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Salvador-Martín S, Rubbini G, Vellosillo P, Zapata-Cobo P, Velasco M, Palomino LM, Clemente S, Segarra O, Moreno-Álvarez A, Fernández-Lorenzo A, Pérez-Moneo B, Montraveta M, Sánchez C, Tolín M, Loverdos I, Fobelo MJ, Navas-López VM, Magallares L, García-Romero R, Torres-Peral R, Rodríguez A, Bossacoma F, Merino-Bohórquez V, Salcedo E, Álvarez R, Dopazo A, Sanjurjo-Sáez M, López-Fernández LA. Blood gene expression biomarkers of response to anti-TNF drugs in pediatric inflammatory bowel diseases before initiation of treatment. Biomed Pharmacother 2024; 173:116299. [PMID: 38401525 DOI: 10.1016/j.biopha.2024.116299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 02/06/2024] [Accepted: 02/17/2024] [Indexed: 02/26/2024] Open
Abstract
BACKGROUND/AIMS Changes in gene expression profiles among individuals with inflammatory bowel diseases (IBDs) could potentially influence the responsiveness to anti-TNF treatment. The aim of this study was to identify genes that could serve as predictors of early response to anti-TNF therapies in pediatric IBD patients prior to the initiation of treatment. METHODS We conducted a prospective, longitudinal, and multicenter study, enrolling 24 pediatric IBD patients aged less than 18 years who were initiating treatment with either infliximab or adalimumab. RNA-seq from blood samples was analyzed using the DESeq2 library by comparing responders and non-responders to anti-TNF drugs. RESULTS Bioinformatic analyses unveiled 102 differentially expressed genes, with 99 genes exhibiting higher expression in responders compared to non-responders prior to the initiation of anti-TNF therapy. Functional enrichment analyses highlighted defense response to Gram-negative bacteria (FDR = 2.3 ×10-7) as the most significant biological processes, and hemoglobin binding (FDR = 0.002), as the most significant molecular function. Gene Set Enrichment Analysis (GSEA) revealed notable enrichment in transcriptional misregulation in cancer (FDR = 0.016). Notably, 13 genes (CEACAM8, CEACAM6, CILP2, COL17A1, OLFM4, INHBA, LCN2, LTF, MMP8, DEFA4, PRTN3, AZU1, and ELANE) were selected for validation, and a consistent trend of increased expression in responders prior to drug administration was observed for most of these genes, with findings for 4 of them being statistically significant (CEACAM8, LCN2, LTF2, and PRTN3). CONCLUSIONS We identified 102 differentially expressed genes involved in the response to anti-TNF drugs in children with IBDs and validated CEACAM8, LCN2, LTF2, and PRTN3. Genes participating in defense response to Gram-negative bacterium, serine-type endopeptidase activity, and transcriptional misregulation in cancer are good candidates for anticipating the response to anti-TNF drugs in children with IBDs.
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Affiliation(s)
- Sara Salvador-Martín
- Instituto de Investigación Sanitaria Gregorio Marañón, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
| | - Gianluca Rubbini
- Instituto de Investigación Sanitaria Gregorio Marañón, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
| | - Perceval Vellosillo
- Instituto de Investigación Sanitaria Gregorio Marañón, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Unidad de Investigación Materno Infantil Fundación Familia Alonso (UDIMIFFA), Spain.
| | - Paula Zapata-Cobo
- Instituto de Investigación Sanitaria Gregorio Marañón, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
| | - Marta Velasco
- Hospital Universitario Infantil Niño Jesús, Madrid, Spain.
| | | | | | | | | | | | | | | | - Cesar Sánchez
- Instituto de Investigación Sanitaria Gregorio Marañón, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
| | - Mar Tolín
- Instituto de Investigación Sanitaria Gregorio Marañón, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
| | | | - María José Fobelo
- Hospital Universitario Virgen de Valme, Universidad de Sevilla, Sevilla, Spain.
| | | | | | | | | | | | - Ferrán Bossacoma
- Servicio de Gastroenterología, Hepatología y Nutrición Pediátrica, Hospital Sant Joan de Dèu, Barcelona, Spain.
| | | | | | - Rebeca Álvarez
- Genomics Unit, Spanish National Center for Cardiovascular Disease (CNIC), Madrid 28029, Spain.
| | - Ana Dopazo
- Genomics Unit, Spanish National Center for Cardiovascular Disease (CNIC), Madrid 28029, Spain.
| | - María Sanjurjo-Sáez
- Instituto de Investigación Sanitaria Gregorio Marañón, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
| | - Luis A López-Fernández
- Instituto de Investigación Sanitaria Gregorio Marañón, Hospital General Universitario Gregorio Marañón, Madrid, Spain.
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Serrán-Aguilera L, Mariotto E, Rubbini G, Castro Navas FF, Marco C, Carrasco-Jiménez MP, Ballarotto M, Macchiarulo A, Hurtado-Guerrero R, Viola G, Lopez-Cara LC. Synthesis, biological evaluation, in silico modeling and crystallization of novel small monocationic molecules with potent antiproliferative activity by dual mechanism. Eur J Med Chem 2020; 207:112797. [PMID: 32977218 DOI: 10.1016/j.ejmech.2020.112797] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/28/2020] [Accepted: 08/30/2020] [Indexed: 12/28/2022]
Abstract
Seeking for new anticancer drugs with strong antiproliferative activity and simple molecular structure, we designed a novel series of compounds based on our previous reported pharmacophore model composed of five moieties. Antiproliferative assays on four tumoral cell lines and evaluation of Human Choline Kinase CKα1 enzymatic activity was performed for these compounds. Among tested molecules, those ones with biphenyl spacer showed betters enzymatic and antiproliferative activities (n-v). Docking and crystallization studies validate the hypothesis and confirm the results. The most active compound (t) induces a significant arrest of the cell cycle in G0/G1 phase that ultimately lead to apoptosis, following the mitochondrial pathway, as demonstrated for other choline kinase inhibitors. However additional assays reveal that the inhibition of choline uptake could also be involved in the antiproliferative outcome of this class of compounds.
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Affiliation(s)
- Lucía Serrán-Aguilera
- Department of Pharmaceutical and Organic Chemistry, Faculty of Pharmacy, Campus Cartuja S/n. University of Granada, 18010, Granada, Spain
| | - Elena Mariotto
- Department of Woman's and Child's Health, Laboratory of Oncohematology, University of Padova, 35128, Padova, Italy
| | - Gianluca Rubbini
- Department of Pharmaceutical and Organic Chemistry, Faculty of Pharmacy, Campus Cartuja S/n. University of Granada, 18010, Granada, Spain
| | - Francisco Fermín Castro Navas
- Department of Pharmaceutical and Organic Chemistry, Faculty of Pharmacy, Campus Cartuja S/n. University of Granada, 18010, Granada, Spain
| | - Carmen Marco
- Department of Biochemistry and Molecular Biology I, Faculty of Sciences, 18071, Granada, Spain
| | | | - Marco Ballarotto
- Department of Pharmaceutical Sciences, University of Perugia, Via Del Liceo 1, Perugia, 06123, Italy
| | - Antonio Macchiarulo
- Department of Pharmaceutical Sciences, University of Perugia, Via Del Liceo 1, Perugia, 06123, Italy
| | - Ramón Hurtado-Guerrero
- Institute of Biocomputation and Physics of Complex Systems (BIFI), University of Zaragoza, Institute for Biocomputation and Physics of Complex Systems (BIFI) and Laboratorio de Microscopías Avanzada (LMA), Mariano Esquillor S/n, Campus Rio Ebro, Edificio I+D; Fundacion ARAID, 50018, Zaragoza, Spain; Copenhagen Center for Glycomics, Department of Cellular and Molecular Medicine, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
| | - Giampietro Viola
- Department of Woman's and Child's Health, Laboratory of Oncohematology, University of Padova, 35128, Padova, Italy
| | - Luisa Carlota Lopez-Cara
- Department of Pharmaceutical and Organic Chemistry, Faculty of Pharmacy, Campus Cartuja S/n. University of Granada, 18010, Granada, Spain.
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Abstract
In the present work we studied the regional expression of voltage-dependent Ca channels in hair cells from the frog semicircular canals, employing whole-cell patch-clamp on isolated and in situ hair cells. Although Ca channels are thought to play a major role in afferent transmission, up to now no data were available regarding their distribution in vestibular organs. The problem appears of interest, especially in the light of recent results showing the presence of multiple Ca current components in semicircular canal hair cells. Our data suggest the presence, in all regions of the crista ampullaris, of two classes of cells, one displaying an inactivating Ca current (R1) and one lacking it. In the former cells, Ca current amplitude decreased from the central to the peripheral zone (the maximal currents being observed in the intermediate zone). Only L-type and R2 current components displayed regional differences in expression, whereas the size and properties of R1, although variable among cells, were not regionalized. However, in cells lacking R1, Ca current amplitudes were similar regardless of cell shape and location. The possible contributions of this Ca current distribution to afferent discharge properties are discussed.
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Affiliation(s)
- P Perin
- Department of Cell and Molecular Physiological and Pharmacological Sciences, Section of General Physiology and Cell Biophysics, University of Pavia, viale Forlanini 6, 27100 Pavia, Italy.
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Abstract
Hair cells in the frog semicircular canal, studied by the whole-cell patch-clamp technique, display three distinct Ca2+ currents: two non-inactivating components (L type and R type, the latter termed R2 in the following) and a second R type current (termed R1), which runs down first and inactivates in a Ca2+-dependent fashion. Since intracellular EGTA, up to 5 mM, did not display major effects on such inactivation, we used increasing amounts of BAPTA in the patch pipette, to control [Ca2+]i more efficiently and investigate whether modifications in [Ca2+]i at the cytoplasmic side of the channel affect the inactivation of the RI component and in general the gating of all channel types. The results here reported show that (1) K+ currents heavily contaminate recordings obtained using high concentrations of BAPTA in its commercially available K+ salt form; (2) BAPTA Cs+ salt can be satisfactorily employed to obtain reliable recordings; (3) the kinetics of channel gating and R1-channel inactivation are indeed markedly affected by effectively buffering [Ca2+]i.
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Affiliation(s)
- G Rispoli
- INFM, Dipartimento di Biologia, Università di Ferrara, Italy
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Abstract
L-type and R-type Ca(2+) currents were detected in frog semicircular canal hair cells. The former was noninactivating and nifedipine-sensitive (5 microM); the latter, partially inactivated, was resistant to omega-conotoxin GVIA (5 microM), omega-conotoxin MVIIC (5 microM), and omega-agatoxin IVA (0.4 microM), but was sensitive to mibefradil (10 microM). Both currents were sensitive to Ni(2+) and Cd(2+) (>10 microM). In some cells the L-type current amplitude increased almost twofold upon repetitive stimulation, whereas the R-type current remained unaffected. Eventually, run-down occurred for both currents, but was prevented by the protease inhibitor calpastatin. The R-type current peak component ran down first, without changing its plateau, suggesting that two channel types generate the R-type current. This peak component appeared at -40 mV, reached a maximal value at -30 mV, and became undetectable for voltages > or =0 mV, suggestive of a novel transient current: its inactivation was indeed reversibly removed when Ba(2+) was the charge carrier. The L-type current and the R-type current plateau were appreciable at -60 mV and peaked at -20 mV: the former current did not reverse for voltages up to +60 mV, the latter reversed between +30 and +60 mV due to an outward Cs(+) current flowing through the same Ca(2+) channel. The physiological role of these currents on hair cell function is discussed.
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Affiliation(s)
- M Martini
- Istituto Nazionale per la Fisica della Materia, Dipartimento di Biologia dell'Università-Sezione di Fisiologia Generale, 44100 Ferrara, Italy
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Rossi ML, Ferrary E, Martini M, Pelucchi B, Bernard C, Teixeira M, Sterkers O, Rubbini G, Fesce R. The effects of perilymphatic tonicity on endolymph composition and synaptic activity at the frog semicircular canal. Hear Res 1998; 121:99-108. [PMID: 9682812 DOI: 10.1016/s0378-5955(98)00071-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The effects of changes in perilymphatic tonicity on the semicircular canal were investigated by combining the measurements of transepithelial potential and endolymphatic ionic composition in the isolated frog posterior canal with the electrophysiological assessment of synaptic activity and sensory spike firing at the posterior canal in the isolated intact labyrinth. In the isolated posterior canal, the endolymph was replaced by an endolymph-like solution of known composition, in the presence of basolateral perilymph-like solutions of normal (230 mosmol/kg), reduced (105 mosmol/kg, low NaCl) or increased osmolality (550 mosmol/kg, Na-Gluconate added). Altered perilymphatic tonicity did not produce significant changes in endolymphatic ionic concentrations during up to 5 min. In the presence of hypotonic perilymph, decreased osmolality, K and Cl concentrations were observed at 10 min. In the presence of hypertonic perilymph, the endolymphatic osmolality began to increase at 5 min and by 10 min Na concentration had also significantly increased. On decreasing the tonicity of the external solution an immediate decline was observed in transepithelial potential, whereas hypertonicity produced the opposite effect. In the intact frog labyrinth, mEPSPs and spike potentials were recorded from single fibers of the posterior nerve in normal Ringer's (240 mosmol/kg) as well as in solutions with modified tonicity. Hypotonic solutions consistently decreased and hypertonic solutions consistently increased mEPSP and spike frequencies, independent of the species whose concentration was altered. These effects ensued within 1-2 min after the start of perfusion with the test solutions. In particular, when the tonicity was changed by varying Na concentration the mean mEPSP rate was directly related to osmolality. Size histograms of synaptic potentials were well described by single log-normal distribution functions under all experimental conditions. Hypotonic solutions (105 mosmol/kg) markedly shifted the histograms to the left. Hypertonic solutions (380-550 mosmol/kg, NaCl or Na-Gluconate added) shifted the histograms to the right. Hypertonic solutions obtained by adding sucrose to normal Ringer's solution (final osmolality 550 mosmol/kg) increased mEPSP and spike rates, but did not display appreciable effects on mEPSP size. All effects on spike discharge and on mEPSP rate and size were rapidly reversible. In Ca-free, 10 mM EGTA, Ringer's solution, the sensory discharge was completely abolished and did not recover on making the solution hypertonic. These results indicate that perilymphatic solutions with altered tonicity produce small and slowly ensuing changes in the transepithelial parameters which may indirectly affect the sensory discharge rate, whereas relevant, early and reversible effects occur at the cytoneural junction. In particular, the modulation of mEPSP amplitude appears to be postsynaptic; the presynaptic effect on mEPSP rate of occurrence is presumably linked to local calcium levels, in agreement with previous results indicating that calcium inflow is required to sustain basal transmitter release in this preparation.
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Affiliation(s)
- M L Rossi
- Dipartimento di Biologia, Sezione di Fisiologia Generale, Università di Ferrara, Italy
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