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Yang T, Liu T, Lei T, Li T, Liu N, Zhang M. Unveiling the potential of SLURP1 protein as a biomarker for prostate cancer screening. Front Oncol 2024; 14:1365615. [PMID: 38686195 PMCID: PMC11057230 DOI: 10.3389/fonc.2024.1365615] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 03/28/2024] [Indexed: 05/02/2024] Open
Abstract
Background Prostate cancer (PCa) develops slowly and lacks obvious symptoms in the early stage, which makes early screening and diagnosis difficult. Urine collection is simple and is an ideal source of biomarkers. In this study, we performed urinary proteomic studies in PCa patients to screen proteins and apply them to the non-invasive early diagnosis of PCa. Method Urine samples from PCa patients, benign prostatic hyperplasia (BPH) patients and normal control group were collected. Mass spectrometry was used for proteomic analysis and screening target proteins. Western blot and enzyme-linked immunosorbent assay (ELISA) were used to verify the results. Correlations with clinical indicators were explored, and receiver operating characteristic (ROC) curves were drawn to evaluate the value of target proteins in PCa. Result A total of 1065 proteins were identified. Urinary SLURP1 protein was significantly elevated in patients with PCa compared with normal controls and patients with BPH patients. Western blot and ELISA further verified the expression changes of SLURP1. The immunohistochemical staining results revealed a substantial increase in positive SLURP1 expression within PCa tumor tissue. Correlation analysis showed a positive correlation between the expression level of urine SLURP1 protein and serum PSA. ROC curve analysis of the SLURP1 protein in the urine of both normal individuals and PCa patients is determined to be 0.853 (95% CI=0.754 to 0.954). Conclusion The concentration of SLURP1 protein in urine of PCa patients is increased, which can serve as a biomarker for screening PCa.
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Affiliation(s)
- Tianyin Yang
- Clinical Laboratory Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Urinary Cellular Molecular Diagnostics, Beijing, China
| | - Tianci Liu
- Clinical Laboratory Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Urinary Cellular Molecular Diagnostics, Beijing, China
| | - Ting Lei
- Clinical Laboratory Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Urinary Cellular Molecular Diagnostics, Beijing, China
| | - Tao Li
- Clinical Laboratory Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Urinary Cellular Molecular Diagnostics, Beijing, China
| | - Na Liu
- Clinical Laboratory Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Urinary Cellular Molecular Diagnostics, Beijing, China
| | - Man Zhang
- Clinical Laboratory Medicine, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
- Beijing Key Laboratory of Urinary Cellular Molecular Diagnostics, Beijing, China
- Institute of Regenerative Medicine and Laboratory Technology Innovation, Qingdao University, Qingdao, China
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Kost V, Sukhov D, Ivanov I, Kasheverov I, Ojomoko L, Shelukhina I, Mozhaeva V, Kudryavtsev D, Feofanov A, Ignatova A, Utkin Y, Tsetlin V. Comparison of Conformations and Interactions with Nicotinic Acetylcholine Receptors for E. coli-Produced and Synthetic Three-Finger Protein SLURP-1. Int J Mol Sci 2023; 24:16950. [PMID: 38069271 PMCID: PMC10707033 DOI: 10.3390/ijms242316950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/10/2023] [Accepted: 11/13/2023] [Indexed: 12/18/2023] Open
Abstract
SLURP-1 is a three-finger human protein targeting nicotinic acetylcholine receptors (nAChRs). The recombinant forms of SLURP-1 produced in E. coli differ in added fusion fragments and in activity. The closest in sequence to the naturally occurring SLURP-1 is the recombinant rSLURP-1, differing by only one additional N-terminal Met residue. sSLURP-1 can be prepared by peptide synthesis and its amino acid sequence is identical to that of the natural protein. In view of recent NMR analysis of the conformational mobility of rSLURP-1 and cryo-electron microscopy structures of complexes of α-bungarotoxin (a three-finger snake venom protein) with Torpedo californica and α7 nAChRs, we compared conformations of sSLURP-1 and rSLURP-1 by Raman spectroscopy and CD-controlled thermal denaturation, analyzed their competition with α-bungarotoxin for binding to the above-mentioned nAChRs, compared the respective receptor complexes with computer modeling and compared their inhibitory potency on the α9α10 nAChR. The CD revealed a higher thermostability of sSLURP-1; some differences between sSLURP-1 and rSLURP-1 were observed in the regions of disulfides and tyrosine residues by Raman spectroscopy, but in binding, computer modeling and electrophysiology, the proteins were similar. Thus, sSLURP-1 and rSLURP-1 with only one additional Met residue appear close in structure and functional characteristics, being appropriate for research on nAChRs.
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Affiliation(s)
- Vladimir Kost
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.K.); (D.S.); (I.I.); (I.K.); (L.O.); (I.S.); (V.M.); (D.K.); (A.F.); (Y.U.)
| | - Dmitry Sukhov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.K.); (D.S.); (I.I.); (I.K.); (L.O.); (I.S.); (V.M.); (D.K.); (A.F.); (Y.U.)
| | - Igor Ivanov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.K.); (D.S.); (I.I.); (I.K.); (L.O.); (I.S.); (V.M.); (D.K.); (A.F.); (Y.U.)
| | - Igor Kasheverov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.K.); (D.S.); (I.I.); (I.K.); (L.O.); (I.S.); (V.M.); (D.K.); (A.F.); (Y.U.)
| | - Lucy Ojomoko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.K.); (D.S.); (I.I.); (I.K.); (L.O.); (I.S.); (V.M.); (D.K.); (A.F.); (Y.U.)
| | - Irina Shelukhina
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.K.); (D.S.); (I.I.); (I.K.); (L.O.); (I.S.); (V.M.); (D.K.); (A.F.); (Y.U.)
| | - Vera Mozhaeva
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.K.); (D.S.); (I.I.); (I.K.); (L.O.); (I.S.); (V.M.); (D.K.); (A.F.); (Y.U.)
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia
| | - Denis Kudryavtsev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.K.); (D.S.); (I.I.); (I.K.); (L.O.); (I.S.); (V.M.); (D.K.); (A.F.); (Y.U.)
- Department of Biology and General Genetics, I.M. Sechenov First Moscow State Medical University, 8, bldg. 2 Trubetskaya Str., 119048 Moscow, Russia
| | - Alexey Feofanov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.K.); (D.S.); (I.I.); (I.K.); (L.O.); (I.S.); (V.M.); (D.K.); (A.F.); (Y.U.)
| | - Anastasia Ignatova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.K.); (D.S.); (I.I.); (I.K.); (L.O.); (I.S.); (V.M.); (D.K.); (A.F.); (Y.U.)
| | - Yuri Utkin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.K.); (D.S.); (I.I.); (I.K.); (L.O.); (I.S.); (V.M.); (D.K.); (A.F.); (Y.U.)
| | - Victor Tsetlin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997 Moscow, Russia; (V.K.); (D.S.); (I.I.); (I.K.); (L.O.); (I.S.); (V.M.); (D.K.); (A.F.); (Y.U.)
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Shlepova OV, Shulepko MA, Shipunova VO, Bychkov ML, Kukushkin ID, Chulina IA, Azev VN, Shramova EI, Kazakov VA, Ismailova AM, Palikova YA, Palikov VA, Kalabina EA, Shaykhutdinova EA, Slashcheva GA, Tukhovskaya EA, Dyachenko IA, Murashev AN, Deyev SM, Kirpichnikov MP, Shenkarev ZO, Lyukmanova EN. Selective targeting of α7 nicotinic acetylcholine receptor by synthetic peptide mimicking loop I of human SLURP-1 provides efficient and prolonged therapy of epidermoid carcinoma in vivo. Front Cell Dev Biol 2023; 11:1256716. [PMID: 37854069 PMCID: PMC10580074 DOI: 10.3389/fcell.2023.1256716] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 09/19/2023] [Indexed: 10/20/2023] Open
Abstract
α7-Type nicotinic acetylcholine receptor (α7-nAChR) promotes the growth and metastasis of solid tumors. Secreted Ly6/uPAR-Related Protein 1 (SLURP-1) is a specific negative modulator of α7-nAChR produced by epithelial cells. Here, we investigated mechanisms of antiproliferative activity of recombinant SLURP-1 in epidermoid carcinoma A431 cells and activity of SLURP-1 and synthetic 21 a.a. peptide mimicking its loop I (Oncotag) in a xenograft mice model of epidermoid carcinoma. SLURP-1 inhibited the mitogenic pathways and transcription factors in A431 cells, and its antiproliferative activity depended on α7-nAChR. Intravenous treatment of mice with SLURP-1 or Oncotag for 10 days suppressed the tumor growth and metastasis and induced sustained changes in gene and microRNA expression in the tumors. Both SLURP-1 and Oncotag demonstrated no acute toxicity. Surprisingly, Oncotag led to a longer suppression of pro-oncogenic signaling and downregulated expression of pro-oncogenic miR-221 and upregulated expression of KLF4 protein responsible for control of cell differentiation. Affinity purification revealed SLURP-1 interactions with both α7-nAChR and EGFR and selective Oncotag interaction with α7-nAChR. Thus, the selective inhibition of α7-nAChRs by drugs based on Oncotag may be a promising strategy for cancer therapy.
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Affiliation(s)
- O. V. Shlepova
- NTI Center, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
- Moscow Institute of Physics and Technology, National Research University, Dolgoprudny, Russia
| | - M. A. Shulepko
- Faculty of Biology, Shenzhen MSU-BIT University, Shenzhen, China
| | - V. O. Shipunova
- Moscow Institute of Physics and Technology, National Research University, Dolgoprudny, Russia
- Immunology Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - M. L. Bychkov
- NTI Center, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - I. D. Kukushkin
- Moscow Institute of Physics and Technology, National Research University, Dolgoprudny, Russia
- Bioengineering Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - I. A. Chulina
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Pushchino, Russia
| | - V. N. Azev
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Pushchino, Russia
| | - E. I. Shramova
- Immunology Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - V. A. Kazakov
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Pushchino, Russia
| | - A. M. Ismailova
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Pushchino, Russia
| | - Y. A. Palikova
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Pushchino, Russia
| | - V. A. Palikov
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Pushchino, Russia
| | - E. A. Kalabina
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Pushchino, Russia
| | - E. A. Shaykhutdinova
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Pushchino, Russia
| | - G. A. Slashcheva
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Pushchino, Russia
| | - E. A. Tukhovskaya
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Pushchino, Russia
| | - I. A. Dyachenko
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Pushchino, Russia
| | - A. N. Murashev
- Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Pushchino, Russia
| | - S. M. Deyev
- Immunology Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
- Biomarker Research Laboratory, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - M. P. Kirpichnikov
- Bioengineering Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
- Interdisciplinary Scientific and Educational School of Moscow University Molecular Technologies of the Living Systems and Synthetic Biology, Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory, Moscow, Russia
| | - Z. O. Shenkarev
- NTI Center, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
- Moscow Institute of Physics and Technology, National Research University, Dolgoprudny, Russia
- Structural Biology Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - E. N. Lyukmanova
- Faculty of Biology, Shenzhen MSU-BIT University, Shenzhen, China
- Bioengineering Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
- Interdisciplinary Scientific and Educational School of Moscow University Molecular Technologies of the Living Systems and Synthetic Biology, Faculty of Biology, Lomonosov Moscow State University, Leninskie Gory, Moscow, Russia
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4
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Wang T, Tang Z, Xiao T, Ren J, He S, Liu Y, Xiao S, Wang X. Identification of a novel compound heterozygous mutation and a homozygous mutation of SLURP1 in Chinese families with Mal de Meleda. BMC Med Genomics 2023; 16:152. [PMID: 37393290 PMCID: PMC10314434 DOI: 10.1186/s12920-023-01580-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 06/13/2023] [Indexed: 07/03/2023] Open
Abstract
BACKGROUND Mal de Meleda is an autosomal recessive palmoplantar keratoderma, with SLURP1 identified as the pathogenic gene responsible. Although over 20 mutations in SLURP1 have been reported, only the mutation c.256G > A (p.G87R) has been detected in Chinese patients. Here, we report a novel heterozygous SLURP1 mutation in a Chinese family. METHODS We assessed the clinical manifestations of two Chinese patients with Mal de Meleda and collected specimens from the patients and other family members for whole-exome and Sanger sequencing. We used algorithms (MutationTaster, SIFT, PolyPhen-2, PROVEAN, PANTHER, FATHMM, mCSM, SDM and DUET) to predict the pathogenetic potential of the mutation detected. We also employed AlphaFold2 and PyMOL for protein structure analysis. RESULTS Both patients displayed the typical manifestation of palmoplantar keratoderma. In Proband 1, we detected a novel compound heterozygous mutation (c.243C > A and c.256G > A) in exon 3 of SLURP1. Proband 2 was an adult female born to a consanguineous family and carried a homozygous mutation (c.211C > T). Algorithms indicated both mutations to be probably disease causing. We used AlphaFold2 to predict the protein structure of these mutations and found that they cause instability, as shown by PyMOL. CONCLUSIONS Our study identified a novel compound heterozygous mutation (c.243C > A and c.256G > A) in a Chinese patient with Mal de Meleda that has the potential to cause instability in protein structure. Moreover, this study expands on the existing knowledge of SLURP1 mutations and contributes to knowledge of Mal de Meleda.
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Affiliation(s)
- Tian Wang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, China
| | - Zhuangli Tang
- Department of Dermatology, The Second Affiliated Hospital of Zhejiang University, Hangzhou, China
| | - Tong Xiao
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, China
| | - Junru Ren
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, China
| | - Shuyao He
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, China
| | - Yan Liu
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, China
| | - Shengxiang Xiao
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, China.
| | - Xiaopeng Wang
- Department of Dermatology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 Xiwu Road, Xi'an, 710004, China.
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Rathbun LA, Magliocco AM, Bamezai AK. Human LY6 gene family: potential tumor-associated antigens and biomarkers of prognosis in uterine corpus endometrial carcinoma. Oncotarget 2023; 14:426-437. [PMID: 37141412 PMCID: PMC10159366 DOI: 10.18632/oncotarget.28409] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023] Open
Abstract
The human Lymphocyte antigen-6 (LY6) gene family has recently gained interest for its possible role in tumor progression. We have carried out in silico analyses of all known LY6 gene expression and amplification in different cancers using TNMplot and cBioportal. We also have analyzed patient survival by Kaplan-Meier plotter after mining the TCGA database. We report that upregulated expression of many LY6 genes is associated with poor survival in uterine corpus endometrial carcinoma (UCEC) cancer patients. Importantly, the expression of several LY6 genes is elevated in UCEC when compared to the expression in normal uterine tissue. For example, LY6K expression is 8.25× higher in UCEC compared to normal uterine tissue, and this high expression is associated with poor survival with a hazard ratio of 2.42 (p-value = 0.0032). Therefore, some LY6 gene products may serve as tumor-associated antigens in UCEC, biomarkers for UCEC detection, and possibly targets for directing UCEC patient therapy. Further analysis of tumor-specific expression of LY6 gene family members and LY6-triggered signaling pathways is needed to uncover the function of LY6 proteins and their ability to endow tumor survival and poor prognosis in UCEC patients.
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Affiliation(s)
- Luke A Rathbun
- Department of Biology, Villanova University, Villanova, PA 19085, USA
| | | | - Anil K Bamezai
- Department of Biology, Villanova University, Villanova, PA 19085, USA
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Bychkov ML, Shulepko MA, Shlepova OV, Kulbatskii DS, Chulina IA, Paramonov AS, Baidakova LK, Azev VN, Koshelev SG, Kirpichnikov MP, Shenkarev ZO, Lyukmanova EN. SLURP-1 Controls Growth and Migration of Lung Adenocarcinoma Cells, Forming a Complex With α7-nAChR and PDGFR/EGFR Heterodimer. Front Cell Dev Biol 2021; 9:739391. [PMID: 34595181 PMCID: PMC8476798 DOI: 10.3389/fcell.2021.739391] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Accepted: 08/17/2021] [Indexed: 12/18/2022] Open
Abstract
Secreted Ly6/uPAR-related protein 1 (SLURP-1) is a secreted Ly6/uPAR protein that negatively modulates the nicotinic acetylcholine receptor of α7 type (α7-nAChR), participating in control of cancer cell growth. Previously we showed, that a recombinant analogue of human SLURP-1 (rSLURP-1) diminishes the lung adenocarcinoma A549 cell proliferation and abolishes the nicotine-induced growth stimulation. Here, using multiplex immunoassay, we demonstrated a decrease in PTEN and mammalian target of rapamycin (mTOR) kinase phosphorylation in A549 cells upon the rSLURP-1 treatment pointing on down-regulation of the PI3K/AKT/mTOR signaling pathway. Decreased phosphorylation of the platelet-derived growth factor receptor type β (PDGFRβ) and arrest of the A549 cell cycle in the S and G2/M phases without apoptosis induction was also observed. Using a scratch migration assay, inhibition of A549 cell migration under the rSLURP-1 treatment was found. Affinity extraction demonstrated that rSLURP-1 in A549 cells forms a complex not only with α7-nAChR, but also with PDGFRα and epidermal growth factor receptor (EGFR), which are known to be involved in regulation of cancer cell growth and migration and are able to form a heterodimer. Knock-down of the genes encoding α7-nAChR, PDGFRα, and EGFR confirmed the involvement of these receptors in the anti-migration effect of SLURP-1. Thus, SLURP-1 can target the α7-nAChR complexes with PDGFRα and EGFR in the membrane of epithelial cells. Using chimeric proteins with grafted SLURP-1 loops we demonstrated that loop I is the principal active site responsible for the SLURP-1 interaction with α7-nAChR and its antiproliferative effect. Synthetic peptide mimicking the loop I cyclized by a disulfide bond inhibited ACh-evoked current at α7-nAChR, as well as A549 cell proliferation and migration. This synthetic peptide represents a promising prototype of new antitumor drug with the properties close to that of the native SLURP-1 protein.
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Affiliation(s)
- Maxim L. Bychkov
- Bioengineering Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Moscow, Russia
| | - Mikhail A. Shulepko
- Bioengineering Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Moscow, Russia
| | - Olga V. Shlepova
- Bioengineering Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Moscow, Russia
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
| | - Dmitrii S. Kulbatskii
- Bioengineering Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Moscow, Russia
| | - Irina A. Chulina
- Group of Peptide Chemistry, Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Pushchino, Russia
| | - Alexander S. Paramonov
- Department of Structural Biology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Moscow, Russia
| | - Ludmila K. Baidakova
- Group of Peptide Chemistry, Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Pushchino, Russia
| | - Viatcheslav N. Azev
- Group of Peptide Chemistry, Branch of Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Pushchino, Russia
| | - Sergey G. Koshelev
- Department of Molecular Neurobiology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Moscow, Russia
| | - Mikhail P. Kirpichnikov
- Bioengineering Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Moscow, Russia
- Biological Faculty, Lomonosov Moscow State University, Moscow, Russia
| | - Zakhar O. Shenkarev
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
- Department of Structural Biology, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Moscow, Russia
| | - Ekaterina N. Lyukmanova
- Bioengineering Department, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Moscow, Russia
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Dolgoprudny, Russia
- Biological Faculty, Lomonosov Moscow State University, Moscow, Russia
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7
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Biochemical Basis of Skin Disease Mal de Meleda: SLURP-1 Mutants Differently Affect Keratinocyte Proliferation and Apoptosis. J Invest Dermatol 2021; 141:2229-2237. [PMID: 33741389 DOI: 10.1016/j.jid.2021.01.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 01/20/2021] [Accepted: 01/29/2021] [Indexed: 11/23/2022]
Abstract
Mal de Meleda is an autosomal recessive palmoplantar keratoderma associated with mutations in a gene encoding SLURP-1. SLURP-1 controls growth, differentiation, and apoptosis of keratinocytes by interaction with α7-type nicotinic acetylcholine receptors. SLURP-1 has a three-finger structure with a β-structural core (head) and three prolonged loops (fingers). To determine the role of SLURP-1 mutations, we produced 22 mutant variants of the protein, including those involved in Mal de Meleda pathogenesis. All mutants except R71H, R71P, T52A, R96P, and L98P were produced in the folded form. SLURP-1 reduces the growth of Het-1A keratinocytes; thus, we studied the influence of the mutations on its antiproliferative activity. Mutations in loops I and III led to the protein inactivation, whereas most mutations in loop II increased SLURP-1 antiproliferative activity. Alanine substitutions of R96 and L98 residues located in the protein head resulted in the appearance of additional pro-apoptotic activity. Our results agree with the diversity of Mal de Meleda phenotypes. Using obtained functional data, the SLURP-1/α7 type nicotinic acetylcholine receptor complex was modeled in silico. Our study provides functional and structural information about the role of the SLURP-1 mutations in Mal de Meleda pathogenesis and predicts SLURP-1 variants, which could drive the disease.
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Jee SH, Weng HJ, Liao YH, Lin PJ, Chen JS, Cheng YP, Lee WR. Squamous cell carcinoma in a Taiwanese mal de Meleda family with SLURP-1 mutation: A case report. DERMATOL SIN 2021. [DOI: 10.4103/ds.ds_43_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Tod BM, Schneider JW, Bowcock AM, Visser WI, Kotze MJ. The tumor genetics of acral melanoma: What should a dermatologist know? JAAD Int 2020; 1:135-147. [PMID: 34355205 PMCID: PMC8329760 DOI: 10.1016/j.jdin.2020.07.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/08/2020] [Indexed: 02/06/2023] Open
Abstract
Dermatologists stand at the gateway of individualization of classification, treatment, and outcomes of acral melanoma patients. The acral melanoma genetic landscape differs in vital ways from that of other cutaneous melanomas. These differences have important implications in understanding pathogenesis, treatment, and prognosis. The selection of molecularly targeted therapy must be adapted for acral melanoma. It is also critical to recognize that tumor development is far more complex than an isolated event, reliably treated by a medication acting on a single target. Tumors exhibit intratumor genetic heterogeneity, metastasis may have different genetic or epigenetic features than primary tumors, and tumor resistance may develop because of the activation of alternative genetic pathways. Microenvironmental, immune, and epigenetic events contribute and sustain tumors in complex ways. Treatment strategies with multiple targets are required to effectively disrupt the tumor ecosystem. This review attempts to translate the current molecular understanding of acral melanoma into digestible concepts relevant to the practice of dermatology. The focus is tumor genetics defining potentially treatable cancer pathways, contextualized within the relevant pathologic and molecular features.
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Affiliation(s)
- Bianca M. Tod
- Division of Dermatology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Academic Hospital, Cape Town, South Africa
| | - Johann W. Schneider
- Division of Anatomical Pathology, Department of Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University and National Health Laboratory Service, Tygerberg Academic Hospital, Cape Town, South Africa
| | - Anne M. Bowcock
- Departments of Dermatology, Oncological Sciences and Genetics and Genome Science, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Willem I. Visser
- Division of Dermatology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University and Tygerberg Academic Hospital, Cape Town, South Africa
| | - Maritha J. Kotze
- Division of Chemical Pathology, Department of Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University and National Health Laboratory Service, Tygerberg Academic Hospital, Cape Town, South Africa
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10
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Long J, Zhang S, Zeng X, Ouyang Y, Wang Y, Hu Z, Ye Y, Wu W, Jin F, Zhou S, Zeng Z. Development of an Immunogenomic Landscape-Based Prognostic Index of Head and Neck Squamous Cell Carcinoma. Front Mol Biosci 2020; 7:586344. [PMID: 33330624 PMCID: PMC7732611 DOI: 10.3389/fmolb.2020.586344] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 10/13/2020] [Indexed: 12/11/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is the eighth leading cancer by incidence worldwide, with approximately 700,000 new cases in 2018 (accounting for 11% of all cancers). The occurrence and development of tumors are closely related to the immunological function of the body and sensitivity to treatment schemes as well as prognosis. It is urgent for clinicians to systematically study patients’ immune gene maps to help select a treatment plan and analyze the potential to cure HNSCC. Here, the transcriptomic data of HNSCC samples were downloaded from The Cancer Genome Atlas (TCGA), and 4,793 genes differentially expressed in normal and cancer tissues of HNSCC were identified, including 1,182 downregulated and 3,611 upregulated genes. From these genes, 400 differentially expressed immune-related genes (IRGs) were extracted, including 95 downregulated genes and 305 upregulated genes. The prognostic values of IRGs were evaluated by univariate Cox analysis, and 236 genes that were significantly related to the overall survival (OS) of patients were identified. The signaling pathways that play roles in the prognosis of IRGs were investigated by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses, and the expression profiles of IRGs and OS in 499 HNSCC patients based on TCGA dataset were integrated. Potential molecular mechanisms and characteristics of these HNSCC-specific IRGs were further explored with the help of a new prognostic index based on IRGs developed by least absolute shrinkage and selection operator (LASSO) Cox analysis. A total of 64 hub genes (IRGs associated with prognosis) were markedly associated with the clinical outcome of HNSCC patients. KEGG functional enrichment analysis revealed that these genes were actively involved in several pathways, e.g., cytokine–cytokine receptor interaction, T-cell receptor signaling, and natural killer cell-mediated cytotoxicity. IRG-based prognostic signatures performed moderately in prognostic predictions. Interestingly, the prognostic index based on IRGs reflected infiltration by several types of immune cells. These data screened several IRGs of clinical significance and revealed drivers of the immune repertoire, demonstrating the importance of a personalized IRG-based immune signature in the recognition, surveillance, and prognosis of HNSCC.
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Affiliation(s)
- Jinhua Long
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China.,School of Biology and Engineering, Guizhou Medical University, Guiyang, China.,Key Laboratory of Infectious Immune and Antibody Engineering in Guizhou Province, Guizhou Medical University, Guiyang, China.,Department of Head and Neck Oncology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Shichao Zhang
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China.,School of Biology and Engineering, Guizhou Medical University, Guiyang, China.,Key Laboratory of Infectious Immune and Antibody Engineering in Guizhou Province, Guizhou Medical University, Guiyang, China.,Key Laboratory of Biology and Medical Engineering, Immune Cells and Antibody Engineering Research Center of Guizhou Province, School of Biology and Engineering, Guizhou Medical University, Guiyang, China
| | - Xianlin Zeng
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China.,School of Biology and Engineering, Guizhou Medical University, Guiyang, China.,Key Laboratory of Infectious Immune and Antibody Engineering in Guizhou Province, Guizhou Medical University, Guiyang, China.,Key Laboratory of Biology and Medical Engineering, Immune Cells and Antibody Engineering Research Center of Guizhou Province, School of Biology and Engineering, Guizhou Medical University, Guiyang, China
| | - Yan Ouyang
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China.,School of Biology and Engineering, Guizhou Medical University, Guiyang, China
| | - Yun Wang
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China.,School of Biology and Engineering, Guizhou Medical University, Guiyang, China.,Key Laboratory of Infectious Immune and Antibody Engineering in Guizhou Province, Guizhou Medical University, Guiyang, China.,Key Laboratory of Biology and Medical Engineering, Immune Cells and Antibody Engineering Research Center of Guizhou Province, School of Biology and Engineering, Guizhou Medical University, Guiyang, China
| | - Zuquan Hu
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China.,School of Biology and Engineering, Guizhou Medical University, Guiyang, China.,Key Laboratory of Infectious Immune and Antibody Engineering in Guizhou Province, Guizhou Medical University, Guiyang, China.,Key Laboratory of Biology and Medical Engineering, Immune Cells and Antibody Engineering Research Center of Guizhou Province, School of Biology and Engineering, Guizhou Medical University, Guiyang, China
| | - Yuannong Ye
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China.,School of Biology and Engineering, Guizhou Medical University, Guiyang, China.,Key Laboratory of Infectious Immune and Antibody Engineering in Guizhou Province, Guizhou Medical University, Guiyang, China
| | - Weili Wu
- Department of Head and Neck Oncology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Feng Jin
- Department of Head and Neck Oncology, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Shi Zhou
- Department of Intervention, The Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Zhu Zeng
- School of Basic Medical Sciences, Guizhou Medical University, Guiyang, China.,School of Biology and Engineering, Guizhou Medical University, Guiyang, China.,Key Laboratory of Infectious Immune and Antibody Engineering in Guizhou Province, Guizhou Medical University, Guiyang, China.,Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Guizhou Medical University, Guiyang, China
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11
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Paramonov AS, Kocharovskaya MV, Tsarev AV, Kulbatskii DS, Loktyushov EV, Shulepko MA, Kirpichnikov MP, Lyukmanova EN, Shenkarev ZO. Structural Diversity and Dynamics of Human Three-Finger Proteins Acting on Nicotinic Acetylcholine Receptors. Int J Mol Sci 2020; 21:E7280. [PMID: 33019770 PMCID: PMC7582953 DOI: 10.3390/ijms21197280] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/26/2020] [Accepted: 09/28/2020] [Indexed: 12/12/2022] Open
Abstract
Ly-6/uPAR or three-finger proteins (TFPs) contain a disulfide-stabilized β-structural core and three protruding loops (fingers). In mammals, TFPs have been found in epithelium and the nervous, endocrine, reproductive, and immune systems. Here, using heteronuclear NMR, we determined the three-dimensional (3D) structure and backbone dynamics of the epithelial secreted protein SLURP-1 and soluble domains of GPI-anchored TFPs from the brain (Lynx2, Lypd6, Lypd6b) acting on nicotinic acetylcholine receptors (nAChRs). Results were compared with the data about human TFPs Lynx1 and SLURP-2 and snake α-neurotoxins WTX and NTII. Two different topologies of the β-structure were revealed: one large antiparallel β-sheet in Lypd6 and Lypd6b, and two β-sheets in other proteins. α-Helical segments were found in the loops I/III of Lynx2, Lypd6, and Lypd6b. Differences in the surface distribution of charged and hydrophobic groups indicated significant differences in a mode of TFPs/nAChR interactions. TFPs showed significant conformational plasticity: the loops were highly mobile at picosecond-nanosecond timescale, while the β-structural regions demonstrated microsecond-millisecond motions. SLURP-1 had the largest plasticity and characterized by the unordered loops II/III and cis-trans isomerization of the Tyr39-Pro40 bond. In conclusion, plasticity could be an important feature of TFPs adapting their structures for optimal interaction with the different conformational states of nAChRs.
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MESH Headings
- Adaptor Proteins, Signal Transducing/chemistry
- Adaptor Proteins, Signal Transducing/genetics
- Adaptor Proteins, Signal Transducing/metabolism
- Amino Acid Sequence
- Antigens, Ly/chemistry
- Antigens, Ly/genetics
- Antigens, Ly/metabolism
- Binding Sites
- Cloning, Molecular
- Elapid Venoms/chemistry
- Elapid Venoms/metabolism
- Escherichia coli/genetics
- Escherichia coli/metabolism
- GPI-Linked Proteins/chemistry
- GPI-Linked Proteins/genetics
- GPI-Linked Proteins/metabolism
- Gene Expression
- Genetic Vectors/chemistry
- Genetic Vectors/metabolism
- Humans
- Hydrophobic and Hydrophilic Interactions
- Models, Molecular
- Neuropeptides/chemistry
- Neuropeptides/genetics
- Neuropeptides/metabolism
- Nuclear Magnetic Resonance, Biomolecular
- Protein Binding
- Protein Conformation, alpha-Helical
- Protein Conformation, beta-Strand
- Protein Interaction Domains and Motifs
- Protein Isoforms/chemistry
- Protein Isoforms/genetics
- Protein Isoforms/metabolism
- Receptors, Nicotinic/chemistry
- Receptors, Nicotinic/genetics
- Receptors, Nicotinic/metabolism
- Recombinant Proteins/chemistry
- Recombinant Proteins/genetics
- Recombinant Proteins/metabolism
- Sequence Alignment
- Sequence Homology, Amino Acid
- Urokinase-Type Plasminogen Activator/chemistry
- Urokinase-Type Plasminogen Activator/genetics
- Urokinase-Type Plasminogen Activator/metabolism
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Affiliation(s)
- Alexander S. Paramonov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 119997 Moscow, Russia; (A.S.P.); (M.V.K.); (A.V.T.); (D.S.K.); (E.V.L.); (M.A.S.); (M.P.K.)
| | - Milita V. Kocharovskaya
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 119997 Moscow, Russia; (A.S.P.); (M.V.K.); (A.V.T.); (D.S.K.); (E.V.L.); (M.A.S.); (M.P.K.)
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology (National Research University), 141701 Dolgoprudny, Moscow Region, Russia
| | - Andrey V. Tsarev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 119997 Moscow, Russia; (A.S.P.); (M.V.K.); (A.V.T.); (D.S.K.); (E.V.L.); (M.A.S.); (M.P.K.)
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology (National Research University), 141701 Dolgoprudny, Moscow Region, Russia
| | - Dmitrii S. Kulbatskii
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 119997 Moscow, Russia; (A.S.P.); (M.V.K.); (A.V.T.); (D.S.K.); (E.V.L.); (M.A.S.); (M.P.K.)
| | - Eugene V. Loktyushov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 119997 Moscow, Russia; (A.S.P.); (M.V.K.); (A.V.T.); (D.S.K.); (E.V.L.); (M.A.S.); (M.P.K.)
| | - Mikhail A. Shulepko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 119997 Moscow, Russia; (A.S.P.); (M.V.K.); (A.V.T.); (D.S.K.); (E.V.L.); (M.A.S.); (M.P.K.)
| | - Mikhail P. Kirpichnikov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 119997 Moscow, Russia; (A.S.P.); (M.V.K.); (A.V.T.); (D.S.K.); (E.V.L.); (M.A.S.); (M.P.K.)
- Faculty of Biology, Lomonosov Moscow State University, 119234 Moscow, Russia
| | - Ekaterina N. Lyukmanova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 119997 Moscow, Russia; (A.S.P.); (M.V.K.); (A.V.T.); (D.S.K.); (E.V.L.); (M.A.S.); (M.P.K.)
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology (National Research University), 141701 Dolgoprudny, Moscow Region, Russia
| | - Zakhar O. Shenkarev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, 119997 Moscow, Russia; (A.S.P.); (M.V.K.); (A.V.T.); (D.S.K.); (E.V.L.); (M.A.S.); (M.P.K.)
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology (National Research University), 141701 Dolgoprudny, Moscow Region, Russia
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12
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Shulepko MA, Bychkov ML, Lyukmanova EN, Kirpichnikov MP. Recombinant Analogue of the Human Protein SLURP-1 Inhibits the Growth of U251 MG and A172 Glioma Cells. DOKL BIOCHEM BIOPHYS 2020; 493:211-214. [PMID: 32894468 DOI: 10.1134/s1607672920040134] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 04/16/2020] [Accepted: 04/16/2020] [Indexed: 12/11/2022]
Abstract
The alpha7 nicotinic acetylcholine receptor (α7-nAChR) is considered a promising pharmacological target for the carcinoma therapy. We have previously shown that the recombinant analogue of the human protein SLURP-1 (rSLURP-1) effectively inhibits the growth of carcinomas of various origins via the interaction with α7-nAChR and down-regulation of expression of this receptor. Expression of α7-nAChR is increased in gliomas compared to healthy human brain tissues; however, the role of this receptor in the gliomas development is poorly understood. It was shown for the first time that rSLURP-1 significantly inhibits the growth of glioma model cells U251 MG and A172 up to ∼70%, which is comparable with the effect of α-bungarotoxin, a selective α7-nAChR inhibitor. The half-maximum effective concentrations of rSLURP-1 for U251 MG and A172 cells were 2.82 ± 0.2 and 8.9 ± 0.3 nM, respectively. Coincubation of U251 MG cells with rSLURP-1 and the nAChR inhibitor mecamylamine attenuates the antiproliferative activity of rSLURP-1, indicating nAChR as a molecular target for the rSLURP-1 action in gliomas.
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Affiliation(s)
- M A Shulepko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - M L Bychkov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia
| | - E N Lyukmanova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.
| | - M P Kirpichnikov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.,Biological Faculty, Moscow State University, Moscow, Russia
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13
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Tsetlin VI, Kasheverov IE, Utkin YN. Three-finger proteins from snakes and humans acting on nicotinic receptors: Old and new. J Neurochem 2020; 158:1223-1235. [PMID: 32648941 DOI: 10.1111/jnc.15123] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 06/25/2020] [Accepted: 07/06/2020] [Indexed: 12/12/2022]
Abstract
The first toxin to give rise to the three-finger protein (TFP) family was α-bungarotoxin (α-Bgt) from Bungarus multicinctus krait venom. α-Bgt was crucial for research on nicotinic acetylcholine receptors (nAChRs), and in this Review article we focus on present data for snake venom TFPs and those of the Ly6/uPAR family from mammalians (membrane-bound Lynx1 and secreted SLURP-1) interacting with nAChRs. Recently isolated from Bungarus candidus venom, αδ-bungarotoxins differ from α-Bgt: they bind more reversibly and distinguish two binding sites in Torpedo californica nAChR. Naja kaouthia α-cobratoxin, classical blocker of nAChRs, was shown to inhibit certain GABA-A receptor subtypes, whereas α-cobratoxin dimer with 2 intermolecular disulfides has a novel type of 3D structure. Non-conventional toxin WTX has additional 5th disulfide not in the central loop, as α-Bgt, but in the N-terminal loop, like all Ly6/uPAR proteins, and inhibits α7 and Torpedo nAChRs. A water-soluble form of Lynx1, ws-Lynx1, was expressed in E. coli, its 1 H-NMR structure and binding to several nAChRs determined. For SLURP-1, similar information was obtained with its recombinant analogue rSLURP-1. A common feature of ws-Lynx1, rSLURP-1, and WTX is their activity against nAChRs and muscarinic acetylcholine receptors. Synthetic SLURP-1, identical to the natural protein, demonstrated some differences from rSLURP-1 in distinguishing nAChR subtypes. The loop II fragment of the Lynx1 was synthesized having the same µM affinity for the Torpedo nAChR as ws-Lynx1. This review illustrates the productivity of parallel research of nAChR interactions with the two TFP groups.
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Affiliation(s)
- Victor I Tsetlin
- Department of Molecular Neuroimmune Signalling, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation.,PhysBio of MePhi, Moscow, Russian Federation
| | - Igor E Kasheverov
- Department of Molecular Neuroimmune Signalling, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation.,Sechenov First Moscow State Medical University, Institute of Molecular Medicine, Moscow, Russian Federation
| | - Yuri N Utkin
- Department of Molecular Neuroimmune Signalling, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russian Federation
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14
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Bychkov ML, Shulepko MA, Shlepova OV, Lyukmanova EN, Kirpichnikov MP. Recombinant Analogue of the Human Protein SLURP-1 Inhibits the Growth of Multicellular Spheroids Reconstructed from Carcinoma Cells. DOKL BIOCHEM BIOPHYS 2020; 489:392-395. [PMID: 32130608 DOI: 10.1134/s1607672919060103] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Indexed: 01/03/2023]
Abstract
In the present study we showed that the recombinant analogue of the SLURP-1 protein effectively inhibits the growth of a 3D model of tumors-multicellular spheroids reconstructed from human epidermoid carcinoma A431 cells and human lung adenocarcinoma A549 cells. The combined application of rSLURP-1 with gefitinib (inhibitor of epidermal growth factor receptor (EGFR)) leads to the synergistic antiproliferative effect on spheroids from A431 cells. The results obtained suggest the possibility for design of first-in-class anticancer drugs based on recombinant SLURP-1.
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Affiliation(s)
- M L Bychkov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997, Moscow, Russia
| | - M A Shulepko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997, Moscow, Russia.
| | - O V Shlepova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997, Moscow, Russia.,Moscow Institute of Physics and Technology (National Research University), 141701, Dolgoprudnyi, Moscow oblast, Russia
| | - E N Lyukmanova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997, Moscow, Russia. .,Moscow Institute of Physics and Technology (National Research University), 141701, Dolgoprudnyi, Moscow oblast, Russia.
| | - M P Kirpichnikov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Sciences, 117997, Moscow, Russia.,Faculty of Biology, Moscow State University, 119234, Moscow, Russia
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15
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Shulepko MA, Bychkov ML, Shlepova OV, Shenkarev ZO, Kirpichnikov MP, Lyukmanova EN. Human secreted protein SLURP-1 abolishes nicotine-induced proliferation, PTEN down-regulation and α7-nAChR expression up-regulation in lung cancer cells. Int Immunopharmacol 2020; 82:106303. [PMID: 32106059 DOI: 10.1016/j.intimp.2020.106303] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 01/20/2020] [Accepted: 02/10/2020] [Indexed: 12/17/2022]
Abstract
Human Ly-6/uPAR-related protein-1 (SLURP-1) is an allosteric negative modulator of the α7-type nicotinic acetylcholine receptor (α7-nAChR), one of the key receptors promoting nicotine-induced proliferation of lung cancer cells. Incubation of lung adenocarcinoma A549 cells with recombinant SLURP-1 (rSLURP-1) at concentrations >10 nM resulted in the significant decrease of the cell growth (~70%), while treatment of normal lung-derived WI-38 fibroblasts with rSLURP-1 did not influence the cell proliferation up to 1 μM of the protein. rSLURP-1 fully abolished the nicotine-induced increase of the cell proliferation, down-regulation of the expression of PTEN (the negative regulator of the AKT pathway, controlling the growth, survival, and proliferation of cancer cells), and up-regulation of the α7-nAChR expression in the A549 cells. Using the siRNA against α7-nAChR and inhibitors of different cell-surface receptors, we showed that rSLURP-1 antiproliferative effect in A549 cells is connected with α7-nAChR, epidermal growth factor receptors, and β-adrenergic receptors. Moreover, we found that downstream effectors of rSLURP-1 are IP3 receptors and the STAT3 transcription factor. Implication of the IP3 receptors and PTEN in the rSLURP-1 antiproliferative activity points on the AKT-mediated signaling pathway. Co-application of rSLURP-1 with gefitinib and bortezomib (currently used anticancer drugs) resulted in an additive suppression of the A549 cells proliferation up to ~44% and 35%, respectively. Thus, rSLURP-1 could be considered a promising prototype of drugs to prevent nicotine-induced pathologies and cancer treatment.
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Affiliation(s)
- Mikhail A Shulepko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 119997 Moscow, Russian Federation.
| | - Maxim L Bychkov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 119997 Moscow, Russian Federation.
| | - Olga V Shlepova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 119997 Moscow, Russian Federation.
| | - Zakhar O Shenkarev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 119997 Moscow, Russian Federation.
| | - Mikhail P Kirpichnikov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 119997 Moscow, Russian Federation; Faculty of Biology, Lomonosov Moscow State University, 119234 Moscow, Russian Federation.
| | - Ekaterina N Lyukmanova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, 119997 Moscow, Russian Federation.
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16
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[Acral melanoma in a patient with hereditary keratoderma of the palms and soles (mal de Meleda): A chance association?]. Ann Dermatol Venereol 2019; 146:730-736. [PMID: 31582262 DOI: 10.1016/j.annder.2019.08.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Revised: 02/01/2019] [Accepted: 08/05/2019] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Development of acral malignant melanoma in Mal de Meleda is highly unusual. As far as we could ascertain, to date, only 10 previous cases have been published. Herein, we report a new case. OBSERVATION A 64-year-old Algerian man was followed for familial Mal de Meleda. The diagnosis was based on clinical presentation as he had a non-syndromic hereditary foul-smelling and yellowish palmoplantar keratoderma transgrediens. After the failure of acitretin, which had not prevented retractile and mutilating progression of the palmoplantar keratoderma, he had undergone surgery with graft excision of both palms. At the age of 59 years, he presented a tumor on the dorsal aspect of the 1st phalanx of the 3rd finger of the right hand in a non-grafted area. The diagnosis of acral melanoma was confirmed histologically. The radiological findings showed a specific homolateral axillary adenopathy. He underwent digital amputation of the 3rd finger, with lymph node dissection and chemotherapy involving dacarbazine. Follow-up at 5 years showed complete remission of the melanoma. DISCUSSION Mal de Meleda is a hereditary palmoplantar keratoderma due to mutation of the SLURP1 gene. Clinical diagnosis is based on the typical phenotype in adulthood. The occurrence of acral melanoma, which is a rare form of melanoma (1 to 7%), especially in the fingers, together with an unusual palmoplantar keratoderma in a subject of type IV phototype does not appear to be a chance event. This association seems to be the outcome of immune dysregulation rather than of chronic inflammation.
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17
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Taishan Pinus Massoniana pollen polysaccharide inhibits the replication of acute tumorigenic ALV-J and its associated tumor growth. Vet Microbiol 2019; 236:108376. [DOI: 10.1016/j.vetmic.2019.07.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 07/29/2019] [Accepted: 07/29/2019] [Indexed: 01/23/2023]
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18
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Akbar A, Prince C, Payne C, Fasham J, Ahmad W, Baple EL, Crosby AH, Harlalka GV, Gul A. Novel nonsense variants in SLURP1 and DSG1 cause palmoplantar keratoderma in Pakistani families. BMC MEDICAL GENETICS 2019; 20:145. [PMID: 31443639 PMCID: PMC6708247 DOI: 10.1186/s12881-019-0872-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 08/02/2019] [Indexed: 12/31/2022]
Abstract
Background Inherited palmoplantar keratodermas (PPKs) are clinically and genetically heterogeneous and phenotypically diverse group of genodermatoses characterized by hyperkeratosis of the palms and soles. More than 20 genes have been reported to be associated with PPKs including desmoglein 1 (DSG1) a key molecular component for epidermal adhesion and differentiation. Mal de Meleda (MDM) is a rare inherited autosomal recessive genodermatosis characterized by transgrediens PPK, associated with mutations in the secreted LY6/PLAUR domain containing 1 (SLURP1) gene. Methods This study describes clinical as well as genetic whole exome sequencing (WES) and di-deoxy sequencing investigations in two Pakistani families with a total of 12 individuals affected by PPK. Results WES identified a novel homozygous nonsense variant in SLURP1, and a novel heterozygous nonsense variant in DSG1, as likely causes of the conditions in each family. Conclusions This study expands knowledge regarding the molecular basis of PPK, providing important information to aid clinical management in families with PPK from Pakistan. Electronic supplementary material The online version of this article (10.1186/s12881-019-0872-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Abida Akbar
- Department of Biological Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan.,College of Medicine and Health, RILD Wellcome Wolfson Centre, University of Exeter, Royal Devon & Exeter NHS Foundation Trust, Barrack Road, Exeter, EX2 5DW, UK
| | - Claire Prince
- College of Medicine and Health, RILD Wellcome Wolfson Centre, University of Exeter, Royal Devon & Exeter NHS Foundation Trust, Barrack Road, Exeter, EX2 5DW, UK
| | - Chloe Payne
- College of Medicine and Health, RILD Wellcome Wolfson Centre, University of Exeter, Royal Devon & Exeter NHS Foundation Trust, Barrack Road, Exeter, EX2 5DW, UK
| | - James Fasham
- College of Medicine and Health, RILD Wellcome Wolfson Centre, University of Exeter, Royal Devon & Exeter NHS Foundation Trust, Barrack Road, Exeter, EX2 5DW, UK
| | - Wasim Ahmad
- Department of Biochemistry, Faculty of Biological Sciences, Quaid-e-Azam University (QAU), Islamabad, Pakistan
| | - Emma L Baple
- College of Medicine and Health, RILD Wellcome Wolfson Centre, University of Exeter, Royal Devon & Exeter NHS Foundation Trust, Barrack Road, Exeter, EX2 5DW, UK
| | - Andrew H Crosby
- College of Medicine and Health, RILD Wellcome Wolfson Centre, University of Exeter, Royal Devon & Exeter NHS Foundation Trust, Barrack Road, Exeter, EX2 5DW, UK
| | - Gaurav V Harlalka
- College of Medicine and Health, RILD Wellcome Wolfson Centre, University of Exeter, Royal Devon & Exeter NHS Foundation Trust, Barrack Road, Exeter, EX2 5DW, UK.,Rajarshi Shahu College of Pharmacy, Malvihir Buldana, Maharashtra, Post code 443001, India
| | - Asma Gul
- Department of Biological Sciences, International Islamic University, H-10, Islamabad, 44000, Pakistan.
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Upadhyay G. Emerging Role of Lymphocyte Antigen-6 Family of Genes in Cancer and Immune Cells. Front Immunol 2019; 10:819. [PMID: 31068932 PMCID: PMC6491625 DOI: 10.3389/fimmu.2019.00819] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 03/27/2019] [Indexed: 12/14/2022] Open
Abstract
Stem Cell Antigen-1 (Sca-1/Ly6A) was the first identified member of the Lymphocyte antigen-6 (Ly6) gene family. Sca-1 serves as a marker of cancer stem cells and tissue resident stem cells in mice. The Sca-1 gene is located on mouse chromosome 15. While a direct homolog of Sca-1 in humans is missing, human chromosome 8—the syntenic region to mouse chromosome 15—harbors several genes containing the characteristic domain known as LU domain. The function of the LU domain in human LY6 gene family is not yet defined. The LY6 gene family proteins are present on human chromosome 6, 8, 11, and 19. The most interesting of these genes are located on chromosome 8q24.3, a frequently amplified locus in human cancer. Human LY6 genes represent novel biomarkers for poor cancer prognosis and are required for cancer progression in addition to playing an important role in immune escape. Although the mechanism associated with these phenotype is not yet clear, it is timely to review the current literature in order to address the critical need for future advancements in this field. This review will summarize recent findings which describe the role of human LY6 genes—LY6D, LY6E, LY6H, LY6K, PSCA, LYPD2, SLURP1, GML, GPIHBP1, and LYNX1; and their orthologs in mice at chromosome 15.
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Affiliation(s)
- Geeta Upadhyay
- Department of Pathology, John P. Murtha Cancer Center, F. Edward Hebert School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
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Shulepko MA, Kulbatskii DS, Bychkov ML, Lyukmanova EN. Human Nicotinic Acetylcholine Receptors: Part II. Non-Neuronal Cholinergic System. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2019. [DOI: 10.1134/s1068162019020122] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Arousse A, Mokni S, H'mida Ben Brahim D, Bdioui A, Aounallah A, Gammoudi R, Saidi W, Boussofara L, Ghariani N, Denguezli M, Belajouza C, Nouira R. Amelanotic melanoma arising in an area of
SLURP
‐1 mutated Mal de Meleda. Int J Dermatol 2018; 58:966-968. [DOI: 10.1111/ijd.14231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 07/13/2018] [Accepted: 08/22/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Aycha Arousse
- Dermatology Department Farhat Hached University Hospital Sousse Tunisia
| | - Sana Mokni
- Dermatology Department Farhat Hached University Hospital Sousse Tunisia
| | - Dorra H'mida Ben Brahim
- Department of Cytogenetics, Molecular Genetics and Reproductive Biology Farhat Hached University Hospital Sousse Tunisia
| | - Ahlem Bdioui
- Pathology Department Farhat Hached University Hospital Sousse Tunisia
| | - Amina Aounallah
- Dermatology Department Farhat Hached University Hospital Sousse Tunisia
| | - Rima Gammoudi
- Dermatology Department Farhat Hached University Hospital Sousse Tunisia
| | - Wafa Saidi
- Dermatology Department Farhat Hached University Hospital Sousse Tunisia
| | - Lobna Boussofara
- Dermatology Department Farhat Hached University Hospital Sousse Tunisia
| | - Najet Ghariani
- Dermatology Department Farhat Hached University Hospital Sousse Tunisia
| | - Mohamed Denguezli
- Dermatology Department Farhat Hached University Hospital Sousse Tunisia
| | | | - Rafia Nouira
- Dermatology Department Farhat Hached University Hospital Sousse Tunisia
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