoelectric focussing and lectin affinity electrophoretic methods. Up to now the diagnostic use of the AFP related parameters is limited. Although some of them are recommended as a complementary test, they cannot (yet) replace serum AFP as the golden standard of diagnostic markers for hepatocellular carcinoma.
Collapse
Affiliation(s)
- Evi N Debruyne
- Department of Clinical Chemistry, Ghent University, Gent, Belgium
| | | |
Collapse
|
30
|
Sun YL, Liu F, Lu HZ, Lv N, Zhou LP, Cai JQ, Liu SM, Zhao XH. Expression of IQGAP2 and its clinical significance in hepatocellular carcinoma. Shijie Huaren Xiaohua Zazhi 2008; 16:1309-1316. [DOI: 10.11569/wcjd.v16.i12.1309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the expression of IQ motif containing GTPase activating protein 2 (IQGAP2) and its correlation with the clinicopathological parameters in hepatocellular carcinoma (HCC), and to reveal the potential mechanisms of IQGAP2 underlying human hepatocarcinogenesis.
METHODS: Western blot, immunofluorescence staining and immunohistochemical staining (IHC) were used to detect the expression and subcellular localization of IQGAP2 in 7 liver cancer and normal liver cell lines, as well as in 51 HCC tissue specimens. Meanwhile, the corresponding clinical data were analyzed retrospectively.
RESULTS: Only two liver cancer cell lines, HepG2 and Hep3B, expressed IQGAP2 at the protein level. In addition, immunofluorescence results revealed that IQGAP2 was localized in cytoplasm and nuclei. Apparent nucleolus and karyotheca staining was observed in HepG2 cells. Furthermore, histological validation of clinical samples showed that IQGAP2 expression was significantly down-regulated in tumor tissues (56.9%, 29/51). Meanwhile, the expression of IQGAP2 was associated with tumor size, AJCC staging and alpha-fetoprotein (AFP) expression level (P = 0.020; P = 0.017; P = 0.002). The immunohistochemical staining results from 38 HCC specimens showed that IQGAP2 was mainly localized at cytoplasm in the tumor and adjacent normal liver cells. In addition, partial cells had cell membrane and nuclear localization. However, definite association was not observed between IQGAP2 levels and tumor size, histological degree, AJCC staging or AFP expression status.
CONCLUSION: IQGAP2 expression is down-regulated in tumor tissues of HCC cases, and IQGAP2 may be a potential marker and tumor suppressor gene involved in HCC. These novel findings may provide a basis for the determination of mechanism(s) underlying human hepatocarcinogenesis.
Collapse
|
31
|
Terentiev AA, Moldogazieva NT. Cell adhesion proteins and α-fetoprotein. Similar structural motifs as prerequisites for common functions. BIOCHEMISTRY (MOSCOW) 2007; 72:920-35. [DOI: 10.1134/s0006297907090027] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
32
|
Mizejewski GJ. The alpha-fetoprotein-derived growth inhibitory peptide 8-mer fragment: review of a novel anticancer agent. Cancer Biother Radiopharm 2007; 22:73-98. [PMID: 17627416 DOI: 10.1089/cbr.2006.343] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
This review describes the antigrowth and anticancer activities of the alpha-fetoprotein (AFP)-derived growth inhibitory peptide (GIP) 8-mer fragment. The 8-amino acid peptide (GIP-8) comprises the carboxy-terminal portion of a 34-amino acid peptide (GIP-34) previously identified as an occult epitopic segment of the full-length human AFP molecule. The GIP-8 segment has been chemically synthesized, purified, characterized, and bioassayed. The purified 8-mer segment was characterized as a random coil (disordered) structure extending from a C-terminal beta-hairpin that forms a horseshoe-shaped partially cyclic octapeptide; this structure can be formulated into a fully cyclic form by the addition of asparagine or glutamine residues. The pharmacophore of the octo- and nanopeptide forms is largely composed of a PXXP motif known to interact with Src-3 (SH3) domains of serine/theronine kinases. The GIP-8 has been shown to be growth-suppressive largely in estradiol (E2)-dependent neonatal and tumor-cell proliferation models and to inhibit tumor-cell adhesion to extracellular matrices. The 8-mer GIP displays antigrowth properties in immature mouse uterine cells and anticancer cell proliferation traits in estrogen receptor positive (ER(+)), but not (ER()) negative breast tumor cells. Even though its mechanism of action has not been fully elucidated, GIP-8 has been shown by computer modeling to dock with the extracellular loops of G-coupled seven transmembrane helical-like receptors, which could possibly interfere with signal transduction through MAP kinase pathways. It was apparent that the GIP-8 derived from the 34-mer GIP fragment of HAFP represented an E2-sensitive growth inhibitory motif, which allows the participation in cellular events, such as receptor binding, contact inhibition, extracellular matrix adhesion, angiogenesis, and T-cell activation. Thus, it was proposed that the 8-mer fragment derived from GIP could potentially serve as a lead compound for targeted cancer therapeutic agents of the biologic-response modifier type.
Collapse
Affiliation(s)
- Gerald J Mizejewski
- Diagnostic Oncology Section, Division of Molecular Medicine, Wadsworth Center, New York State Department of Health, Albany, NY 12201, USA.
| |
Collapse
|
33
|
Moldogazieva NT, Terentiev AA, Kazimirsky AN, Antonov MY, Shaitan KV. Conformational dynamics of human alpha-fetoprotein-derived heptapeptide LDSYQCT analogs. BIOCHEMISTRY (MOSCOW) 2007; 72:529-39. [PMID: 17573707 DOI: 10.1134/s0006297907050094] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Conformational dynamics of a biologically active fragment of alpha-fetoprotein, the heptapeptide LDSYQCT, and its analogs obtained by site-directed substitutions of amino acid residues were studied. The conformational dynamics of the peptide were conservative under the substitutions Y17F, Y17S, and D15E. Substitutions C19A and S16V resulted only in local changes in the dynamic behavior of the peptide. Chemical modification of cysteine (C19) or dimerization of the peptide by producing a disulfide bond between cysteine residues of two parallel peptide chains, as well as the substitutions C19G, C19S, Q18E, and D15N changed a set of possible conformations and dynamic behavior of all amino acid residues. The most significant changes were caused by substitution of uncharged amino acid residues by charged ones, and vice versa.
Collapse
|
34
|
Grizzi F, Franceschini B, Hamrick C, Frezza EE, Cobos E, Chiriva-Internati M. Usefulness of cancer-testis antigens as biomarkers for the diagnosis and treatment of hepatocellular carcinoma. J Transl Med 2007; 5:3. [PMID: 17244360 PMCID: PMC1797003 DOI: 10.1186/1479-5876-5-3] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2006] [Accepted: 01/23/2007] [Indexed: 12/11/2022] Open
Abstract
Despite advances in our cellular and molecular knowledge, hepatocellular carcinoma (HCC) remains one of the major public health problems throughout the world. It is now known to be highly heterogeneous: it encompasses various pathological entities and a wide range of clinical behaviors, and is underpinned by a complex array of gene alterations that affect supra-molecular processes. Four families of HCC tumour markers have been recently proposed: a) onco-fetal and glycoprotein antigens; b) enzymes and iso-enzymes; c) cytokines and d) genes. A category of tumour-associated antigens called cancer-testis (CT) antigens has been identified and their encoding genes have been extensively investigated. CT antigens are expressed in a limited number of normal tissues as well as in malignant tumors of unrelated histological origin, including the liver. Given that cancers are being recognized as increasingly complex, we here review the role of CT antigens as liver tumour biomarkers and their validation process, and discuss why they may improve the effectiveness of screening HCC patients and help in determining the risk of developing HCC.
Collapse
Affiliation(s)
- Fabio Grizzi
- Laboratories of Quantitative Medicine, Istituto Clinico Humanitas IRCCS, Via Manzoni 56, 20089 Rozzano, Milan, Italy
| | - Barbara Franceschini
- Laboratories of Quantitative Medicine, Istituto Clinico Humanitas IRCCS, Via Manzoni 56, 20089 Rozzano, Milan, Italy
| | - Cody Hamrick
- Department of Microbiology & Immunology, Texas Tech University Health Science Center and Southwest Cancer Treatment and Research Center, 3601 4th St., 79430 Lubbock, Texas, USA
- Department of Hematology & Oncology, Texas Tech University Health Science Center and Southwest Cancer Treatment and Research Center, 3601 4th St., 79430 Lubbock, Texas, USA
| | - Eldo E Frezza
- Department of Microbiology & Immunology, Texas Tech University Health Science Center and Southwest Cancer Treatment and Research Center, 3601 4th St., 79430 Lubbock, Texas, USA
- Department of Surgery, Texas Tech University Health Science Center and Southwest Cancer Treatment and Research Center, 3601 4th St., 79430 Lubbock, Texas, USA
| | - Everardo Cobos
- Department of Microbiology & Immunology, Texas Tech University Health Science Center and Southwest Cancer Treatment and Research Center, 3601 4th St., 79430 Lubbock, Texas, USA
- Department of Hematology & Oncology, Texas Tech University Health Science Center and Southwest Cancer Treatment and Research Center, 3601 4th St., 79430 Lubbock, Texas, USA
| | - Maurizio Chiriva-Internati
- Department of Microbiology & Immunology, Texas Tech University Health Science Center and Southwest Cancer Treatment and Research Center, 3601 4th St., 79430 Lubbock, Texas, USA
- Department of Hematology & Oncology, Texas Tech University Health Science Center and Southwest Cancer Treatment and Research Center, 3601 4th St., 79430 Lubbock, Texas, USA
| |
Collapse
|