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Alharthi FA, Al-Zaqri N, Alsalme A, Al-Taleb A, Pooventhiran T, Thomas R, Rao DJ. Excited-state electronic properties, structural studies, noncovalent interactions, and inhibition of the novel severe acute respiratory syndrome coronavirus 2 proteins in Ripretinib by first-principle simulations. J Mol Liq 2021; 324:115134. [PMID: 33390634 PMCID: PMC7765765 DOI: 10.1016/j.molliq.2020.115134] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/16/2020] [Accepted: 12/18/2020] [Indexed: 12/02/2022]
Abstract
Ripretinib is a recently developed drug for the treatment of adults with advanced gastrointestinal stromal tumors. This paper reports an attempt to study this molecule by electronic modeling and molecular mechanics to determine its composition and other specific chemical features via the density-functional theory (DFT), thereby affording sufficient information on the electronic properties and descriptors that can enable the estimation of its molecular bioactivity. We explored most of the physico-chemical properties of the molecule, as well as its stabilization, via the studies of the natural bond orbitals and noncovalent interactions. The electronic excitation, which is a time-dependent process, was examined by the time-dependent DFT with a CAM-B3LYP functional. The molecular docking study indicated that Ripretinib strongly docks with three known novel severe acute respiratory syndrome coronavirus 2 (SARS-n-CoV-2) proteins with a reasonably good docking score.
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Affiliation(s)
- Fahad A Alharthi
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Nabil Al-Zaqri
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Ali Alsalme
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Afnan Al-Taleb
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia
| | - T Pooventhiran
- Department of Chemistry, St. Berchmans College (Autonomous), Changanassery, Kerala, India
| | - Renjith Thomas
- Department of Chemistry, St. Berchmans College (Autonomous), Changanassery, Kerala, India
| | - D Jagadeeswara Rao
- Department of Physics, Dr. Lankapalli Bullayya College, Visakhapatnam, Andhra Pradesh, India
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Schöffel N, Groneberg DA, Kaul T, Laatsch D, Thielemann H. [Gastrointestinal stromal tumors (GIST)--literature review]. MMW Fortschr Med 2016; 158:60-62. [PMID: 27119704 DOI: 10.1007/s15006-016-7824-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- Norman Schöffel
- Klinik für Allgemein- und Viszeralchirurgie Unfallkrankenhaus Berlin, Warener Str. 7, D-12683, Berlin, Deutschland.
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Laparoscopic resection of locally advanced gastrointestinal stromal tumour (GIST) of the stomach following neoadjuvant imatinib chemoreduction. Int J Surg Case Rep 2015; 8C:103-6. [PMID: 25651537 PMCID: PMC4353961 DOI: 10.1016/j.ijscr.2015.01.045] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 01/27/2015] [Accepted: 01/27/2015] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION Laparoscopic resection of locally advanced gastrointestinal stromal tumours (GISTs) is rarely offered to patients as a first line of treatment. PRESENTATION OF CASES We present two cases of locally advanced gastric GISTs successfully treated with neoadjuvant imatinib and followed up by complete laparoscopic excision of the residual tumour mass. There was no evidence of local recurrence or distant metastases after a mean follow up of more than 40 months. DISCUSSION Over the last decade, the development of imatinib has totally revolutionized management of metastatic GISTs and it is now possible to achieve primary tumour downstaging of more than 80%. Unfortunately, current literature on laparoscopic excision of locally advanced gastric GISTs following neoadjuvant treatment of imatinib remains scarce. The present cases strongly suggest that this new therapeutic approach might become the preferred medical option in such clinical situation. CONCLUSION Patients with locally advanced non-metastatic gastric GISTs should be offered first-line neoadjuvant. Imatinib-based cytoreductive chemotherapy as an alternative to radical debulking surgery, as a substantial proportion of them will experience significant tumour shrinkage and therefore benefit from a much less invasive laparoscopic approach.
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Schwameis K, Fochtmann A, Schwameis M, Asari R, Schur S, Köstler W, Birner P, Ba-Ssalamah A, Zacherl J, Wrba F, Brodowicz T, Schoppmann SF. Surgical treatment of GIST--an institutional experience of a high-volume center. Int J Surg 2013; 11:801-6. [PMID: 23999064 DOI: 10.1016/j.ijsu.2013.08.016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Revised: 07/26/2013] [Accepted: 08/22/2013] [Indexed: 12/13/2022]
Abstract
BACKGROUND Discovery of the molecular pathogenesis of Gastrointestinal stromal tumors led to the development of targeted therapies, revolutionizing their treatment. However, surgery is still the mainstay of GIST therapy and the only chance for cure. AIM Here we present a single institutional consecutive case series of 159 GIST-patients. METHODS AND PATIENTS A total of 159 GIST-patients who underwent resection between 1994 and 2011 were reviewed for clinicopathohistological data, informations on surgical and medical therapy and further follow-up, outcome and survival data. RESULTS Laparoscopic (25.2%) and open (71.1%) GIST surgery achieved complete resection rates of 97.5% and 85.2%, whereas 44.4% of incomplete and 6.6% of complete resected patients died from GIST. Compared to open surgery laparoscopy significantly reduced duration of operation (183.4 vs. 130.6 min), length of hospitalization (16.1 vs. 8.3 d) and morbidity (23% vs. 7.5%). Mean survival time was 3.7 ± 2.7 years (R0: 5.1 a and R1: 2.6 a) and the mean overall survival was 4.5 ± 3.8 years. CONCLUSION Complete surgical resection is the primary goal and laparoscopy can be performed safely in a subset of GIST-patients with potential perioperative advantages. Although not proven by the present study the authors assume that multimodal GIST-treatment, as performed in reference-centers, is required for advanced or high risk disease. Our data suggest the potential for minimally invasive GIST resection to achieving comparable oncological outcomes as after open surgery while providing low morbidity rates.
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Affiliation(s)
- Katrin Schwameis
- Department of Surgery, Medical University of Vienna, Austria; Comprehensive Cancer Center Vienna, Austria.
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Benesch M, Wardelmann E, Leuschner I, Koscielniak E. Gastrointestinale Stromatumoren im Kindes- und Jugendalter. Monatsschr Kinderheilkd 2012. [DOI: 10.1007/s00112-012-2692-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cai W, Wang ZT, Wu L, Zhong J, Zheng MH. Laparoscopically assisted resections of small bowel stromal tumors are safe and effective. J Dig Dis 2011; 12:443-7. [PMID: 22118693 DOI: 10.1111/j.1751-2980.2011.00536.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To compare the efficacy of laparoscopically assisted and open resections in treatment of small bowel stromal tumors (SBST). METHODS A retrospective study of 85 patients who underwent curative resections for SBST (38 by laparoscopically assisted procedures and 47 by open procedures) was performed. RESULTS There were no differences between open and laparoscopically assisted approaches in terms of patients' age, gender, presenting symptoms, histological risk or extent of resection (P > 0.05). The median tumor size for laparoscopically assisted resections was 4.0 cm (range 1.2-7.0 cm), which was the same as that for the open resections (range 2.0-10.0 cm). There were fewer complications in the laparoscopic group than those in the open resection group (7.9% vs 17.0%), but no significant difference was observed (P > 0.05). The 2-year survival of the two patient groups was almost the same (86.8% vs 89.4%). Laparoscopically assisted procedures required on average 22.5 min less of operating time (87.5 min vs 110.0 min, P = 0.006), 1.0 day less of bowel recovery time (3.0 days vs 4.0 days, P = 0.001) and 5.0 days less in hospital stay (8.0 days vs 13.0 days, P < 0.001). CONCLUSION Laparoscopically assisted resection of SBST is a safe alternative to open resection.
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Affiliation(s)
- Wei Cai
- Department of General Surgery, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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Sákra L, Šiller J, Vyhnálek P, Hácová M. Surgical treatment of gastric and small bowel gastrointestinal stromal tumours. Wideochir Inne Tech Maloinwazyjne 2011; 6:138-43. [PMID: 23255972 PMCID: PMC3516937 DOI: 10.5114/wiitm.2011.24691] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Revised: 05/15/2011] [Accepted: 05/28/2011] [Indexed: 01/28/2023] Open
Abstract
AIM This study aimed to evaluate a set of gastrointestinal stromal tumours (GIST) of the stomach and the small bowel managed with a laparoscopic technique. MATERIAL AND METHODS The study covers a period from January 1, 2007 until June 1, 2010 during which 13 patients underwent the laparoscopic removal of stomach tumours and 2 patients underwent the removal of a small bowel GIST in the General Hospital in Pardubice. In all cases tumours were removed in a laparoscopic way, including the healthy border of the stomach tissue. RESULTS No death was observed in our study. Two patients suffered from wound infection (secondary healing), one of them requiring repeat surgery owing to the excessive narrowing of the distal part of the stomach. Dehiscence of laparoscopic sutures or other intra-abdominal complications were not observed. During monitoring all patients were free of signs of local recurrence, but tumour progression into the liver was observed in 1 patient. Gastrointestinal stromal tumours are very rare tumours but their incidence is increasing. At this time the consensus about the necessity of preoperative unambiguous differentiation between malignant or less malignant variants is not available. Strict differentiation is very difficult and the decision whether to choose a more radical surgical approach for more malignant variants is not clear-cut. CONCLUSIONS In cases of gastric and small bowel GISTs the local removal of a tumour with the healthy border of the stomach tissue may be chosen as an adequate approach. Our results support this local surgical approach.
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Affiliation(s)
- Lukáš Sákra
- Faculty of Health Studies, University of Pardubice, Czech Republic
- Surgical Department, General Hospital, Pardubice, Czech Republic
| | - Jiří Šiller
- Faculty of Health Studies, University of Pardubice, Czech Republic
- Surgical Department, General Hospital, Pardubice, Czech Republic
| | - Petr Vyhnálek
- Internal Medicine Department, General Hospital, Pardubice, Czech Republic
| | - Marie Hácová
- Pathological Department, General Hospital, Pardubice, Czech Republic
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Dorn J, Spatz H, Schmieder M, Barth TF, Blatz A, Henne-Bruns D, Knippschild U, Kramer K. Cyclin H expression is increased in GIST with very-high risk of malignancy. BMC Cancer 2010; 10:350. [PMID: 20598140 PMCID: PMC2916921 DOI: 10.1186/1471-2407-10-350] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2010] [Accepted: 07/02/2010] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Risk estimation of gastrointestinal stromal tumours (GIST) is based on tumour size and mitotic rate according to the National Institutes of Health consensus classification. The indication for adjuvant treatment of patients with high risk GIST after R0 resection with small molecule inhibitors is still a controversial issue, since these patients represent a highly heterogeneous population. Therefore, additional prognostic indicators are needed. Here, we evaluated the prognostic value of cyclin H expression in GIST. METHODS In order to identify prognostic factors of GIST we evaluated a single centre cohort of ninety-five GIST patients. First, GISTs were classified with regard to tumour size, mitotic rate and localisation according to the NIH consensus and to three additional suggested risk classifications. Second, Cyclin H expression was analysed. RESULTS Of ninety-five patients with GIST (53 female/42 male; median age: 66.78a; range 17-94a) risk classification revealed: 42% high risk, 20% intermediate risk, 23% low risk and 15% very low risk GIST. In patients with high risk GIST, the expression of cyclin H was highly predictive for reduced disease-specific survival (p = 0.038). A combination of cyclin H expression level and high risk classification yielded the strongest prognostic indicator for disease-specific and disease-free survival (p < or = 0.001). Moreover, in patients with tumour recurrence and/or metastases, cyclin H positivity was significantly associated with reduced disease-specific survival (p = 0.016) regardless of risk-classification. CONCLUSION Our data suggest that, in addition to high risk classification, cyclin H expression might be an indicator for "very-high risk" GIST.
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Affiliation(s)
- Julian Dorn
- Clinic of General-, Visceral- and Transplantation-Surgery, University Hospital Ulm, Ulm, Germany.
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Schimmack S, Büchler MW, Weitz J. [Surgical therapy of abdominal and trunk soft tissue sarcomas]. Chirurg 2009; 80:202-8. [PMID: 19221701 DOI: 10.1007/s00104-008-1596-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Soft tissue sarcomas are rare tumours of mesenchymal cells which can arise in all parts of the body. Sarcomas of the trunk and abdominal cavity are a very heterogeneous group of tumours. This review focuses on retroperitoneal sarcomas, which tend to be asymptomatic for a long time, resulting in an advanced stage at presentation in most patients. Surgical resection is the basis for cure in these patients, possibly combined with radiation. In contrast to extremity sarcomas, the majority of patients with retroperitoneal sarcomas succumb to an isolated local recurrence of the disease. In case of local recurrence or distant metastases, surgical resection should again be contemplated.
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Affiliation(s)
- S Schimmack
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie, Universitätsklinikum Heidelberg, Im Neuenheimer Feld 110, Heidelberg, Germany
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Bareck E, Längle F, Zacherl J. [Surgical treatment of gastrointestinal stromal tumors]. Wien Med Wochenschr 2009; 159:393-8. [PMID: 19696983 DOI: 10.1007/s10354-009-0691-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2009] [Accepted: 07/20/2009] [Indexed: 12/21/2022]
Abstract
Interdisciplinary management is required in the therapy of gastrointestinal stromal tumors, in consideration of complex strategies in the treatment of patients with GIST. Endoscopy, histopathology - mutation analysis included - but also radio diagnostic, surgery and oncology are topics in treating patients suffering from GIST. Especially in cases of advanced gastrointestinal stromal tumor or metastatic disease our multidisciplinary knowledge is required, because information about these entities are rather rare.
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Affiliation(s)
- Evelyne Bareck
- Abteilung für Chirurgie, Landesklinikum Wiener Neustadt, Austria.
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Metzger P, Teleky B. [Oncologic surgery of the intestines]. Magy Seb 2009; 62:233-242. [PMID: 19679533 DOI: 10.1556/maseb.62.2009.4.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Affiliation(s)
- Péter Metzger
- Donauspital-SMZ Ost, Sebészeti és Orvostudományi Egyetem Sebészeti Klinika Bécs
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