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Kaftalli J, Donato K, Bonetti G, Dhuli K, Macchia A, Maltese PE, Louise Herbst K, Michelini S, Chiurazzi P, Hill M, Michelini S, Michelini S, Marceddu G, Bernini A, Bertelli M. Author Correction: Aldo-keto reductase 1C2 (AKR1C2) as the second gene associated to non-syndromic primary lipedema: investigating activating mutation or overexpression as causative factors. Eur Rev Med Pharmacol Sci 2024; 28:2626. [PMID: 38567622 DOI: 10.26355/eurrev_202403_35776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Correction to: Eur Rev Med Pharmacol Sci 2023; 27 (6 Suppl): 127-136-DOI: 10.26355/eurrev_202312_34697 After publication and following some post-publication concerns, the authors have applied the following corrections to the galley proof. - The conflict of interest section has been amended as follows: J. Kaftalli and G. Marceddu are employees at MAGI EUREGIO. K. Donato is employee at MAGI EUREGIO and MAGISNAT. M. Bertelli is president of MAGI EUREGIO, MAGISNAT, and MAGI's LAB. G. Bonetti, K. Dhuli, A. Macchia, and P.E. Maltese are employees at MAGI's LAB. M. Bertelli, P.E. Maltese, K. Louise Herbst, Sa. Michelini, Se. Michelini, and P. Chiurazzi are patent inventors (US20220362260A1). M. Bertelli, P.E. Maltese, G. Marceddu are patent inventors (US20230173003A1). M. Bertelli, K. Dhuli and P.E. Maltese are patent inventors (WO2022079498A1). M. Bertelli, P.E. Maltese, Sa. Michelini, Se. Michelini, P. Chiurazzi, K. Louise Herbst, J. Kaftalli, K. Donato, and A. Bernini are patent applicants (Application Number 18/516,241). M. Bertelli, K. Donato, P. Chiurazzi, G. Marceddu, K. Dhuli, G. Bonetti and J. Kaftalli are patent applicants (Application Number: 18/466.879). M. Bertelli, G. Bonetti, G. Marceddu, K. Donato, K. Dhuli, J. Kaftalli, Sa. Michelini, and K. Louise Herbst are patent applicants (Application Number 63/495,155). The remaining authors have no conflict of interest to disclose. - Figure 5 has been modified as follows to better distinguish outliers: - The legend of Figure 5 has to be modified as follows: Relative expression of AKR1C1 and AKR1C3 in different groups (CTR = non affected controls, L = lipedema patients without overexpression of AKR1C2, L-over = Lipedema patients with overexpression of AKR1C2), showing that lipedema patients expressed AKR1C1 and AKR1C3 levels similar to the control group. Outliers are reported as black triangles. There are amendments to this paper. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/34697.
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Kaftalli J, Donato K, Bonetti G, Dhuli K, Macchia A, Maltese PE, Louise Herbst K, Michelini S, Chiurazzi P, Hill M, Michelini S, Michelini S, Marceddu G, Bernini A, Bertelli M. Aldo-keto reductase 1C2 (AKR1C2) as the second gene associated to non-syndromic primary lipedema: investigating activating mutation or overexpression as causative factors. Eur Rev Med Pharmacol Sci 2023; 27:127-136. [PMID: 38112953 DOI: 10.26355/eurrev_202312_34697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
OBJECTIVE Lipedema is a debilitating chronic condition predominantly affecting women, characterized by the abnormal accumulation of fat in a symmetrical, bilateral pattern in the extremities, often coinciding with hormonal imbalances. PATIENTS AND METHODS Despite the conjectured role of sex hormones in its etiology, a definitive link has remained elusive. This study explores the case of a patient possessing a mutation deletion within the C-terminal region of Aldo-keto reductases Member C2 (AKR1C2), Ser320PheTer2, that could lead to heightened enzyme activity. A cohort of 19 additional lipedema patients and 2 additional affected family members14 were enrolled in this study. The two additional affected family members are relatives of the patient with the AKR1C1 L213Q variant, which is included in the 19 cohorts and described in literature. RESULTS Our investigation revealed that AKR1C2 was overexpressed, as quantified by qPCR, in 5 out of 21 (24%) lipedema patients who did not possess mutations in the AKR1C2 gene. Collectively, these findings implicate AKR1C2 in the pathogenesis of lipedema, substantiating its causative role. CONCLUSIONS This study demonstrates that the activating mutation in the enzyme or its overexpression is a causative factor in the development of lipedema. Further exploration and replication in diverse populations will bolster our understanding of this significant connection.
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Kaftalli J, Bernini A, Bonetti G, Cristoni S, Marceddu G, Bertelli M. MAGI-Dock: a PyMOL companion to Autodock Vina. Eur Rev Med Pharmacol Sci 2023; 27:148-151. [PMID: 38112955 DOI: 10.26355/eurrev_202312_34699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Molecular docking simulation of small molecule drugs to macromolecules is valuable in structural biology and medicinal chemistry research. Its spread is supported by freely available software and databases. Like many resources in the free domain, docking software is command-line based, which comes to a limitation when defining the volume encompassing an active site, the so-called docking box. The box center and size, usually specified as cartesian coordinates, can be adjusted to correctly cover the active site only with a third-party molecular graphics program compatible with the docking input/output files, which reduces the choice to a few options. Moreover, the additional staff training may hamper the adoption of such software, e.g., in an enterprise environment. We exposed the functionality of Autodock and Autodock Vina into a graphical user interface extending upon that of PyMOL. Both the functionality of PyMOL and Autodock are merged, synergizing the capabilities of each program. To overcome such limitations, here we present MAGI-Dock. This graphical user interface combines the power of two of the most used free software for docking and graphics, Autodock Vina and PyMOL. MAGI-Dock is a free open-source software available under the GPL and can be downloaded from https://github.com/gjonwick/MAGI-Dock. The coupling of Autodock Vina with PyMOL through a graphical interface removes the molecular modeling limitations that come with Autodock. Therefore, MAGI-Dock could be conducive to lowering the learning curve for molecular docking simulation, with benefits for trainees in both academia and enterprise environments.
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Kaftalli J, Bonetti G, Marceddu G, Dhuli K, Maltese PE, Donato K, Herbst KL, Michelini S, Chiurazzi P, Hill M, Michelini S, Michelini S, Bernini A, Bertelli M. AKR1C1 and hormone metabolism in lipedema pathogenesis: a computational biology approach. Eur Rev Med Pharmacol Sci 2023; 27:137-147. [PMID: 38112954 DOI: 10.26355/eurrev_202312_34698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
OBJECTIVE Lipedema is an autosomal dominant genetic disease that mainly affects women. It is characterized by excess deposition of subcutaneous adipose tissue, pain, and anxiety. The genetic and environmental etiology of lipedema is still largely unknown. Although considered a rare disease, this pathology has been suggested to be underdiagnosed or misdiagnosed as obesity or lymphedema. Steroid hormones seem to be involved in the pathogenesis of lipedema. Indeed, aldo-keto reductase family 1 member C1 (AKR1C1), a gene coding for a protein involved in steroid hormones metabolism, was the first proposed to be correlated with lipedema. PATIENTS AND METHODS In this study, we employed a molecular dynamics approach to assess the pathogenicity of AKR1C1 genetic variants found in patients with lipedema. Moreover, we combined information theory and structural bioinformatics to identify AKR1C1 polymorphisms from the gnomAD database that could predispose to the development of lipedema. RESULTS Three genetic variants in AKR1C1 found in patients with lipedema were disruptive to the protein's function. Furthermore, eight AKR1C1 variants found in the general population could predispose to the development of lipedema. CONCLUSIONS The results of this study provide evidence that AKR1C1 may be a key gene in lipedema pathogenesis, and that common polymorphisms could predispose to lipedema development.
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Micheletti C, Bonetti G, Madeo G, Gadler M, Benedetti S, Guerri G, Cristofoli F, Generali D, Donofrio CA, Cominetti M, Fioravanti A, Riccio L, Manganotti P, Caruso P, Bernini A, Fulcheri E, Stuppia L, Gatta V, Cecchin S, Marceddu G, Bertelli M. Omics sciences and precision medicine in glioblastoma. Clin Ter 2023; 174:77-84. [PMID: 37994751 DOI: 10.7417/ct.2023.2474] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Abstract Glioblastoma is a highly aggressive and malignant type of brain cancer with a poor prognosis, despite current treatment options of surgery, radiation therapy, and chemotherapy. These treatments have limitations due to the aggressive nature of the cancer and the difficulty in completely removing the tumor without damaging healthy brain tissue. Personalized medicine, using genomic profiling to tailor treatment to the patient's specific tumor, and immunotherapy have shown promise in clinical trials. The blood-brain barrier also poses a challenge in delivering treatments to the brain, and researchers are exploring various approaches to bypass it. More effective, personalized treatment approaches are needed to improve outcomes for glioblastoma patients. This tumor is studied using genomics, transcriptomics, and proteomics techniques, to better understand its underlying molecular mechanisms. Recent studies have used these techniques to identify potential therapeutic targets, molecular subtypes, and heterogeneity of tumor cells. Advancements in omics sciences have improved our understanding of glioblastoma biology, and precision medicine approaches have impli-cations for more accurate diagnoses, improved treatment outcomes, and personalized preventive care. Precision medicine can match patients with drugs that target specific genetic mutations, improve clinical trials, and identify individuals at higher risk for certain diseases. Precision medicine, which involves customizing medical treatment based on an individual's genetic makeup, lifestyle, and environmental factors, has shown promise in improving treatment outcomes for glioblastoma patients. Identifying biomarkers is essential for patient stratification and treatment selection in precision medicine approaches for glioblastoma, and several biomarkers have shown promise in predicting patient response to treatment. Targeted therapies are a key component of precision medicine approaches in glioblastoma, but there is still a need to improve their effectiveness. Technical challenges, such as sample quality and availability, and challenges in analyzing and interpreting large amounts of data remain significant obstacles in omics sciences and precision medicine for glioblastoma. The clinical implementation of precision medicine in glioblastoma treatment faces challenges related to patient selection, drug development, and clinical trial design, as well as ethical and legal considerations related to patient privacy, informed consent, and access to expensive treatments.
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Affiliation(s)
| | | | - G Madeo
- MAGI'S LAB, Rovereto (TN), Italy
| | - M Gadler
- MAGI'S LAB, Rovereto (TN), Italy
| | | | - G Guerri
- MAGI'S LAB, Rovereto (TN), Italy
| | | | - D Generali
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy; Multidisciplinary Unit of Breast Pathology and Translational Research, Cremona Hospital, Italy
| | - C A Donofrio
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
- Division of Biology and Genetics, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - M Cominetti
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
| | - A Fioravanti
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
| | - L Riccio
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
| | - P Manganotti
- Clinical Unit of Neurology, Department of Medicine, Surgery and Health Sciences, Cattinara University Hospital ASUGI, University of Trieste, Trieste, Italy
| | - P Caruso
- Clinical Unit of Neurology, Department of Medicine, Surgery and Health Sciences, Cattinara University Hospital ASUGI, University of Trieste, Trieste, Italy
| | - A Bernini
- Department of Biotechnology, Chemistry, and Pharmacy, University of Siena, Siena, Italy
| | - E Fulcheri
- Fetal-Perinatal Pathology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy; Department of Surgical Sciences and Integrated Diagnostics, Università di Genova, Genoa, Italy
| | - L Stuppia
- Center for Advanced Studies and Technology, G. d'Annunzio University, Chieti, Italy
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, G. d'Annunzio University, Chieti, Italy
| | - V Gatta
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, G. d'Annunzio University, Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | | | | | - M Bertelli
- MAGI'S LAB, Rovereto (TN), Italy
- MAGI EUREGIO, Bolzano, Italy
- MAGISNAT, Peachtree Corners (GA), USA
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Medori MC, Micheletti C, Gadler M, Benedetti S, Guerri G, Cristofoli F, Generali D, Donofrio CA, Cominetti M, Fioravanti A, Riccio L, Bernini A, Fulcheri E, Calogero AE, Cannarella R, Stuppia L, Gatta V, Cecchin S, Marceddu G, Bertelli M. Omics sciences and precision medicine in prostate cancer. Clin Ter 2023; 174:95-103. [PMID: 37994753 DOI: 10.7417/ct.2023.2476] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Abstract In the last decade, Prostate Cancer (PCa) has emerged as the second most prevalent and serious medical condition, and is considered one of the leading factors contributing to global mortality rates. Several factors (genetic as well as environmental) contribute to its development and seriousness. Since the disease is usually asymptomatic at early stages, it is typically misdiagnosed or over-diagnosed by the diagnostic procedures currently in use, leading to improper treatment. Effective biomarkers and diagnostic techniques are desperately needed in clinical settings for better management of PCa patients. Studies integrating omics sciences have shown that the accuracy and dependability of diagnostic and prognostic evaluations have increased because of the use of omics data; also, the treatment plans using omics can be facilitated by personalized medicine. The present review emphasizes innovative multi-omics methodologies, encompassing proteomics, genomics, microbiomics, metabolomics, and transcriptomics, with the aim of comprehending the molecular alterations that trigger and contribute to PCa. The review shows how early genomic and transcriptomic research has made it possible to identify PCa-related genes that are controlled by tumor-relevant signaling pathways. Proteomic and metabolomic analyses have recently been integrated, advancing our understanding of the complex mechanisms at play, the multiple levels of regulation, and how they interact. By applying the omics approach, new vulnerabilities may be discovered, and customized treatments with improved efficacy will soon be accessible.
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Affiliation(s)
| | | | - M Gadler
- MAGI'S LAB, Rovereto (TN), Italy
| | | | - G Guerri
- MAGI'S LAB, Rovereto (TN), Italy
| | | | - D Generali
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy; Multidisciplinary Unit of Breast Pathology and Translational Research, Cremona Hospital, Italy
| | - C A Donofrio
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
- Division of Biology and Genetics, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - M Cominetti
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
| | - A Fioravanti
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
| | - L Riccio
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
| | - A Bernini
- Department of Biotechnology, Chemistry, and Pharmacy, University of Siena, Siena, Italy
- Department of Biotechnology, Chemistry, and Pharmacy, University of Siena, Siena, Italy
| | - E Fulcheri
- Fetal-Perinatal Pathology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy; Department of Surgical Sciences and Integrated Diagnostics, Università di Genova, Genoa, Italy
| | - A E Calogero
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - R Cannarella
- Department of Clinical and Experimental Medicine, University of Catania, Catania, Italy
| | - L Stuppia
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - V Gatta
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | | | | | - M Bertelli
- MAGI'S LAB, Rovereto (TN), Italy
- MAGI EUREGIO, Bolzano, Italy
- MAGISNAT, Atlanta Tech Park, Peachtree Corners, GA, USA
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Bonetti G, Madeo G, Michelini S, Ricci M, Cestari M, Michelini S, Gadler M, Benedetti S, Guerri G, Cristofoli F, Generali D, Donofrio CA, Cominetti M, Fioravanti A, Riccio L, Bernini A, Fulcheri E, Stuppia L, Gatta V, Cecchin S, Marceddu G, Bertelli M. Omics sciences and precision medicine in breast and ovarian cancer. Clin Ter 2023; 174:104-118. [PMID: 37994754 DOI: 10.7417/ct.2023.2477] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Background Human breast carcinoma is a complex disease, affecting 1 in 8 women worldwide. The seriousness of the disease increases when the definite cause of the disease remains obscure, thus making prognosis challenging. Researchers are emphasizing on adapting more advanced and targeted therapeutic approaches to address the multifaceted impacts of the disease. Hence, modern multi-omics systems have gained popularity among clinicians, as they offer insights into the genomic, pharmacogenomic, metabolomic, and microbiomic factors, thus allowing researchers to develop targeted and personalized approaches for breast cancer prevention and early detection, and eventually improving patient outcomes. Aim The primary focus of this study is to elucidate, through the integration of multi-omics research findings, the inherent molecular origins of diverse subtypes of breast cancer and to evaluate the effectiveness of these findings in reducing breast cancer-related mortalities. Methods Thorough investigation was conducted by reviewing reputable and authoritative medical journals, e-books, and online databases dedicated to cancer research. The Mendelian inheritance in man database (OMIM) was used to scrutinize specific genes and their respective loci associated with the development of different types of breast cancer. Results Our present research revealed the holistic picture of sundry molecular, genomic, pharmacogenomic, metabolomic, and microbiomic features of breast cancer. Such findings, like genetic alterations in highly penetrant genes, plus metabolomic and microbiomic signatures of breast cancer, unveil valuable insights and show great potential for multi-omics research in breast oncology. Conclusion Further research in omics sciences pertaining to breast cancer are at the forefront of shaping precise treatment and bolstering patient survival.
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Affiliation(s)
- G Bonetti
- MAGI'S LAB, Rovereto (TN), Italy
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - G Madeo
- MAGI'S LAB, Rovereto (TN), Italy
| | - S Michelini
- Vascular Diagnostics and Rehabilitation Service, Marino Hospital, ASL Roma 6, Marino, Italy
| | - M Ricci
- Division of Rehabilitation Medicine, Azienda Ospedaliero-Universitaria, Ospedali Riuniti di Ancona, Italy
| | - M Cestari
- Study Centre Pianeta Linfedema, Terni, Italy
- Lymphology Sector of the Rehabilitation Service, USL Umbria 2, Terni, Italy
| | - S Michelini
- Neurosurgery, University of Tor Vergata, Rome, Italy
| | - M Gadler
- MAGI'S LAB, Rovereto (TN), Italy
| | | | - G Guerri
- MAGI'S LAB, Rovereto (TN), Italy
| | | | - D Generali
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy; Multidisciplinary Unit of Breast Pathology and Translational Research, Cremona Hospital, Italy
| | - C A Donofrio
- Department of Neurosurgery, ASST Cremona, Italy
- Division of Biology and Genetics, Department of Molecular and Translational Medicine, University of Brescia, Italy
| | - M Cominetti
- Department of Neurosurgery, ASST Cremona, Italy
| | | | - L Riccio
- Department of Neurosurgery, ASST Cremona, Italy
| | - A Bernini
- Department of Biotechnology, Chemistry, and Pharmacy, University of Siena, Italy
| | - E Fulcheri
- Fetal-Perinatal Pathology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy; Department of Surgical Sciences and Integrated Diagnostics, Università di Genova, Italy
| | - L Stuppia
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, "G. d'Annunzio" University of Chieti-Pescara, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, Italy
| | - V Gatta
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, G. d'Annunzio" University of Chieti-Pescara, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, Italy
| | | | | | - M Bertelli
- MAGI'S LAB, Rovereto (TN), Italy
- MAGI EUREGIO, Bolzano, Italy
- MAGISNAT, Peachtree Corners (GA), USA
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Madeo G, Bonetti G, Gadler M, Benedetti S, Guerri G, Cristofoli F, Generali D, Donofrio CA, Cominetti M, Fioravanti A, Riccio L, Bernini A, Fulcheri E, Iaconelli A, Aquilanti B, Matera G, Stuppia L, Gatta V, Cecchin S, Marceddu G, Bertelli M. Omics sciences and precision medicine in colon cancer. Clin Ter 2023; 174:55-67. [PMID: 37994749 DOI: 10.7417/ct.2023.2472] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Abstract Colon cancer presents a complex pathophysiological landscape, which poses a significant challenge to the precise prediction of patient prognosis and treatment response. However, the emergence of omics sciences such as genomics, transcriptomics, proteomics, and metabolomics has provided powerful tools to identify molecular alterations and pathways involved in colon cancer development and progression. To address the lack of literature exploring the intersection of omics sciences, precision medicine, and colon cancer, we conducted a comprehensive search in ScienceDirect and PubMed databases. We included systematic reviews, reviews, case studies, clinical studies, and randomized controlled trials that were published between 2015-2023. To refine our search, we excluded abstracts and non-English studies. This review provides a comprehensive summary of the current understanding of the latest developments in precision medicine and omics sciences in the context of colon cancer. Studies have identified molecular subtypes of colon cancer based on genomic and transcrip-tomic profiles, which have implications for prognosis and treatment selection. Furthermore, precision medicine (which involves tailoring treatments, based on the unique molecular characteristics of each patient's tumor) has shown promise in improving outcomes for colon cancer patients. Omics sciences and precision medicine hold great promise for identifying new therapeutic targets and developing more effective treatments for colon cancer. Although not strictly designed as a systematic review, this review provides a readily accessible and up-to-date summary of the latest developments in the field, highlighting the challenges and opportunities for future research.
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Affiliation(s)
- G Madeo
- MAGI'S LAB, Rovereto (TN), Italy
| | - G Bonetti
- MAGI'S LAB, Rovereto (TN), Italy
- Department of Pharmaceutical Sciences, University of Perugia, Italy
| | - M Gadler
- MAGI'S LAB, Rovereto (TN), Italy
| | | | - G Guerri
- MAGI'S LAB, Rovereto (TN), Italy
| | | | - D Generali
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy; Multidisciplinary Unit of Breast Pathology and Translational Research, Cremona Hospital, Italy
| | - C A Donofrio
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
- Division of Biology and Genetics, Department of Molecular and Translational Medicine, University of Brescia, Italy
| | - M Cominetti
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
| | - A Fioravanti
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
| | - L Riccio
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
| | - A Bernini
- Department of Biotechnology, Chemistry, and Pharmacy, University of Siena, Italy
| | - E Fulcheri
- Fetal-Perinatal Pathology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy; Department of Surgical Sciences and Integrated Diagnostics, Università di Genova, Italy
| | - A Iaconelli
- UOSD Medicina Bariatrica, Fondazione Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | - B Aquilanti
- UOSD Medicina Bariatrica, Fondazione Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | - G Matera
- UOSD Medicina Bariatrica, Fondazione Policlinico Agostino Gemelli IRCCS, Rome, Italy
| | - L Stuppia
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, "G. d'Annunzio" University of Chieti-Pescara, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - V Gatta
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, "G. d'Annunzio" University of Chieti-Pescara, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | | | | | - M Bertelli
- MAGI'S LAB, Rovereto (TN), Italy
- MAGI EUREGIO, Bolzano, Italy
- MAGISNAT, Atlanta Tech Park, Peachtree Corners, GA, USA
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Micheletti C, Dhuli K, Donato K, Gadler M, Benedetti S, Guerri G, Cristofoli F, Generali D, Donofrio CA, Cominetti M, Fioravanti A, Riccio L, Bernini A, Fulcheri E, Stuppia L, Stuppia L, Gatta V, Cristoni S, Cecchin S, Marceddu G, Bertelli M. Omics sciences and precision medicine in lung cancer. Clin Ter 2023; 174:37-45. [PMID: 37994747 DOI: 10.7417/ct.2023.2470] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Abstract Lung cancer is a complex disease, with a wide range of genetic alterations and clinical presentations. Understanding the natural and clinical history of the disease is crucial for developing effective diagnostic and treatment strategies. Omics approaches, such as genomics, transcriptomics, proteomics, and metabolomics, have emerged as powerful tools for understanding the molecular mechanisms underlying lung cancer and for identifying novel biomarkers and therapeutic targets. These approaches enable researchers to examine the entire genome, transcriptome, proteome, or metabolome of a cell or tissue, providing a comprehensive view of the biological processes involved in lung cancer development and progression. Targeted therapies that address specific genetic mutations and pathways hold promise for improving the diagnosis and treatment of this disease.
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Affiliation(s)
| | - K Dhuli
- MAGI'S LAB, Rovereto (TN), Italy
| | - K Donato
- MAGI EUREGIO, Bolzano, Italy
- MAGISNAT, Atlanta Tech Park, Peachtree Corners, GA, USA
| | - M Gadler
- MAGI'S LAB, Rovereto (TN), Italy
| | | | - G Guerri
- MAGI'S LAB, Rovereto (TN), Italy
| | | | - D Generali
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy; Multidisciplinary Unit of Breast Pathology and Translational Research, Cremona Hospital, Italy
| | - C A Donofrio
- Department of Neurosurgery, ASST Cremona, Italy
- Division of Biology and Genetics, Department of Molecular and Translational Medicine, University of Brescia, Italy
| | - M Cominetti
- Department of Neurosurgery, ASST Cremona, Italy
| | | | - L Riccio
- Department of Neurosurgery, ASST Cremona, Italy
| | - A Bernini
- Department of Biotechnology, Chemistry, and Pharmacy, University of Siena, Italy
| | - E Fulcheri
- Fetal-Perinatal Pathology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy; Department of Surgical Sciences and Integrated Diagnostics, Università di Genova, Italy
| | - L Stuppia
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, "G. d'Annunzio" University of Chieti-Pescara, Italy
| | - L Stuppia
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, Italy
| | - V Gatta
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, "G. d'Annunzio" University of Chieti-Pescara, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, Italy
| | - S Cristoni
- ISB Ion Source & Bio-technologies srl, Bresso (MI), Italy
| | | | | | - M Bertelli
- MAGI'S LAB, Rovereto (TN), Italy
- MAGI EUREGIO, Bolzano, Italy
- MAGISNAT, Atlanta Tech Park, Peachtree Corners, GA, USA
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10
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Bonetti G, Donato K, Dhuli K, Gadler M, Benedetti S, Guerri G, Cristofoli F, Generali D, Donofrio CA, Cominetti M, Fioravanti A, Riccio L, Bernini A, Fulcheri E, Cavalca D, Stuppia L, Stuppia L, Gatta V, Cristoni S, Cecchin S, Marceddu G, Bertelli M. Omics sciences and precision medicine in sarcoma. Clin Ter 2023; 174:68-76. [PMID: 37994750 DOI: 10.7417/ct.2023.2473] [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] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
Background Sarcomas are a relatively rare but diverse group of cancers that typically develop in the mesenchymal cells of bones and soft tissues. Occurring in more than 70 subtypes, sarcomas have broad histological presentations, posing significant challenges of prognosis and treatment. Modern multi-omics studies, which include genomics, proteomics, metabolomics, and micro-biomics, are vital to understand the underlying mechanisms of sarcoma development and progression, identify molecular biomarkers for early detection, develop personalized treatment plans, and discover drug resistance mechanisms in sarcomas to upsurge the survival rate. Aim This study aims to highlight the genetic risk factors responsible for sarcoma-genesis, and to present a comprehensive review of multi-omics studies about sarcoma. Methods Extensive literature research was undertaken using reliable and authentic medical journals, e-books, and online cancer research databases. Mendelian inheritance in man database (OMIM) was explored to study particular genes and their loci that are responsible to cause various sarcomas. Result This in-depth research led to the finding out that omics studies provide a more comprehensive understanding of underlying molecular mechanisms of sarcomas. Through genomics, we can reveal genetic alterations that predispose to sarcoma, like mutation in TP53, NF1, and so on. Pharmacogenomics enable us to find molecular targets for specific drugs. Whereas, proteomic and metabolomic studies provide insights into the biological pathways involved in sarcoma development and progression. Conclusion Future advancements in omics sciences for sarcoma are on the cutting-edge of defining precision treatment plans and improved resilience of sarcoma patients.
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Affiliation(s)
- G Bonetti
- MAGI'S LAB, Rovereto (TN), Italy
- Department of Pharmaceutical Sciences, University of Perugia, Perugia, Italy
| | - K Donato
- MAGI EUREGIO, Bolzano, Italy
- MAGISNAT, Peachtree Corners (GA), USA
| | - K Dhuli
- MAGI'S LAB, Rovereto (TN), Italy
| | - M Gadler
- MAGI'S LAB, Rovereto (TN), Italy
| | | | - G Guerri
- MAGI'S LAB, Rovereto (TN), Italy
| | | | - D Generali
- Department of Medicine, Surgery and Health Sciences, University of Trieste, Italy; Multidisciplinary Unit of Breast Pathology and Translational Research, Cremona Hospital, Italy
| | - C A Donofrio
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
- Division of Biology and Genetics, Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - M Cominetti
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
| | - A Fioravanti
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
| | - L Riccio
- Department of Neurosurgery, ASST Cremona, Cremona, Italy
| | - A Bernini
- Department of Biotechnology, Chemistry, and Pharmacy, University of Siena, Siena, Italy
| | - E Fulcheri
- Fetal-Perinatal Pathology Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy; Department of Surgical Sciences and Integrated Diagnostics, Università di Genova, Genoa, Italy
| | - D Cavalca
- Laser Surgery Operating Unit, Plastic Surgery Department, San Rocco Clinical Institute, Ome, BS, Italy
| | - L Stuppia
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - L Stuppia
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - V Gatta
- Department of Psychological Health and Territorial Sciences, School of Medicine and Health Sciences, "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
- Unit of Molecular Genetics, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - S Cristoni
- ISB Ion Source & Biotechnologies srl, Bresso (MI), Italy
| | | | | | - M Bertelli
- MAGI'S LAB, Rovereto (TN), Italy
- MAGI EUREGIO, Bolzano, Italy
- MAGISNAT, Peachtree Corners (GA), USA
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11
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Camilleri G, Kiani AK, Herbst KL, Kaftalli J, Bernini A, Dhuli K, Manara E, Bonetti G, Stuppia L, Paolacci S, Dautaj A, Bertelli M. Genetics of fat deposition. Eur Rev Med Pharmacol Sci 2021; 25:14-22. [PMID: 34890030 DOI: 10.26355/eurrev_202112_27329] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Adipose tissue distribution usually varies among men and women. In men, adipose tissue is known to accumulate in the abdominal region surrounding the visceral organs (android fat distribution) whereas, in women, the accumulation of adipose tissue generally occurs in the gluteal-femoral regions (gynoid fat distribution). In some cases, however, android distribution can be found in women and gynoid distribution can be found in men. The regulation of adipose tissue accumulation involves interaction of a variety of genetic and environmental factors. This review examines genetic factors that cause differential distribution of adipose tissue in different depots of the body, between men and women and between different ethnicities. Genome-wide association studies can be used to identify genetic associations with the distribution and accumulation of adipose tissue. Insight into adipose tissue accumulation and distribution mechanisms could lead to development of personalized interventions for people who develop increased fat mass.
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12
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Kiani AK, Mor M, Bernini A, Fulcheri E, Michelini S, Herbst KL, Buffelli F, Belgrado JP, Kaftalli J, Stuppia L, Dautaj A, Dhuli K, Guda T, Manara E, Maltese PE, Michelini S, Chiurazzi P, Paolacci S, Ceccarini MR, Beccari T, Bertelli M. Steroid-converting enzymes in human adipose tissues and fat deposition with a focus on AKR1C enzymes. Eur Rev Med Pharmacol Sci 2021; 25:23-32. [PMID: 34890031 DOI: 10.26355/eurrev_202112_27330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Adipocytes express various enzymes, such as aldo-keto reductases (AKR1C), 11β-hydroxysteroid dehydrogenase (11β-HSD), aromatase, 5α-reductases, 3β-HSD, and 17β-HSDs involved in steroid hormone metabolism in adipose tissues. Increased activity of AKR1C enzymes and their expression in mature adipocytes might indicate the association of these enzymes with subcutaneous adipose tissue deposition. The inactivation of androgens by AKR1C enzymes increases adipogenesis and fat mass, particularly subcutaneous fat. AKR1C also causes reduction of estrone, a weak estrogen, to produce 17β-estradiol, a potent estrogen and, in addition, it plays a role in progesterone metabolism. Functional impairments of adipose tissue and imbalance of steroid biosynthesis could lead to metabolic disturbances. In this review, we will focus on the enzymes involved in steroid metabolism and fat tissue deposition.
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13
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Braga PC, Piatti G, Bernini A, Sasso M. Topical Tolerability of Calcitonin Nasal Preparation, its Excipients and Sodium Taurocholate Studied by SEM and Mucociliary Transport Velocity. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/bf03258377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Braga PC, Piatti G, Dal Sasso M, Bernini A. The effects of calcitonin nasal preparations and their excipients on mucociliary clearance in an ex-vivo frog palate test. J Pharm Pharmacol 2011; 44:938-40. [PMID: 1361543 DOI: 10.1111/j.2042-7158.1992.tb03242.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Abstract
The topical tolerability of the commercial preparation of 1–7 Asu-eel and salmon calcitonin with 2% ammonium glycyrrhyzinate and 0·01% benzalkonium chloride, respectively, and of their excipients mixture in solution with increasing concentrations of ammonium glycyrrhyzinate and benzalkonium chloride, respectively, were assessed by investigating their effects on the mucociliary transport velocity in the ex-vivo frog palate preparation. This preparation provides an integrated biological model readily usable in the laboratory which closely resembles human nasal mucociliary clearance mechanism and can be used for rapid testing and toxicity of agents proposed for topical administration in the upper and lower airways. Frog-Ringer control, 1–7 Asu-eel and salmon calcitonin commercial spray preparations and the excipients plus 2% ammonium glycyrrhyzinate and plus 0·01% benzalkonium chloride did not modify significantly the mucociliary transport velocity, confirming their very good tolerability on ciliated epithelium. Higher concentrations of ammonium glycyrrhyzinate (10 and 20%) caused significant slowing, on average —32 and —55%, respectively. Higher concentrations of benzalkonium chloride (0·05 and 0·1%) also caused significant slowing, on average, —43·5 and —87%, respectively.
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Affiliation(s)
- P C Braga
- Department of Pharmacology, School of Medicine, University of Milan, Italy
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15
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Giglioni S, Leoncini R, Aceto E, Chessa A, Civitelli S, Bernini A, Tanzini G, Carraro F, Pucci A, Vannoni D. Adenosine kinase gene expression in human colorectal cancer. Nucleosides Nucleotides Nucleic Acids 2008; 27:750-4. [PMID: 18600536 DOI: 10.1080/15257770802145629] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Real-time reverse transcription polymerase chain reaction (qRT-PCR) was used to evaluate gene expression of adenosine kinase, a key enzyme in adenosine metabolism, in human intestinal biopsy specimens of 10 colorectal cancer patients. Quantitative mRNA expression levels were normalized against the reference gene beta-actin. The results showed that adenosine kinase gene expression was significantly higher in cancer than in normal-appearing tissue, in line with our previous measurements of adenosine kinase enzyme activities in colorectal tumor samples.
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Affiliation(s)
- S Giglioni
- Dipartimento di Medicina Interna, Sc. Endocrino-Metaboliche e Biochimica, Università di Siena, Italy
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16
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D'Onghia V, Leoncini R, Carli R, Santoro A, Giglioni S, Sorbellini F, Marzocca G, Bernini A, Campagna S, Marinello E, Vannoni D. Circulating gastrin and ghrelin levels in patients with colorectal cancer: correlation with tumour stage, Helicobacter pylori infection and BMI. Biomed Pharmacother 2007; 61:137-41. [PMID: 17258885 DOI: 10.1016/j.biopha.2006.08.007] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2006] [Accepted: 08/23/2006] [Indexed: 12/12/2022] Open
Abstract
Many studies have pointed out a possible role of gut peptides, including gastrin and ghrelin, in the pathogenesis and natural history of gastrointestinal malignancies, one of the most common death cause in the Western world. The objective of this work is to check gastrin and ghrelin serum levels in patients with colorectal cancer according to tumour's location, stage, Helicobacter pylori infection and BMI, in order to understand the two peptides' behaviour through the tumour's natural history and evaluate their assay's use in research and clinical practice. Twenty-nine subjects affected by colorectal cancer and 50 healthy controls were studied. Circulating gastrin and ghrelin levels and H. pylori serum antibodies were assessed by radioimmunologic assay and ELISA method. Gastrin and ghrelin serum levels were respectively slightly higher and significantly lower in colon cancer patients than in controls. Gastrin levels were higher in patients carrying left colon cancer and H. pylori infection while ghrelin levels were lower in both these groups. Both hormones' serum levels decreased from tumour earlier to later stages. Significant differences persisted in the correlation between BMI and ghrelin levels in controls but not in patients. Additional studies are necessary to ascertain the significance of gastrin and ghrelin opposite behaviour in colon cancer probably linked with interferences in endocrine pathways involving other gut peptides in this compromised condition.
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Affiliation(s)
- V D'Onghia
- Dip Di Medicina Interna, Sc. Endocrino metaboliche e Biochimica, Sez. di Biochimica, Università di Siena, Via A. Moro 2, 53100 Siena, Italy
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17
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Vannoni D, Di Pietro MC, Rosi F, Bernini A, Leoncini R, Tabucchi A, Carlucci F, Floccari F, Santoro A, Tanzini G, Marinello E. Metabolism of adenosine in human colorectal tumour. Nucleosides Nucleotides Nucleic Acids 2005; 23:1455-7. [PMID: 15571276 DOI: 10.1081/ncn-200027676] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The aim of this work is to analyse the activities of the enzymes metabolising adenosine in fragments of neoplastic and normal-appearing mucosa, surrounding the tumour in 20 patients affected by colorectal cancer. The results show that the activities of the enzymes are markedly higher in tumour in comparison to normal mucosa to coope with the accelerated purine metabolism in cancerous tissues.
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Affiliation(s)
- D Vannoni
- Department Medicina Interna, Sc. Endocrino Metaboliche e Biochimica, University of Siena, Italy
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18
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Abstract
Proteins, with the large variety of chemical groups they present at their molecular surface, are a class of molecules which can be very informative on most of the possible solute-solvent interactions. Hen egg white lysozyme has been used as a probe to investigate the complex solvent dynamics occurring at the protein surface, by analysing the results obtained from Nuclear Magnetic Resonance, X-ray diffractometry and Molecular Dynamics simulations. A consistent overall picture for the dynamics of water molecules close to the protein is obtained, suggesting that a rapid exchange occurs, in a picosecond timescale, among all the possible hydration surface sites both in solution and the solid state, excluding the possibility that solvent molecules can form liquid-crystal-like supramolecular adducts, which have been proposed as a molecular basis of 'memory of water'.
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Affiliation(s)
- A Bernini
- Department of Molecular Biology, Biomolecular Structure Research Center, University of Siena, Via Fiorentina 1, 53100 Siena, Italy
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19
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Vannoni D, Bernini A, Carlucci F, Civitelli S, Di Pietro MC, Leoncini R, Rosi F, Tabucchi A, Tanzini G, Marinello E. Enzyme activities controlling adenosine levels in normal and neoplastic tissues. Med Oncol 2004; 21:187-95. [PMID: 15299191 DOI: 10.1385/mo:21:2:187] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2003] [Accepted: 01/21/2004] [Indexed: 11/11/2022]
Abstract
Adenosine is known to be associated with effects such as inhibition of immune response, coronary vasodilation, stimulation of angiogenesis, and inhibition of inflammatory reactions. Some authors suggest that adenosine may also have similar functions in tumor tissues. Tissue levels of adenosine are under close regulation by different enzymes acting at different levels. Adenosine is produced from AMP by the action of 5'-nucleotidase (5'-NT) and is converted back into AMP by adenosine kinase (AK) or into inosine by adenosine deaminase (ADA). Inosine is converted into purine catabolites by purine nucleoside phosphorylase (PNP), whereas AMP is converted into ADP and ATP by adenylate kinase (MK). The aim of this study was to analyze the activities of the above enzymes in fragments of neoplastic and apparently normal mucosa, obtained less than 5 cm and at least 10 cm from tumors, in 40 patients with colorectal cancer. The results showed much higher activities of ADA, AK, 5'-NT, and PNP in tumor tissue than in neighboring mucosa (p > 0.01 for ADA, AK, and PNP; p > 0.05 for 5'-NT), suggesting that the activities of purine metabolizing enzymes increase to cope with accelerated purine metabolism in cancerous tissue. The simultaneous increase in ADA and 5'-NT activities might be a physiological attempt by cancer cells to provide more substrate to accelerate salvage pathway activity.
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Affiliation(s)
- D Vannoni
- Department of Internal Medicine, Endocrine-Metabolic Sciences and Biochemistry, Division of Biochemistry, University of Siena, 53100 Siena, Italy.
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20
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Niccolai N, Ciutti A, Spiga O, Scarselli M, Bernini A, Bracci L, Di Maro D, Dalvit C, Molinari H, Esposito G, Temussi PA. NMR studies of protein surface accessibility. J Biol Chem 2001; 276:42455-61. [PMID: 11546818 DOI: 10.1074/jbc.m107387200] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Characterization of protein surface accessibility represents a new frontier of structural biology. A surface accessibility investigation for two structurally well-defined proteins, tendamistat and bovine pancreatic trypsin inhibitor, is performed here by a combined analysis of water-protein Overhauser effects and paramagnetic perturbation profiles induced by the soluble spin-label 4-hydroxy-2,2,6,6-tetramethyl-piperidine-1-oxyl on NMR spectra. This approach seems to be reliable not only for distinguishing between buried and exposed residues but also for finding molecular locations where a network of more ordered waters covers the protein surface. From the presented set of data, an overall picture of the surface accessibility of the two proteins can be inferred. Detailed knowledge of protein accessibility can form the basis for successful design of mutants with increased activity and/or greater specificity.
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Affiliation(s)
- N Niccolai
- Biomolecular Structure Research Center and Department of Molecular Biology, University of Siena, I-53100 Siena, Italy
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21
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Niccolai N, Spadaccini R, Scarselli M, Bernini A, Crescenzi O, Spiga O, Ciutti A, Di Maro D, Bracci L, Dalvit C, Temussi PA. Probing the surface of a sweet protein: NMR study of MNEI with a paramagnetic probe. Protein Sci 2001; 10:1498-507. [PMID: 11468346 PMCID: PMC2374096 DOI: 10.1110/ps.30101] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.3] [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] [Indexed: 10/17/2022]
Abstract
The design of safe sweeteners is very important for people who are affected by diabetes, hyperlipemia, and caries and other diseases that are linked to the consumption of sugars. Sweet proteins, which are found in several tropical plants, are many times sweeter than sucrose on a molar basis. A good understanding of their structure-function relationship can complement traditional SAR studies on small molecular weight sweeteners and thus help in the design of safe sweeteners. However, there is virtually no sequence homology and very little structural similarity among known sweet proteins. Studies on mutants of monellin, the best characterized of sweet proteins, proved not decisive in the localization of the main interaction points of monellin with its receptor. Accordingly, we resorted to an unbiased approach to restrict the search of likely areas of interaction on the surface of a typical sweet protein. It has been recently shown that an accurate survey of the surface of proteins by appropriate paramagnetic probes may locate interaction points on protein surface. Here we report the survey of the surface of MNEI, a single chain monellin, by means of a paramagnetic probe, and a direct assessment of bound water based on an application of ePHOGSY, an NMR experiment that is ideally suited to detect interactions of small ligands to a protein. Detailed surface mapping reveals the presence, on the surface of MNEI, of interaction points that include residues previously predicted by ELISA tests and by mutagenesis.
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Affiliation(s)
- N Niccolai
- Dipartimento di Biologia Molecolare, Università di Siena, Siena, Italy.
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22
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Bracci L, Pini A, Lozzi L, Lelli B, Battestin P, Spreafico A, Bernini A, Niccolai N, Neri P. Mimicking the nicotinic receptor binding site by a single chain Fv selected by competitive panning from a synthetic phage library. J Neurochem 2001; 78:24-31. [PMID: 11432970 DOI: 10.1046/j.1471-4159.2001.00398.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We have developed a novel competitive method to select from a phage display library a single chain Fv which is able to mimic the alpha-bungarotoxin binding site of the muscle nicotinic receptor. The single chain Fv was selected from a large synthetic library using alpha-bungarotoxin-coated magnetic beads. Toxin-bound phages were then eluted by competition with affinity purified nicotinic receptor. Recognition of the toxin by the anti-alpha-bungarotoxin single chain Fv was very similar to that of the receptor, such as indicated by the epitope mapping of alpha-bungarotoxin through overlapping synthetic peptides. Moreover, several positively charged residues located in the toxin second loop and in the C-terminal region were found to be critical, to a similar extent, for toxin recognition by the single chain Fv and the receptor. However, although the anti-alpha-bungarotoxin single chain Fv seems to mimic the toxin binding site of the nicotinic receptor, it does not bind other nicotinic agonists or antagonists. Our results suggest that competitive selection of anti-ligand antibody phages can allow the production of receptor-mimicking molecules directly and exclusively targeted at one specific ligand. Since physiologically and pharmacologically different ligands can produce opposite effects on receptor functions, such selective ligand decoys can have important therapeutic applications.
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Affiliation(s)
- L Bracci
- Dipartimento di Biologia Molecolare, Sez. Chimica Biologica, Università di Siena, Via Fiorentina 1, 53100 Siena, Italy.
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23
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Bernini A, Spencer M, Frizelle S, Madoff RD, Willmott LD, McCormick SR, Niehans GA, Ho SB, Kratzke RA. Evidence for colorectal cancer micrometastases using reverse transcriptase-polymerase chain reaction analysis of MUC2 in lymph nodes. Cancer Detect Prev 2000; 24:72-9. [PMID: 10757125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Poor survival in patients following resection for early stage colorectal cancer is thought to be due in part to the presence of occult micrometastases at the time of surgery. The MUC2 mucin gene is highly expressed in the colon and associated colorectal tumors and may be a candidate marker for colorectal cancer micrometastases. We have used RT-PCR to detect expression of MUC2 mRNA transcripts in order to identify possible lymph node micrometastases in node negative (Stage I and II, or Dukes A and B) colorectal cancer patients. A total of 396 nodes (histologic stage N0) from 34 colon and nine rectal cancers were studied by RT-PCR analysis with nested primers for MUC2 (an average of 7.6 nodes per case). In the primary tumors, 42/43 (98.1%) were positive for MUC2 by RT-PCR. Evidence of the presence of MUC2 was demonstrated in nodes from 0 of 10 (0%) patients with Tis or T1, one of six (16.7%) from T2, 10 of 25 (40.0%) from T3, and one of two (50%) from T4 tumors. MUC2 RT-PCR was negative in six nodes from three patients with non-malignant colon disease and positive in histologically positive lymph nodes from six of six (100%) stage III colon cancers. In this study, using RT-PCR to detect the presence of MUC2 transcripts, we have found preliminary evidence for possible micrometastatic disease in approximately a third of histologically negative N0 colorectal cancer patients. The increased presence of MUC2 expression also correlated with more advanced T stage. We conclude that MUC2 RT-PCR may be a sensitive and specific marker for occult micrometastases. This technique has the potential to identify a group of colorectal cancer patients at risk for early cancer recurrence.
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Affiliation(s)
- A Bernini
- Department of Surgery, Minneapolis VA Medical Center and the University of Minnesota Medical School, 55417, USA
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24
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Scarselli M, Bernini A, Segoni C, Molinari H, Esposito G, Lesk AM, Laschi F, Temussi P, Niccolai N. Tendamistat surface accessibility to the TEMPOL paramagnetic probe. J Biomol NMR 1999; 15:125-133. [PMID: 10605086 DOI: 10.1023/a:1008319507565] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
TEMPOL, the soluble spin-label 4-hydroxy-2,2,6,6-tetramethyl-piperidine-1-oxyl, has been used to determine the surface characteristics of tendamistat, a small protein with a well-characterised structure both in solution and in the crystal. A good correlation has been found between predicted regions of exposed protein surface and the intensity attenuations induced by the probe on 2D NMR TOCSY cross peaks of tendamistat in the paramagnetic water solution. All the high paramagnetic effects have been interpreted in terms of more efficient competition of TEMPOL with water molecules at some surface positions. The active site of tendamistat coincides with the largest surface patch accessible to the probe. A strong hydration of protein N and C termini can also be suggested by this structural approach, as these locations exhibit reduced paramagnetic perturbations. Provided that the solution structure is known, the use of this paramagnetic probe seems to be well suited to delineate the dynamic behaviour of the protein surface and, more generally, to gain relevant information about the molecular presentation processes.
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Affiliation(s)
- M Scarselli
- Dipartimento di Biologia Molecolare, Università di Siena, Italy
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25
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Di Maro D, Scarselli M, Bernini A, Cresti S, Rossolini GM, Lozzi L, Neri P, Niccolai N. On the structural stability of a small bioactive peptide of potential use in biotechnology. J Biomol Struct Dyn 1999; 16:1053-9. [PMID: 10333175 DOI: 10.1080/07391102.1999.10508314] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
A tridecapeptide with the sequence CCEICCNPACFGC has been synthesized to reproduce the active moiety of a heat stable enterotoxin from Vibrio cholerae. The proton NMR analysis indicates, for the active synthetic fragment, a rigid secondary structure stabilised by three disulfide bridges. Such a rigid peptide, suitably detoxified and activated, could be a good candidate to be used as a carrier for linear bioactive peptides or other functional groups.
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Affiliation(s)
- D Di Maro
- Dipartimento di Biologia Molecolare, Università di Siena, Italy
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Bernini A, Madoff RD, Lowry AC, Spencer MP, Gemlo BT, Jensen LL, Wong WD. Should patients with combined colonic inertia and nonrelaxing pelvic floor undergo subtotal colectomy? Dis Colon Rectum 1998; 41:1363-6. [PMID: 9823800 DOI: 10.1007/bf02237050] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.6] [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: 02/08/2023]
Abstract
PURPOSE Treatment of severe constipation caused by combined colonic inertia and nonrelaxing pelvic floor is controversial. This study is designed to evaluate the outcome of preoperative biofeedback and subtotal colectomy for patients with combined colonic inertia and nonrelaxing pelvic floor. METHODS One hundred six patients who underwent subtotal colectomy for intractable constipation from 1982 through 1995 answered a detailed questionnaire regarding postoperative bowel function, symptoms of abdominal pain and bloating, and degree of satisfaction after the operation. Sixteen of these patients had a combination of colonic inertia and nonrelaxing pelvic floor diagnosed by transit marker study, electromyography, and defecography. These patients completed preoperative biofeedback training. RESULTS Electromyographic relaxation of pelvic floor musculature was demonstrated after the biofeedback treatment in all patients, but symptoms of difficult evacuation persisted. Postoperatively, seven patients (43 percent) had complete resolution of symptoms of constipation or difficult evacuation. Six patients still complained of incomplete evacuation that was severe in two and unresponsive to postoperative biofeedback. Three patients (18 percent) complained of diarrhea (>5 bowel movements per day) and incontinence of liquid stools (at least one episode a week). Nine patients (56 percent) were satisfied despite persistent symptoms. CONCLUSIONS Subtotal colectomy can improve some symptoms in patients with slow transit constipation and nonrelaxing pelvic floor. However, incomplete evacuation persists in a significant number of patients and almost one-half of patients are dissatisfied with their surgery.
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Affiliation(s)
- A Bernini
- Division of Colon and Rectal Surgery, University of Minnesota Medical School, Minneapolis, USA
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Scarselli M, Esposito G, De Magistris MT, Domenighini M, Rappuoli R, Burroni G, Bernini A, Niccolai N. NMR studies on the structure/function correlations of T-cell-epitope analogs from pertussis toxin. Eur J Biochem 1998; 254:313-7. [PMID: 9660185 DOI: 10.1046/j.1432-1327.1998.2540313.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A synthetic tridecapeptide, corresponding to the 30-42 fragment of the S1 subunit of pertussis toxin, has been structurally characterised by using NMR spectroscopy. The molecule corresponds to a T-cell epitope of the bacterial toxin which has been extensively analysed with the alanine scanning approach to check the relevance of each residue for the biological activity of the peptide. Five of these Ala-substituted analogs have also been spectroscopically studied. In the experimental conditions used, different extents of helicity were found for the six peptides in a way which cannot be related to their capabilities of of binding to major histocompatibility complex (MHC) class II and inducing T-cell proliferation. Backbone flexibility around helical transient conformations seems to constitute the structural intermediate step between the structure of the corresponding sequence within the parental protein and in the MHC class II complex. A model of the latter complex, which accounts for the different biological activities of the analogs, is proposed.
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Affiliation(s)
- M Scarselli
- Biomolecular Structure Research Center and Dipartimento di Biologia Molecolare, University of Siena, Italy
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Bernini A, Spencer MP, Wong WD, Rothenberger DA, Madoff RD. Computed tomography-guided percutaneous abscess drainage in intestinal disease: factors associated with outcome. Dis Colon Rectum 1997; 40:1009-13. [PMID: 9293926 DOI: 10.1007/bf02050920] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.6] [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: 02/08/2023]
Abstract
PURPOSE This study was designed to assess the efficacy of computed tomography-guided percutaneous abscess drainage in intestinal disease. METHODS Retrospective chart review of patients who underwent percutaneous abscess drainage for complications of intestinal disease with or without surgery between 1990 and 1994. RESULTS Eighty-two patients with 111 abscesses were identified. Causes of abscess included anastomotic leaks (35 percent), postoperative complications without leak (30 percent), and diverticular disease (23 percent). Complete success (no surgery necessary) was achieved in 53 of 82 patients (65 percent). Nine patients (11 percent) who underwent interval surgery were classified as having partial successes. Twenty-six of 26 (100 percent) well-defined unilocular collections containing pus were successfully drained. Complex abscesses (loculated, poorly defined, multiple, associated with fistula, draining feces) were successfully drained in 35 of 55 patients (63 percent). Success rates varied inversely with the number of complicating factors present. Apache II scores of 15 or higher were associated with decreased success rates. CONCLUSION Percutaneous abscess drainage is a highly successful technique for treatment of patients with intra-abdominal infection related to intestinal disease. Although several factors are associated with decreased success rates and multiple complicating factors combine to reduce success rates, no identifiable factor or combination of factors preclude the possibility of a successful outcome.
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Affiliation(s)
- A Bernini
- Department of Surgery, University of Minnesota Medical School, Minneapolis, USA
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D'Amicis A, Scaccini C, Tomassi G, Anaclerio M, Stornelli R, Bernini A. Italian style brewed coffee: effect on serum cholesterol in young men. Int J Epidemiol 1996; 25:513-20. [PMID: 8671551 DOI: 10.1093/ije/25.3.513] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Increases in blood lipids have been observed in humans when coffee is brewed by the boiling method. The purpose of this study was to evaluate if giving up Italian coffee might reduce blood cholesterol levels. METHODS Eighty-four normolipidaemic young adult males, after a 3-week baseline (BL), were randomly assigned to three different regimens of coffee consumption: espresso (E), mocha (M), and no coffee, but tea (T). The average coffee consumption during intervention (I) was 3.1 +/- 1.2 and 2.8 +/- 1.1 cups per day for espresso and mocha group respectively (espresso: 25-35 ml/cup; mocha: 40-50 ml/cup). Total cholesterol, HDL-cholesterol, LDL-cholesterol and triglycerides were measured eight times during the study. Dietary pattern, alcohol consumption, smoking habits, drug use, and anthropometric data were also recorded. RESULTS The changes observed in serum cholesterol concentration between baseline and intervention were not statistically different in all groups. The changes were 0.0 mmol/l (T), +0.01 mmol/l (E) and +0.05 mmol/l (M) for total serum cholesterol; 0 mmol/l (T), -0.02 mmol/l (E) and -0. 03 mmol/l (M) for HDL-C; -0.13 mmol/l (T), +0.02 mmol/l (E) and -0. 05 mmol/l (M) for LDL-C. Serum triglycerides showed a significant increase during intervention (P < 0.01 by ANOVA) in all groups with a change of 0.18 mmol/l, 0.18 mmol/l and 0.22 mmol/l, for tea, espresso and mocha group respectively. CONCLUSIONS The results indicate that coffee brewed in the Italian way does not alter blood levels of total cholesterol, HDL-cholesterol and LDL-cholesterol, since no significant differences were observed in these blood parameters after a 6-week break from coffee consumption.
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Affiliation(s)
- A D'Amicis
- National Institute of Nutrition, via Ardeatina 546, 00178 Rome, Italy
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Bernini A, Deen KI, Madoff RD, Wong WD. Preoperative adjuvant radiation with chemotherapy for rectal cancer: its impact on stage of disease and the role of endorectal ultrasound. Ann Surg Oncol 1996; 3:131-5. [PMID: 8646512 DOI: 10.1007/bf02305791] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Preoperative adjuvant radiation combined with chemotherapy is a recent development in the management of patients with rectal cancer invading perirectal tissue and regional lymph nodes. This study was performed to assess the impact of preoperative adjuvant therapy in patients judged by endorectal ultrasound to have extramural invasion of rectal cancer and/or regional lymph node involvement on tumor regression in bowel wall and lymph nodes. The predictive value of ultrasound in staging wall penetration and lymph node involvement after preoperative adjuvant therapy was also assessed. METHODS Patients (n = 43) were selected by ultrasound to have preoperative irradiation (4,500-5,040 cGy over 5-6 weeks). In 30 patients this was combined with 5-fluorouracil, 370 mg/m(2), for 5 days in the first and last weeks of irradiation. Pretreatment ultrasound was compared with pathologic findings in the resected specimen in all patients. Twenty-one were assessed by ultrasound after adjuvant therapy and findings compared with histology. RESULTS Downstaging was seen in 23 (53%) patients with wall invasion and in 23 (72%) of 32 patients with lymph node involvement. Overall, downstaging was achieved in 30 (70%). Positive predictive values of ultrasound after irradiation were 72% and 56% for wall penetration and lymph node status, respectively. Negative predictive values of ultrasound after irradiation were 100% and 82%, respectively. CONCLUSION In the majority of patients with rectal cancer invading perirectal tissues or lymph nodes, lesions may be downstaged by preoperative adjuvant therapy. Endorectal ultrasound after adjuvant therapy for rectal cancer is of a lesser predictive value chiefly because of overstaging.
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Affiliation(s)
- A Bernini
- Department of Surgery, University of Minnesota Medical School, Minneapolis, USA
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Piloni V, Pieri L, Pomerri F, Pittarello F, Salvetti M, Leo E, Brusori S, Bassi F, Rottoli ML, Pucciani F, Lazzini S, Minotto R, Postiglione C, Sacco P, Bernini A, Menchinelli S, Pescatori M, Marmorale C, Frascio M, Pitto G, Grassi R, Genovesi N, Basile M, Anselmetti G, Amadio L. [The 3rd national workshop on defecography: the functional radiology of (neo) rectal ampullae (ileal reservoir, colo-anal anastomosis, continent perineal colostomy)]. Radiol Med 1996; 91:66-72. [PMID: 8614735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
A survey was made in 13 Italian centers with a questionnaire concerning the (a) indications, (b) postoperative complications, (c) functional results and (d) diagnostic imaging modalities related to the making of an ileal or colonic (neo) rectum. Ulcerative colitis (100%), familial polyposis (61.5%) and Crohn's disease (15.3%) were the most common indications for an ileal pouch; rectal cancer (7.96%), chronic inflammatory diseases (15.3%), diverticulosis, rectal prolapse, redundant colon and imperforate anus (7.6% each) were the most common indications for a colonic pouch. Postoperative complications included pelvic abscess (14%), sinus tract/dehiscence (10%) and bowel obstruction (9%). When compared with the S and W variants, the J-shaped ileoanal pouch proved superior because urgency and fecal retention rates were lower (18.4% vs. 44.4% and 23% vs. 28.6%, p < 0.01 and p < 0.05, respectively), despite slightly more frequent staining episodes (15.8% vs. 11.1%; p < 0.05). As for colonic ampullae, fecal retention and provoked evacuation were more frequent in the J pouch and after gracileplasty; urgency and incontinence in the straight colo-anal anastomosis (33.3% vs. 22.2% and 41.6% vs. 33.3%, respectively). The functional outcome was assessed by anal endosonography (available in 4/13 centers), defecography and anorectal manometry. Abnormal findings included: (a) reduced capacity, barium leakage, anal gaping, sphincter damage (urgency and incontinence); (b) barium retention, pouch dilatation, split evacuation, knobs and strictures (fecal retention).
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Civitelli S, Galgani P, Pacchiarotti MC, Civitelli B, Marini M, Pedani M, Bernini A, Tanzini G. [Blood gastrin and colorectal neoplasms]. G Chir 1994; 15:219-22. [PMID: 7946978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Gastrin has a trophic effect on the mucosa of the gastrointestinal tract and seems to have the potential for promoting colonic cancerogenesis through a chronic stimulation of the epithelial proliferation. Plasma gastrin has been reported to be elevated in patients with colorectal neoplasms. The aim of the present study was to verify this observation. Presurgical serum levels of gastrin were compared between 49 patients with colorectal neoplasms and 47 controls hospitalized for other surgical lesions. Results show significantly higher gastrin levels of case group than controls: 72.72 + 85.41 vs. 46.79 + 24.09 pg/ml (p < 0.05), and provide support for the hypothesis of a gastrin-stimulated neoplastic growth enhancing at the same time the potential therapeutic role of reducing gastrin secretion.
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Affiliation(s)
- S Civitelli
- Istituto di Clinica Chirurgica, Università degli Studi di Siena
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Braga PC, Dal Sasso M, Bernini A, Bartucci F, Pollo A, Carbone E. Antinociceptive activity of salmon calcitonin: electrophysiological correlates in a rat chronic pain model. Neurosci Lett 1993; 151:85-8. [PMID: 8469441 DOI: 10.1016/0304-3940(93)90052-m] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Experimental and clinical evidence testifies to an antinociceptive action of salmon calcitonin (sCT), administered in different ways, on the central nervous system. These studies were performed almost exclusively in acute pain models. The purpose of the present study was to investigate the effects of sCT, injected directly into the lateral cerebral ventriculi, on the firing of single nociceptive thalamic neurons, detected by electrophysiological techniques in an experimental model of prolonged or chronic pain, such as rats rendered arthritic by injection of Freund's adjuvant into the left hindfoot. The noxious test stimuli used were either extension or flexion of the ankle or mild lateral pressure on the heel. With increasing doses of sCT (5, 10, 20, 40 micrograms, 5 microliters/i.c.v.) it was possible to observe correspondingly increasing inhibitory and long-lasting effects on the evoked firing, with a significant dose-effect relationship. In agreement with electrophysiological findings, preliminary data, obtained with a patch clamp technique, on depression of calcium fluxes through neuronal membrane, induced by sCT, oriented the attention to a direct action of sCT on CNS.
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Affiliation(s)
- P C Braga
- Department of Pharmacology, School of Medicine, University of Milan, Italy
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Albera R, Morra B, Lucisano S, Bernini A, Lacilla M. Dynamic Aspects of Stapedial Reflex in Myasthenia gravis: Aspects dynamiques du réflexe stapédien dans la myasthénie grave. Int J Audiol 1987. [DOI: 10.3109/00206098709078418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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