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Wang W, Fu Y, Xu J, Gao X, Fu X, Wang L. Optimization of hydrolysis conditions of alginate based on high performance liquid chromatography. Heliyon 2024; 10:e29738. [PMID: 38699043 PMCID: PMC11064077 DOI: 10.1016/j.heliyon.2024.e29738] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 04/08/2024] [Accepted: 04/15/2024] [Indexed: 05/05/2024] Open
Abstract
Alginate is the most abundant polysaccharide compound in brown algae, which is widely used in various fields. At present, the determination of the content of alginate is mostly carried out using sulfuric acid and trifluoroacetic acid hydrolysis followed by the determination of the content, but the results are not satisfactory, and there are problems such as low hydrolysis degree and low recovery rate. Therefore, in this study, based on the optimization of high performance liquid chromatographic conditions for pre-column derivatization of 1-phenyl-3-methyl-5-pyrazolone (PMP), the hydrolysis effects of sulfuric acid, trifluoroacetic acid (TFA), oxalic acid, and formic acid were compared and the hydrolysis conditions were optimized. The results showed that formic acid was the best hydrolyzing acid. The optimal hydrolysis conditions were 95 % formic acid at 110 °C for 10 h. The hydrolysis effect was stable, with high recovery and low destruction of monosaccharides, which made it possible to introduce formic acid into the subsequent polysaccharide hydrolysis. The pre-column derivatization high performance liquid chromatography method established in this study was accurate and reliable, and the hydrolysis acid with better effect was screened, which provided a theoretical basis for the subsequent determination of alginate content.
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Affiliation(s)
| | | | - Jiachao Xu
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China
| | - Xin Gao
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China
| | - Xiaoting Fu
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China
| | - Lei Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, 266003, Shandong, China
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Hideshima Y, Asami T, Ichiba M, Matsuo K, Murata T. A study on the effectiveness of training in the operation of an electric mobility aid in severely mentally and physically handicapped children. Jpn J Compr Rehabil Sci 2024; 15:8-16. [PMID: 38585159 PMCID: PMC10990755 DOI: 10.11336/jjcrs.15.8] [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] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 01/25/2024] [Indexed: 04/09/2024]
Abstract
Hideshima Y, Asami T, Ichiba M, Matsuo K, Murata T. A study on the effectiveness of training in the operation of an electric mobility aid in severely mentally and physically handicapped children. Jpn J Compr Rehabil Sci 2024; 15: 8-16. Purpose We examined whether operation training for children with severe mental and physical disabilities using recently developed electric mobility aids improves their skills in operating such aids and their daily activities. By doing so, we aimed to clarify the effectiveness of electric mobility aid operation training for children with severe mental and physical disabilities. Method Operation training and normal training using an electric mobility aid were conducted for 42 school-aged children with severe mental and physical disabilities, aged 8-18 years old. The trainee children were randomly assigned to two groups: 21 to the intervention group to receive operation training and 21 to the control group to receive general training. The intervention lasted 20 minutes/training session, with three sessions/week over a period of eight weeks. The Powered Mobility Program (PMP) and Pediatric Evaluation of Disability Inventory (PEDI) were used for pre- and post-intervention assessments, and SPSS was used for two-way analysis of variance (ANOVA). Results PMP scaled scores significantly increased (p = 0.001) in both groups, but there was no interaction effect. The PEDI scaled scores did not significantly increase in either of the two groups. Discussion The effects of the intervention and use of the electric mobility aid on the operating skills of children with severe mental and physical disabilities were explicitly demonstrated. Future long-term studies are required to clarify the effects of training in the operation of electric mobility aids on the subsequent development of severely physically and mentally handicapped children.
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Affiliation(s)
- Yoshikazu Hideshima
- General School of Medical Science Course Medical School Faculty of Medicine, Saga University, Saga, Japan
| | - Toyoko Asami
- Department of Rehabilitation Medicine, Saga University Hospital, Saga, Japan
| | - Masayoshi Ichiba
- Department of Social Medicine, Saga University School of Medicine, Saga, Japan
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Cruz-Rubio JM, Loeppert R, Praznik W. Monosaccharide Analysis After One-Pot Derivatization Followed by Reverse-Phase Liquid Chromatography Separation and UV/Vis Detection. Methods Mol Biol 2024; 2788:67-79. [PMID: 38656509 DOI: 10.1007/978-1-0716-3782-1_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Derivatization of monosaccharides with 1-phenyl-3-methyl-5-pyrazolone (PMP) introduces two chromophores per sugar molecule. Their separation on a superficially porous C18 reverse-phase column, using common liquid chromatography equipment, results in short analysis times (under 20 min) and high sensitivity (limit of quantitation 1 nmol). This method allows for complex monosaccharide mixtures to be separated and quantified using a reasonably simple and safe derivatization procedure.
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Affiliation(s)
- José Manuel Cruz-Rubio
- Plant Functional Genomics Lab, Institute of Molecular Biotechnology, Department of Biotechnology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
| | - Renate Loeppert
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, Vienna, Austria
| | - Werner Praznik
- Department of Pharmaceutical Sciences, Division of Pharmaceutical Technology and Biopharmaceutics, University of Vienna, Vienna, Austria
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Yang R, Zhao X, Fu YB, Lin YL, Ma R, Su YD, Wu HL, Liang XL, Li Y. Etiological analysis of infection after CRS + HIPEC in patients with PMP. BMC Cancer 2023; 23:903. [PMID: 37752468 PMCID: PMC10521434 DOI: 10.1186/s12885-023-11404-1] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 09/14/2023] [Indexed: 09/28/2023] Open
Abstract
BACKGROUND Cytoreductive surgery (CRS) plus hyperthermic intraperitoneal chemotherapy (HIPEC) is the standard treatment for pseudomyxoma peritonei (PMP). It can significantly prolong the survival of patients, but at the same time may increase the risk of postoperative infection. METHOD Patients with PMP who underwent CRS + HIPEC at our center were retrospectively analyzed. According to PMP patients, basic clinical data and relevant information of postoperative infection, we analyzed the common sites of postoperative infection, results of microbial culture and the antibiotics sensitivity. Univariate and multivariate analysis were performed to explore infection-related risk factors. RESULT Among the 482 patients with PMP, 82 (17.0%) patients were infected after CRS + HIPEC. The most common postoperative infection was central venous catheter (CVC) infection (8.1%), followed by abdominal-pelvic infection (5.2%). There were 29 kinds of microbes isolated from the culture (the most common was Staphylococcus epidermidis), including 13 kinds of Gram-positive bacteria, 12 kinds of Gram-negative bacteria, and 4 kinds of funguses. All the antibiotics sensitivity results showed that the most sensitive antibiotics were vancomycin to Gram-positive bacteria (98.4%), levofloxacin to Gram-negative bacteria (68.5%), and fluconazole to fungus (83.3%). Univariate and multivariate analysis revealed the infection independent risk factors as follow: intraoperative blood loss ≥ 350 mL (P = 0.019), ascites volume ≥ 300 mL (P = 0.008). CONCLUSION PMP patients may have increased infection risk after CRS + HIPEC, especially CVC, abdominal-pelvic and pulmonary infections. The microbial spectrum and antibiotics sensitivity results could help clinicians to take prompt prophylactic and therapeutic approaches against postoperative infection for PMP patients.
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Affiliation(s)
- Rui Yang
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Haidian District, No. 10 Tieyi Road, Yangfangdian Street, Beijing, 100038, China
| | - Xin Zhao
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Peking University Ninth School of Clinical Medicine, Beijing, 100038, China
| | - Yu-Bin Fu
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Haidian District, No. 10 Tieyi Road, Yangfangdian Street, Beijing, 100038, China
| | - Yu-Lin Lin
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Haidian District, No. 10 Tieyi Road, Yangfangdian Street, Beijing, 100038, China
| | - Ru Ma
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Haidian District, No. 10 Tieyi Road, Yangfangdian Street, Beijing, 100038, China
| | - Yan-Dong Su
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Haidian District, No. 10 Tieyi Road, Yangfangdian Street, Beijing, 100038, China
| | - He-Liang Wu
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Haidian District, No. 10 Tieyi Road, Yangfangdian Street, Beijing, 100038, China
| | - Xin-Li Liang
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Haidian District, No. 10 Tieyi Road, Yangfangdian Street, Beijing, 100038, China
| | - Yan Li
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Haidian District, No. 10 Tieyi Road, Yangfangdian Street, Beijing, 100038, China.
- Department of Surgical Oncology, Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing, 102218, China.
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Krishna CK, Schmidt N, Tippler BG, Schliebs W, Jung M, Winklhofer KF, Erdmann R, Kalel VC. Molecular basis of the glycosomal targeting of PEX11 and its mislocalization to mitochondrion in trypanosomes. Front Cell Dev Biol 2023; 11:1213761. [PMID: 37664461 PMCID: PMC10469627 DOI: 10.3389/fcell.2023.1213761] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 08/03/2023] [Indexed: 09/05/2023] Open
Abstract
PEX19 binding sites are essential parts of the targeting signals of peroxisomal membrane proteins (mPTS). In this study, we characterized PEX19 binding sites of PEX11, the most abundant peroxisomal and glycosomal membrane protein from Trypanosoma brucei and Saccharomyces cerevisiae. TbPEX11 contains two PEX19 binding sites, one close to the N-terminus (BS1) and a second in proximity to the first transmembrane domain (BS2). The N-terminal BS1 is highly conserved across different organisms and is required for maintenance of the steady-state concentration and efficient targeting to peroxisomes and glycosomes in both baker's yeast and Trypanosoma brucei. The second PEX19 binding site in TbPEX11 is essential for its glycosomal localization. Deletion or mutations of the PEX19 binding sites in TbPEX11 or ScPEX11 results in mislocalization of the proteins to mitochondria. Bioinformatic analysis indicates that the N-terminal region of TbPEX11 contains an amphiphilic helix and several putative TOM20 recognition motifs. We show that the extreme N-terminal region of TbPEX11 contains a cryptic N-terminal signal that directs PEX11 to the mitochondrion if its glycosomal transport is blocked.
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Affiliation(s)
- Chethan K. Krishna
- Department of Systems Biochemistry, Institute for Biochemistry and Pathobiochemistry, Faculty of Medicine, Ruhr University Bochum, Bochum, Germany
| | - Nadine Schmidt
- Department of Systems Biochemistry, Institute for Biochemistry and Pathobiochemistry, Faculty of Medicine, Ruhr University Bochum, Bochum, Germany
| | - Bettina G. Tippler
- Department of Systems Biochemistry, Institute for Biochemistry and Pathobiochemistry, Faculty of Medicine, Ruhr University Bochum, Bochum, Germany
| | - Wolfgang Schliebs
- Department of Systems Biochemistry, Institute for Biochemistry and Pathobiochemistry, Faculty of Medicine, Ruhr University Bochum, Bochum, Germany
| | - Martin Jung
- Department of Medical Biochemistry and Molecular Biology, Saarland University, Homburg, Germany
| | - Konstanze F. Winklhofer
- Department Molecular Cell Biology, Institute of Biochemistry and Pathobiochemistry, Faculty of Medicine, Ruhr University Bochum, Bochum, Germany
| | - Ralf Erdmann
- Department of Systems Biochemistry, Institute for Biochemistry and Pathobiochemistry, Faculty of Medicine, Ruhr University Bochum, Bochum, Germany
| | - Vishal C. Kalel
- Department of Systems Biochemistry, Institute for Biochemistry and Pathobiochemistry, Faculty of Medicine, Ruhr University Bochum, Bochum, Germany
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Geisel D, Langen U, Rüdiger T. Oral administration of bromelain and acetylcysteine in pseudomyxoma peritonei ( PMP) caused by low-grade appendiceal mucinous neoplasm (LAMN): a case report. J Med Case Rep 2023; 17:297. [PMID: 37381056 DOI: 10.1186/s13256-023-04024-7] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 05/21/2023] [Indexed: 06/30/2023] Open
Abstract
BACKGROUND Pseudomyxoma Peritonei (PMP) is a severe neoplastic clinical syndrome characterised by secretion of mucin from tumors often originating in the appendix. The standard treatment includes cytoreductive surgery (CRS) combined with heated intraperitoneal chemotherapy (HIPEC). A new perspective in PMP treatment aims at the mucins themselves as a therapeutic target. CASE PRESENTATION Here we report the first case of PMP with peritoneal dissemination of mucinous implants caused by low-grade appendiceal mucinous neoplasm (LAMN) in a 58-year-old white male exclusively treated by appendectomy and oral administration of bromelain and acetylcysteine in the context of a medical self-experimentation (by co-author T.R.). Observation so far covers a period of 48 months including regular magnetic resonance imaging (MRI) with stable findings. CONCLUSIONS Oral administration of bromelain and acetylcysteine can be used in the treatment of PMP caused by LAMN without relevant clinical side effects.
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Affiliation(s)
- Dominik Geisel
- Department of Radiology, Charité, Universitätsmedizin Berlin, Campus Virchow-Klinikum, Klinik Für Radiologie, Augustenburger Platz 1, 13353, Berlin, Germany.
| | - Ute Langen
- Department of Radiology, Charité, Universitätsmedizin Berlin, Campus Virchow-Klinikum, Klinik Für Radiologie, Augustenburger Platz 1, 13353, Berlin, Germany
| | - Thomas Rüdiger
- Department of Radiology, Charité, Universitätsmedizin Berlin, Campus Virchow-Klinikum, Klinik Für Radiologie, Augustenburger Platz 1, 13353, Berlin, Germany
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Shadnoush M, Latifi M, Rahban H, Pourhosein E, Shadnoush A, Jafarian A, Dehghani S. Trends in organ donation and transplantation over the past eighteen years in Iran. Clin Transplant 2023; 37:e14889. [PMID: 36545788 DOI: 10.1111/ctr.14889] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 12/06/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND This article will review the trends in organ donation over the past 18 years in Iran. MATERIAL AND METHODS All donation and transplantation statistics were extracted by reviewing the Organ Procurement and Transplantation database of the Ministry of Health of Iran from 2002 to 2019. RESULTS Iran's national deceased donation rate from 2002 to 2019 increased 19.06-fold from .75 to 14.3 per million population (PMP). After the beginning of the COVID-19 pandemic, the rate of organ donation in Iran decreased significantly. Although 1 year after the onset of the pandemic, due to the widespread adoption of COVID19 vaccination, the rate of organ donation began to increase again, this system is still under performing. During the years under examination, the rate of deceased kidney donation increased significantly compared to living kidney donation and reached up to 2001 kidney transplantations in 2021. From 2002 to 2019, the rate of liver transplants increased to 12.8. Likewise, the rate of heart transplants increased 8.4-fold, from 15 to 126 cases during the same time. CONCLUSSION Although a personal choice, the process of organ donation involves medical, legal, ethical, organizational, and social aspects. The trend in increasing donation rates over the past years can be attributed to multiple influences, which include rigorous team efforts in the organ donation and transplantation systems, in addition to creating a donation culture and promoting donation through media platforms. Moreover, we can say that the rising rates of deceased donor transplantation also can drive down rates of commercial living donor transplantation.
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Affiliation(s)
- Mahdi Shadnoush
- Faculty of Nutrition & Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Marzieh Latifi
- Organ Procurement Unit, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Habib Rahban
- Cardiovascular Research Foundation of Southern California, Beverly Hills, California, USA.,Southern California Medical Education Consortium, Temecula Valley Hospital, Universal Health System, Temecula, California, USA
| | - Elahe Pourhosein
- Organ Procurement Unit, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Shadnoush
- University of Social Welfare and Rehabilitation Sciences, Tehran, Iran
| | - Arefeh Jafarian
- Iranian Tissue Bank & Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Sanaz Dehghani
- Organ Procurement Unit, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran.,Iranian Tissue Bank & Research Center, Tehran University of Medical Sciences, Tehran, Iran
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Vaira M, Robella M, Guaglio M, Berchialla P, Sommariva A, Valle M, Pasqual EM, Roviello F, Framarini M, Fiorentini G, Sammartino P, Ilari Civit A, Di Giorgio A, Ansaloni L, Deraco M. Diagnostic and Therapeutic Algorithm for Appendiceal Tumors and Pseudomyxoma Peritonei: A Consensus of the Peritoneal Malignancies Oncoteam of the Italian Society of Surgical Oncology (SICO). Cancers (Basel) 2023; 15:cancers15030728. [PMID: 36765686 PMCID: PMC9913318 DOI: 10.3390/cancers15030728] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/28/2022] [Accepted: 12/07/2022] [Indexed: 01/26/2023] Open
Abstract
Aim: Pseudomyxoma peritonei (PMP) is an uncommon pathology, and its rarity causes a lack of scientific evidence, precluding the design of a prospective trial. A diagnostic and therapeutic algorithm (DTA) is necessary in order to standardize the disease treatment while balancing optimal patient management and the correct use of resources. The Consensus of the Italian Society of Surgical Oncology (SICO) Oncoteam aims at defining a diagnostic and therapeutic pathway for PMP and appendiceal primary tumors applicable in Italian healthcare. Method: The consensus panel included 10 delegated representatives of oncological referral centers for Peritoneal Surface Malignancies (PSM) affiliated to the SICO PSM Oncoteam. A list of statements regarding the DTA of patients with PMP was prepared according to recommendations based on the review of the literature and expert opinion. Results: A consensus was obtained on 33 of the 34 statements linked to the DTA; two flowcharts regarding the management of primary appendiceal cancer and peritoneal disease were approved. Conclusion: Currently, consensus has been reached on pathological classification, preoperative evaluation, cytoreductive surgery technical detail, and systemic treatment; some controversies still exist regarding the exclusion criteria for HIPEC treatment. A shared Italian model of DTA is an essential tool to ensure the appropriateness and equity of treatment for these patients.
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Affiliation(s)
- Marco Vaira
- Unit of Surgical Oncology, Candiolo Cancer Institute, FPO—IRCCS, 10060 Candiolo, Italy
- Correspondence: authors: (M.V.); (M.R.)
| | - Manuela Robella
- Unit of Surgical Oncology, Candiolo Cancer Institute, FPO—IRCCS, 10060 Candiolo, Italy
- Correspondence: authors: (M.V.); (M.R.)
| | - Marcello Guaglio
- Peritoneal Surface Malignancies Unit, Fondazione Istituto Nazionale Tumori IRCCS Milano, 20133 Milano, Italy
| | - Paola Berchialla
- Department of Clinical and Biological Sciences, Centre for Biostatistics, Epidemiology and Public Health (C-BEPH), University of Torino, 10124 Torino, Italy
| | - Antonio Sommariva
- Advanced Surgical Oncology Unit, Surgical Oncology of the Esophagus and Digestive Tract, Veneto Institute of Oncology IOV-IRCCS, t, 35100 Padova, Italy
| | - Mario Valle
- Peritoneal Tumours Unit, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Enrico Maria Pasqual
- AOUD Center Advanced Surgical Oncology, DAME University of Udine, 33100 Udine, Italy
| | - Franco Roviello
- Unit of General Surgery and Surgical Oncology, Department of Medicine, Surgery, and Neurosciences, University of Siena, 53100 Siena, Italy
| | - Massimo Framarini
- Surgery and Advanced Oncological Therapy Unit, Ospedale “GB.Morgagni-L.Pierantoni”—AUSL Forlì, 47122 Forlì, Italy
| | - Giammaria Fiorentini
- Italian Network of International Clinical Hyperthermia Society Coordinator, 48121 Ravenna, Italy
| | - Paolo Sammartino
- CRS and HIPEC Unit, Pietro Valdoni, Umberto I Policlinico di Roma, 00161 Roma, Italy
| | - Alba Ilari Civit
- Unit of Surgical Oncology, Candiolo Cancer Institute, FPO—IRCCS, 10060 Candiolo, Italy
| | - Andrea Di Giorgio
- Surgical Unit of Peritoneum and Retroperitoneum, Fondazione Policlinico Universitario A. Gemelli—IRCCS, 00168 Rome, Italy
| | - Luca Ansaloni
- Unit of General Surgery, San Matteo Hospital, 27100 Pavia, Italy
| | - Marcello Deraco
- Peritoneal Surface Malignancies Unit, Fondazione Istituto Nazionale Tumori IRCCS Milano, 20133 Milano, Italy
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Allias Omar SM, Wan Ariffin WNH, Mohd Sidek L, Basri H, Moh Khambali MH, Ahmed AN. Hydrological Analysis of Batu Dam, Malaysia in the Urban Area: Flood and Failure Analysis Preparing for Climate Change. Int J Environ Res Public Health 2022; 19:16530. [PMID: 36554413 PMCID: PMC9778776 DOI: 10.3390/ijerph192416530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 11/03/2022] [Accepted: 11/07/2022] [Indexed: 06/17/2023]
Abstract
Extensive hydrological analysis is carried out to estimate floods for the Batu Dam, a hydropower dam located in the urban area upstream of Kuala Lumpur, Malaysia. The study demonstrates the operational state and reliability of the dam structure based on hydrologic assessment of the dam. The surrounding area is affected by heavy rainfall and climate change every year, which increases the probability of flooding and threatens a dense population downstream of the dam. This study evaluates the adequacy of dam spillways by considering the latest Probable Maximum Precipitation (PMP) and Probable Maximum Flood (PMF) values of the concerned dams. In this study, the PMP estimations are applied using comparison of both statistical method by Hershfield and National Hydraulic Research Institute of Malaysia (NAHRIM) Envelope Curve as input for PMF establishments. Since the PMF is derived from the PMP values, the highest design flood standard can be applied to any dam, ensuring inflow into the reservoirs and limiting the risk of dam structural failure. Hydrologic modeling using HEC-HMS provides PMF values for the Batu dam. Based on the results, Batu Dam is found to have 200.6 m3/s spillway discharge capacities. Under PMF conditions, the Batu dam will not face overtopping since the peak outflow of the reservoir level is still below the crest level of the dam.
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Affiliation(s)
- Siti Mariam Allias Omar
- Sustainable Technology and Environment Group, Institute of Energy Infrastructure, Universiti Tenaga Nasional (UNITEN), Kajang 43000, Malaysia
| | - Wan Noorul Hafilah Wan Ariffin
- Sustainable Technology and Environment Group, Institute of Energy Infrastructure, Universiti Tenaga Nasional (UNITEN), Kajang 43000, Malaysia
| | - Lariyah Mohd Sidek
- Sustainable Technology and Environment Group, Institute of Energy Infrastructure, Universiti Tenaga Nasional (UNITEN), Kajang 43000, Malaysia
| | - Hidayah Basri
- Sustainable Technology and Environment Group, Institute of Energy Infrastructure, Universiti Tenaga Nasional (UNITEN), Kajang 43000, Malaysia
| | | | - Ali Najah Ahmed
- Sustainable Technology and Environment Group, Institute of Energy Infrastructure, Universiti Tenaga Nasional (UNITEN), Kajang 43000, Malaysia
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Ezzeroug Ezzraimi A, Hannachi N, Mariotti A, Rolain JM, Camoin-Jau L. Platelets and Escherichia coli: A Complex Interaction. Biomedicines 2022; 10:biomedicines10071636. [PMID: 35884941 PMCID: PMC9313189 DOI: 10.3390/biomedicines10071636] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 07/02/2022] [Accepted: 07/06/2022] [Indexed: 12/26/2022] Open
Abstract
Apart from their involvement in hemostasis, platelets have been recognized for their contribution to inflammation and defense against microbial agents. The interaction between platelets and bacteria has been well studied in the model of Staphylococcus and Streptococcus but little described in Gram-negative bacteria, especially Escherichia coli. Being involved in the hemolytic uremic syndrome as well as sepsis, it is important to study the mechanisms of interaction between platelets and E. coli. Results of the published studies are heterogeneous. It appears that some strains interact with platelets through the toll-like receptor-4 (TLR-4) and others through the Fc gamma glycoprotein. E. coli mainly uses lipopolysaccharide (LPS) to activate platelets and cause the release of antibacterial molecules, but this is not the case for all strains. In this review, we describe the different mechanisms developed in previous studies, focusing on this heterogeneity of responses that may depend on several factors; mainly, the strain studied, the structure of the LPS and the platelet form used in the studies. We can hypothesize that the structure of O-antigen and an eventual resistance to antibiotics might explain this difference.
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Affiliation(s)
- Amina Ezzeroug Ezzraimi
- IRD, APHM, MEPHI, IHU Méditerranée Infection, Aix Marseille Université, 19-21 Boulevard Jean Moulin, 13005 Marseille, France; (A.E.E.); (N.H.); (A.M.); (J.-M.R.)
- IHU Méditerranée Infection, Boulevard Jean Moulin, 13385 Marseille, France
| | - Nadji Hannachi
- IRD, APHM, MEPHI, IHU Méditerranée Infection, Aix Marseille Université, 19-21 Boulevard Jean Moulin, 13005 Marseille, France; (A.E.E.); (N.H.); (A.M.); (J.-M.R.)
- Département de Pharmacie, Faculté de Médecine, Université Ferhat Abbas Sétif I, Sétif 19000, Algeria
| | - Antoine Mariotti
- IRD, APHM, MEPHI, IHU Méditerranée Infection, Aix Marseille Université, 19-21 Boulevard Jean Moulin, 13005 Marseille, France; (A.E.E.); (N.H.); (A.M.); (J.-M.R.)
- IHU Méditerranée Infection, Boulevard Jean Moulin, 13385 Marseille, France
- Hematology Department, Timone Hospital, APHM, Boulevard Jean Moulin, 13005 Marseille, France
| | - Jean-Marc Rolain
- IRD, APHM, MEPHI, IHU Méditerranée Infection, Aix Marseille Université, 19-21 Boulevard Jean Moulin, 13005 Marseille, France; (A.E.E.); (N.H.); (A.M.); (J.-M.R.)
- IHU Méditerranée Infection, Boulevard Jean Moulin, 13385 Marseille, France
| | - Laurence Camoin-Jau
- IRD, APHM, MEPHI, IHU Méditerranée Infection, Aix Marseille Université, 19-21 Boulevard Jean Moulin, 13005 Marseille, France; (A.E.E.); (N.H.); (A.M.); (J.-M.R.)
- IHU Méditerranée Infection, Boulevard Jean Moulin, 13385 Marseille, France
- Hematology Department, Timone Hospital, APHM, Boulevard Jean Moulin, 13005 Marseille, France
- Correspondence: ; Tel.: +33-4-9138-6049; Fax: +33-4-9138-9155
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11
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Noguchi R, Yoshimatsu Y, Sin Y, Ono T, Tsuchiya R, Yoshida H, Kiyono T, Yonemura Y, Kondo T. Establishment and Characterization of NCC- PMP1-C1: A Novel Patient-Derived Cell Line of Metastatic Pseudomyxoma Peritonei. J Pers Med 2022; 12:258. [PMID: 35207746 PMCID: PMC8877412 DOI: 10.3390/jpm12020258] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 01/20/2022] [Accepted: 02/07/2022] [Indexed: 02/06/2023] Open
Abstract
Pseudomyxoma peritonei (PMP) is the intraperitoneal accumulation of mucus due to a mucinous tumor. PMP predominantly occurs in low-grade carcinomas. The incidence rate of PMP is one to two cases per million people per year. The standard therapy of PMP comprises complete cytoreductive surgery and hyperthermic intraperitoneal chemotherapy. PMP recurs in about 50% of patients, and 30-40% are unable to receive the standard treatment because of its invasiveness. Therefore, novel therapies are of the utmost necessity. For basic and pre-clinical research, patient-derived cell lines are essential resources. However, only two PMP cell lines have been reported. Thus, we established a novel PMP cell line from resected metastatic PMP tissue. The cell line, named NCC-PMP1-C1, was maintained for more than 5 months and was passaged 25 times. NCC-PMP1-C1 cells demonstrated multiple amplifications and deletions, slow growth, tumorigenic ability, and dissemination of tumor cells in nude mice. We also used NCC-PMP1-C1 cells to screen drugs, which demonstrated a significant response to daunorubicin HCl, homoharringtonine, mitomycin C, and ponatinib. The NCC-PMP1-C1 cell line is the first PMP cell line derived from metastasized tissue and will be a potential resource for basic and pre-clinical research of metastasized PMP.
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Affiliation(s)
- Rei Noguchi
- Division of Rare Cancer Research, National Cancer Center Research Institute, Tokyo 104-0045, Japan; (R.N.); (Y.Y.); (Y.S.); (T.O.); (R.T.)
| | - Yuki Yoshimatsu
- Division of Rare Cancer Research, National Cancer Center Research Institute, Tokyo 104-0045, Japan; (R.N.); (Y.Y.); (Y.S.); (T.O.); (R.T.)
| | - Yooksil Sin
- Division of Rare Cancer Research, National Cancer Center Research Institute, Tokyo 104-0045, Japan; (R.N.); (Y.Y.); (Y.S.); (T.O.); (R.T.)
| | - Takuya Ono
- Division of Rare Cancer Research, National Cancer Center Research Institute, Tokyo 104-0045, Japan; (R.N.); (Y.Y.); (Y.S.); (T.O.); (R.T.)
| | - Ryuto Tsuchiya
- Division of Rare Cancer Research, National Cancer Center Research Institute, Tokyo 104-0045, Japan; (R.N.); (Y.Y.); (Y.S.); (T.O.); (R.T.)
- Department of Orthopedic Surgery, Graduate School of Medicine, Chiba University, Chiba 263-8522, Japan
| | - Hiroshi Yoshida
- Department of Diagnostic Pathology, National Cancer Center Hospital, Tokyo 104-0045, Japan;
| | - Tohru Kiyono
- Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa 277-8577, Japan;
| | - Yutaka Yonemura
- NPO to Support Peritoneal Surface Malignancy Treatment, Japanese/Asian School of Peritoneal Surface Oncology, Kyoto 600-8189, Japan;
- Peritoneal Surface Malignancy Center, Department of Regional Cancer Therapy, Kishiwada Tokushukai Hospital, Kishiwada 596-8522, Japan
- Peritoneal Surface Malignancy Center, Department of Regional Cancer Therapy, Kusatsu General Hospital, Shiga 525-8585, Japan
| | - Tadashi Kondo
- Division of Rare Cancer Research, National Cancer Center Research Institute, Tokyo 104-0045, Japan; (R.N.); (Y.Y.); (Y.S.); (T.O.); (R.T.)
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12
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Maierhofer CN, Ranapurwala SI, DiPrete BL, Fulcher N, Ringwalt CL, Chelminski PR, Ives TJ, Dasgupta N, Go VF, Pence BW. Association Between Statewide Opioid Prescribing Interventions and Opioid Prescribing Patterns in North Carolina, 2006-2018. Pain Med 2021; 22:2931-2940. [PMID: 34175958 PMCID: PMC8665995 DOI: 10.1093/pm/pnab181] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
OBJECTIVE To examine the impact of three sequential statewide policy and legislative interventions on opioid prescribing practices among privately insured individuals in North Carolina. METHODS An interrupted time series approach was used to examine level and trajectory changes of new and prevalent opioid prescription rates, days' supply, and daily morphine milligram equivalents before and after implementation of a 1) prescription drug monitoring program, 2) state medical board initiative, and 3) legislative action. Analyses were conducted using individual-level claims data from a large private health insurance provider serving North Carolina residents, ages 18-64 years, from January 2006 to August 2018. RESULTS Rates of new and prevalent prescription opioid patients were relatively unaffected by the prescription monitoring program but sharply declined in the months immediately following both medical board (-3.7 new and -19.3 prevalent patients per 10,000 person months) and legislative (-14.1 new and -26.7 prevalent patients) actions. Among all opioid prescriptions, days' supply steadily increased on average over the study period but declined after legislative action (-1.5 days' supply per year). CONCLUSIONS The voluntary prescription drug monitoring program launched in 2010 only marginally affected opioid prescribing patterns on its own, but its redeployment as an investigative and clinical tool in multifaceted public policy approaches by the state medical board and legislature later in the decade plausibly contributed to notable declines in prescription rates and days' supply. This study lends new emphasis to the importance of enforcement mechanisms for state and national policies seeking to reverse this critical public health crisis.
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Affiliation(s)
- Courtney N Maierhofer
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Shabbar I Ranapurwala
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
- Injury Prevention Research Center, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Bethany L DiPrete
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Naoko Fulcher
- Injury Prevention Research Center, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Christopher L Ringwalt
- Pacific Institute for Research and Evaluation, Chapel Hill, North Carolina, USA
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Paul R Chelminski
- Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Timothy J Ives
- Department of Medicine, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
- Division of Practice Advancement and Clinical Education, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Nabarun Dasgupta
- Injury Prevention Research Center, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Vivian F Go
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Brian W Pence
- Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
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13
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Ke K, Pillai K, Mekkawy AH, Akhter J, Badar S, Valle SJ, Morris DL. The effect of intraperitoneal administration of BromAc on blood parameters: phase 1 study. Discov Oncol 2021; 12:25. [PMID: 35201475 PMCID: PMC8777505 DOI: 10.1007/s12672-021-00418-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 07/19/2021] [Indexed: 11/05/2022] Open
Abstract
Intraperitoneal administration of BromAc (bromelain + acetylcysteine) is currently undergoing a phase 1 clinical trial for pseudomyxoma peritonei at our institution. This study reports on analysis of routine blood parameters before and after treatment for a series of 25 patients in this trial. Blood parameters assessed included full blood count, electrolytes, urea, and creatinine, liver function tests, coagulation studies, as well as inflammatory markers (CRP). Certain parameters such as CRP, and white cell count, were significantly elevated after treatment whilst serum albumin level was reduced indicating an inflammatory reaction. However, liver enzymes, coagulation studies, and other parameters were not affected. Therefore, there are no additional safety signals evident upon analysis of routine blood parameter testing.
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Affiliation(s)
- Kevin Ke
- Department of Surgery, St. George Hospital, Kogarah, NSW, 2217, Australia
- Mucpharm Pty Ltd, Kogarah, NSW, 2217, Australia
| | - Krishna Pillai
- Department of Surgery, St. George Hospital, Kogarah, NSW, 2217, Australia
- Mucpharm Pty Ltd, Kogarah, NSW, 2217, Australia
| | - Ahmed H Mekkawy
- Department of Surgery, St. George Hospital, Kogarah, NSW, 2217, Australia
- Mucpharm Pty Ltd, Kogarah, NSW, 2217, Australia
| | - Javed Akhter
- Department of Surgery, St. George Hospital, Kogarah, NSW, 2217, Australia
- Mucpharm Pty Ltd, Kogarah, NSW, 2217, Australia
| | - Samina Badar
- Department of Surgery, St. George Hospital, Kogarah, NSW, 2217, Australia
- St George & Sutherland Clinical School, University of New South Wales, Sydney, NSW, 2217, Australia
| | - Sarah J Valle
- Department of Surgery, St. George Hospital, Kogarah, NSW, 2217, Australia
- Mucpharm Pty Ltd, Kogarah, NSW, 2217, Australia
| | - David L Morris
- Department of Surgery, St. George Hospital, Kogarah, NSW, 2217, Australia.
- Mucpharm Pty Ltd, Kogarah, NSW, 2217, Australia.
- St George & Sutherland Clinical School, University of New South Wales, Sydney, NSW, 2217, Australia.
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14
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Wang B, Yao J, Ma R, Liu D, Lu Y, Shi G, An L, Xia A, Chen F, Pang S, Zhai X, Liu G, Chen S, Xu M, Song L, Xu H. The mutational landscape and prognostic indicators of pseudomyxoma peritonei originating from the ovary. Int J Cancer 2021; 148:2036-2047. [PMID: 33403690 DOI: 10.1002/ijc.33460] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 11/29/2020] [Accepted: 12/01/2020] [Indexed: 12/12/2022]
Abstract
Pseudomyxoma peritonei (PMP) is a rare disorder with unique pathological and genetic changes. Although several studies have reported the clinical features and mutational changes of PMP that originates from the appendix, few studies on PMP originating from the ovary have been reported due to its extreme rarity. In order to characterize the somatic mutational landscape and to investigate the prognosis predicting factors of ovary-originating PMP, we examined 830 cases of PMP and identified 16 patients with PMP that originated from the ovary. Whole-exome sequencing (WES) was performed on 12 cases using formalin-fixed, paraffin-embedded (FFPE) tissue samples. We found that 25% (3/12) of the patients carried mutations in cancer driver genes, including TP53, ATM and SETD2, and 16.7% (2/12) of the patients carried mutations in cancer driver genes, including ATRX, EP300, FGFR2, KRAS, NOCR1 and RB1. The MUC16 (58.33%), BSN (41.67%), PCNT (41.67%), PPP2R5A (41.67%), PRSS36 (41.67%), PTPRK (41.67%) and SBF1 (41.67%) genes presented the highest mutational frequencies. The PI3K-Akt signaling pathway, human papillomavirus infection pathway, cell skeleton, cell adhesion, and extracellular matrix and membrane proteins were the major pathways or functions that were affected. Patients were followed up to 174 months (median: 48.26 months). The 5-year OS rate for all patients was 71.2% and the median OS was not reached. PTPRK mutations, presurgical CA199 level, completeness of cytoreduction (CCR) and peritoneal cancer index (PCI) were identified as potential predictive factors for patient survival. In conclusion, the mutational landscape for ovary-originating PMP was revealed and exhibited unique features distinct from appendix-originating PMP. PTPRK, CA199, CCR and PCI may predict patient survival.
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Affiliation(s)
- Bing Wang
- Department of Myxoma, Aerospace Center Hospital, Beijing, China
| | - Jianfei Yao
- HaploX Biotechnology, Co., Ltd, Shenzhen, China
| | - Ruiqing Ma
- Department of Myxoma, Aerospace Center Hospital, Beijing, China
| | - Danni Liu
- HaploX Biotechnology, Co., Ltd, Shenzhen, China
| | - Yiyan Lu
- Department of Myxoma, Aerospace Center Hospital, Beijing, China
| | - Guanjun Shi
- Department of Myxoma, Aerospace Center Hospital, Beijing, China
| | - Lubiao An
- Department of Myxoma, Aerospace Center Hospital, Beijing, China
| | - Ao Xia
- Department of Myxoma, Aerospace Center Hospital, Beijing, China
| | - Feng Chen
- Department of Myxoma, Aerospace Center Hospital, Beijing, China
| | - Shaojun Pang
- Department of Myxoma, Aerospace Center Hospital, Beijing, China
| | - Xichao Zhai
- Department of Myxoma, Aerospace Center Hospital, Beijing, China
| | - Guifeng Liu
- HaploX Biotechnology, Co., Ltd, Shenzhen, China
| | - Shifu Chen
- HaploX Biotechnology, Co., Ltd, Shenzhen, China
| | - Mingyan Xu
- HaploX Biotechnology, Co., Ltd, Shenzhen, China
| | - Lele Song
- HaploX Biotechnology, Co., Ltd, Shenzhen, China.,Department of Radiotherapy, the Eighth Medical Center of the Chinese PLA General Hospital, Beijing, China
| | - Hongbin Xu
- Department of Myxoma, Aerospace Center Hospital, Beijing, China
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15
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Calabrò ML, Lazzari N, Rigotto G, Tonello M, Sommariva A. Role of Epithelial-Mesenchymal Plasticity in Pseudomyxoma Peritonei: Implications for Locoregional Treatments. Int J Mol Sci 2020; 21:ijms21239120. [PMID: 33266161 PMCID: PMC7731245 DOI: 10.3390/ijms21239120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/25/2020] [Accepted: 11/28/2020] [Indexed: 12/14/2022] Open
Abstract
The mechanisms by which neoplastic cells disseminate from the primary tumor to metastatic sites, so-called metastatic organotropism, remain poorly understood. Epithelial-mesenchymal transition (EMT) plays a role in cancer development and progression by converting static epithelial cells into the migratory and microenvironment-interacting mesenchymal cells, and by the modulation of chemoresistance and stemness of tumor cells. Several findings highlight that pathways involved in EMT and its reverse process (mesenchymal-epithelial transition, MET), now collectively called epithelial-mesenchymal plasticity (EMP), play a role in peritoneal metastases. So far, the relevance of factors linked to EMP in a unique peritoneal malignancy such as pseudomyxoma peritonei (PMP) has not been fully elucidated. In this review, we focus on the role of epithelial-mesenchymal dynamics in the metastatic process involving mucinous neoplastic dissemination in the peritoneum. In particular, we discuss the role of expression profiles and phenotypic transitions found in PMP in light of the recent concept of EMP. A better understanding of EMP-associated mechanisms driving peritoneal metastasis will help to provide a more targeted approach for PMP patients selected for locoregional interventions involving cytoreductive surgery and hyperthermic intraperitoneal chemotherapy.
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Affiliation(s)
- Maria Luisa Calabrò
- Immunology and Molecular Oncology, Veneto Institute of Oncology IOV-IRCCS, I-35128 Padua, Italy; (N.L.); (G.R.)
- Correspondence:
| | - Nayana Lazzari
- Immunology and Molecular Oncology, Veneto Institute of Oncology IOV-IRCCS, I-35128 Padua, Italy; (N.L.); (G.R.)
| | - Giulia Rigotto
- Immunology and Molecular Oncology, Veneto Institute of Oncology IOV-IRCCS, I-35128 Padua, Italy; (N.L.); (G.R.)
| | - Marco Tonello
- Surgical Oncology of the Esophagus and Digestive Tract, Veneto Institute of Oncology IOV-IRCCS, I-35128 Padua, Italy;
| | - Antonio Sommariva
- Advanced Surgical Oncology, Surgical Oncology of the Esophagus and Digestive Tract, Veneto Institute of Oncology IOV-IRCCS, I-35128 Padua, Italy;
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16
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Nazari M, Javandoost E, Talebi M, Movassaghpour A, Soleimani M. Platelet Microparticle Controversial Role in Cancer. Adv Pharm Bull 2020; 11:39-55. [PMID: 33747851 PMCID: PMC7961228 DOI: 10.34172/apb.2021.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 04/20/2020] [Accepted: 04/21/2020] [Indexed: 12/11/2022] Open
Abstract
Platelet-derived microparticles (PMPs) are a group of micrometer-scale extracellular vesicles released by platelets upon activation that are responsible for the majority of microvesicles found in plasma. PMPs’ physiological properties and functions have long been investigated by researchers. In this regard, a noticeable area of studies has been devoted to evaluating the potential roles and effects of PMPs on cancer progression. Clinical and experimental evidence conflictingly implicates supportive and suppressive functions for PMPs regarding cancer. Many of these functions could be deemed as a cornerstone for future considerations of PMPs usage in cancer targeted therapy. This review discusses what is currently known about PMPs and provides insights for new and possible research directions for further grasping the intricate interplay between PMPs and cancer.
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Affiliation(s)
- Mahnaz Nazari
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ehsan Javandoost
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
| | - Mehdi Talebi
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Applied Cell Sciences, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran. Introduction
| | - Aliakbar Movassaghpour
- Hematology and Oncology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Masoud Soleimani
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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17
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Soucisse ML, Fisher O, Liauw W, Ghanipour L, Cashin P. Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy with or without early post-operative intraperitoneal chemotherapy for appendix neoplasms with peritoneal metastases: A propensity score analysis. Eur J Surg Oncol 2020; 47:157-163. [PMID: 32943277 DOI: 10.1016/j.ejso.2020.08.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 08/15/2020] [Accepted: 08/27/2020] [Indexed: 10/23/2022]
Abstract
INTRODUCTION - Early post-operative intraperitoneal chemotherapy (EPIC) can be used after cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) in patients with resectable peritoneal metastases (PM). Whether EPIC adds any benefit is debatable. METHODS - We performed a retrospective case-control analysis of patients with PM of appendiceal origin treated by CRS + HIPEC ± EPIC at Uppsala University Hospital between 2004 and 2012. The 206 patients were divided into two groups depending on if they received EPIC or not. The two groups were propensity-matched with a 1:1 ratio. The patients in the EPIC group were mostly operated in the first three years of the unit's experience. RESULTS - After matching, 76 patients were left in each group. The groups were similar, except for the proportion of histological subtypes (p = 0.021) and chemotherapy agents used for HIPEC (0.017). Survival outcomes were stratified by histology. The patients who received EPIC had a longer hospital and ICU length of stay (15.71 vs 14.28 days, p = 0.049), (1.45 vs 1.05 days, p = 0.002), respectively. Post-operative complications were similar in both groups. Overall Survival (OS) and recurrence-free survival (RFS) did not differ for the patients with low-grade histology. The patients with high-grade tumors who received EPIC had a significantly worse OS (p = 0.0088) while having the same RFS as the patients who did not receive EPIC. CONCLUSION Our results suggest there is no benefit of EPIC in patients with advanced appendiceal tumors while increasing hospital and ICU length of stays. A suboptimal group matching might influence our results.
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Affiliation(s)
- Mikael L Soucisse
- Department of Surgery, Hôpital Maisonneuve-Rosemont, Université de Montréal, 5415 Boul L'Assomption, Montréal QC, H1T 2M4, Canada.
| | - Oliver Fisher
- Department of Surgery, University of New South Wales, St George Hospital, Sydney, Australia
| | - Winston Liauw
- Department of Medical Oncology, University of New South Wales, St George Hospital, Sydney, Australia
| | - Lana Ghanipour
- Department of Surgical Sciences, Section of Surgery, Uppsala University, Uppsala, Sweden
| | - Peter Cashin
- Department of Surgical Sciences, Section of Surgery, Uppsala University, Uppsala, Sweden
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18
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Yan F, Shi F, Li X, Yu C, Lin Y, Li Y, Jin M. Clinicopathological Characteristics of Pseudomyxoma Peritonei Originated from Ovaries. Cancer Manag Res 2020; 12:7569-7578. [PMID: 32904568 PMCID: PMC7457389 DOI: 10.2147/cmar.s264474] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 08/03/2020] [Indexed: 12/12/2022] Open
Abstract
Objective This study aims to demonstrate clinicopathological characteristics and immunohistopathological phenotypes of pseudomyxoma peritonei (PMP) originated from ovaries. Methods The primary origin of PMP was explored by reviewing H&E sections retrospectively and performing a series of immunohistochemical staining on CK7, CK20, CDX2, CEA, Villin, SATB2, CA125, ER, PR, and MUC. Results Among 310 PMP patients, a few originated from extra-appendix, whereas eight cases were of ovarian origin (2.6%), including three teratoma-associated ovarian mucinous tumors and five primary ovarian mucinous tumors with spontaneous or iatrogenic rupture, respectively. Most peritoneal metastases were acellular mucin or low-grade mucinous carcinoma peritonei (6/8, 75%), while the rest were high-grade mucinous carcinoma peritonei (2/8, 25%). Tumors were positive for CK20, CDX2, CEA, and Villin. SATB2 was specifically diffuse positive in teratoma-associated ovarian mucinous tumors, and negative in primary ovarian mucinous tumors. Differential expression of MUC was observed in these tumors. Conclusion PMP of ovarian origin is extremely rare. The precise diagnosis requires serial sections of the appendix or suspicious tissue to exclude appendiceal mucinous neoplasms, as well as comprehensive analysis of clinical features, surgical findings, histopathological characteristics, and immunohistochemistry on specific biomarkers.
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Affiliation(s)
- Fengcai Yan
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Beijing, People's Republic of China.,Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Feng Shi
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Beijing, People's Republic of China.,Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Xinbao Li
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Chunkai Yu
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yulin Lin
- Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Yan Li
- Department of Pathology, Beijing Shijitan Hospital, Capital Medical University, Beijing, People's Republic of China.,Department of Peritoneal Cancer Surgery, Beijing Shijitan Hospital, Capital Medical University, Beijing, People's Republic of China
| | - Mulan Jin
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, People's Republic of China
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19
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Di Leo A, Corvasce A, Weindelmayer J, Mason EJ, Casella F, de Manzoni G. Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) in pseudomyxoma peritonei of appendiceal origin: result of a single centre study. Updates Surg 2020; 72:1207-1212. [PMID: 32410159 DOI: 10.1007/s13304-020-00788-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Accepted: 05/02/2020] [Indexed: 12/25/2022]
Abstract
Pseudomyxoma peritonei (PMP) is a rare condition characterized by the intraperitoneal accumulation of mucus derived mostly by appendiceal mucinous neoplasm. Cytoreductive surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC) can offer a favourable overall survival. In this study, we report a single-institute outcomes following CRS and HIPEC in patients with this condition. This is a review of prospectively collected data from 32 patients (11 men and 21 women) affected by PMP of appendiceal origin who underwent CRS and HIPEC from 2008 to 2016 in our Surgical Unit of General and Esophagogastric Surgery. The median age of the patients was 53 years (range 25-77 years). After CRS, all patients underwent HIPEC (mytomicin C 3.3 mg/m2/L and cisplatin 25 mg/m2/L at 41 °C for 60 min) with closed abdomen technique. The median (range) follow-up time for surviving patients was 43 (18-119) months. The median peritoneal cancer index (PCI) was 17. Complete cytoreductive surgery (CC0) was achieved in in 22 patients (69%). The majority of patients (88%) had grade I-II complications, 3 (9%) had grade III complications, and 1 (3%) patient had a grade IV complication. There were no perioperative mortalities. The median hospital stay was 9.5 (range 9-24) days. One year and 5-year overall survival (OS) were 90% and 58%, respectively. Regardless of histotype, disease-free survival was 95% at 1 year and 46% at 5 years. CRS in combination with HIPEC is a feasible treatment strategy and can achieve a satisfactory outcome in patients with PMP of appendiceal origin.
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Affiliation(s)
- Alberto Di Leo
- General and Upper GI Surgery Division, University of Verona, Piazzale Stefani, 1, 37124, Verona, Italy.
| | - Arianna Corvasce
- General and Upper GI Surgery Division, University of Verona, Piazzale Stefani, 1, 37124, Verona, Italy
| | - Jacopo Weindelmayer
- General and Upper GI Surgery Division, University of Verona, Piazzale Stefani, 1, 37124, Verona, Italy
| | - Elena Jane Mason
- General and Upper GI Surgery Division, University of Verona, Piazzale Stefani, 1, 37124, Verona, Italy
| | - Francesco Casella
- General and Upper GI Surgery Division, University of Verona, Piazzale Stefani, 1, 37124, Verona, Italy
| | - Giovanni de Manzoni
- General and Upper GI Surgery Division, University of Verona, Piazzale Stefani, 1, 37124, Verona, Italy
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Vettraino C, Peracchi A, Donini S, Parisini E. Structural characterization of human O-phosphoethanolamine phospho-lyase. Acta Crystallogr F Struct Biol Commun 2020; 76:160-167. [PMID: 32254049 PMCID: PMC7137380 DOI: 10.1107/s2053230x20002988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Accepted: 03/03/2020] [Indexed: 11/10/2022] Open
Abstract
Human O-phosphoethanolamine phospho-lyase (hEtnppl; EC 4.2.3.2) is a pyridoxal 5'-phosphate-dependent enzyme that catalyzes the degradation of O-phosphoethanolamine (PEA) into acetaldehyde, phosphate and ammonia. Physiologically, the enzyme is involved in phospholipid metabolism, as PEA is the precursor of phosphatidylethanolamine in the CDP-ethanolamine (Kennedy) pathway. Here, the crystal structure of hEtnppl in complex with pyridoxamine 5'-phosphate was determined at 2.05 Å resolution by molecular replacement using the structure of A1RDF1 from Arthrobacter aurescens TC1 (PDB entry 5g4i) as the search model. Structural analysis reveals that the two proteins share the same general fold and a similar arrangement of active-site residues. These results provide novel and useful information for the complete characterization of the human enzyme.
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Affiliation(s)
- Chiara Vettraino
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy
| | - Alessio Peracchi
- Department of Chemistry, Life Sciences, and Environmental Sustainability, University of Parma, 43124 Parma, Italy
| | - Stefano Donini
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy
| | - Emilio Parisini
- Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milano, Italy
- Latvian Institute of Organic Synthesis, Aizkraukles 21, Riga, LV-1006, Latvia
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Liang C, Huang J, Luo P, Wang Z, He J, Wu S, Peng C, Cao X. Platelet-Derived Microparticles Mediate the Intra-Articular Homing of Mesenchymal Stem Cells in Early-Stage Cartilage Lesions. Stem Cells Dev 2020; 29:414-424. [PMID: 32000580 DOI: 10.1089/scd.2019.0137] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
After intra-articular injection, synovium-derived mesenchymal stem cells (SMSCs) can adhere to damaged cartilage (a process called homing) and then repair the cartilage defect. Nonetheless, the main obstacle of the current method is the insufficient homing ratio of SMSCs, which fails to meet the requirements for cartilage repair and thereby greatly limits the therapeutic effect. In this study, the optimal homing time of SMSCs was determined by evaluating the SMSC homing efficiency at 1, 3, 7, 14, and 28 days after injury using a rat cartilage defect model. The ability of platelet-derived microparticles (PMPs) to promote SMSC homing was evaluated by cartilage/subchondral bone cell adhesion, transmembrane migration, and intra-articular cell distribution assays. SMSCs had an optimal homing efficiency in the very early stage (1 day) after cartilage injury. We found that PMPs, which were abundant in the synovial fluid at this early stage, were responsible for this augmented SMSC homing. An ex vivo cell adhesion assay revealed that the coincubation of SMSCs with PMPs at a 1:50 ratio markedly enhanced cell adhesion to cartilage and the subchondral bone surface. The transmembrane cell migration assay yielded similar results. Further in vivo homing assays revealed that PMPs possess excellent homing capacity, which they transferred, to some extent, to SMSCs by coating the cell surface. We measured the expression of homing-related genes in SMSCs exposed to PMPs and identified several upregulated genes. Moreover, platelet-specific adhesion molecules, particularly GPIIb/IIIa, CXCR4, ITGβ1, and ITGα2, were determined to play a critical role in the homing of SMSC/PMP complexes. This improvement in SMSC homing increased the volume of regenerated tissue in the cartilage defect. In conclusion, PMPs significantly promoted the homing of SMSCs to cartilage, which facilitated cartilage regeneration. These data suggest a safe and promising strategy for improving the outcome of stem cell therapy.
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Affiliation(s)
- Chi Liang
- Department of Orthopaedics, The 3rd Xiangya Hospital, Central South University, Changsha, China
| | - Junjie Huang
- Department of Orthopaedics, The 3rd Xiangya Hospital, Central South University, Changsha, China
| | - Pan Luo
- Department of Orthopaedics, The 3rd Xiangya Hospital, Central South University, Changsha, China
| | - Zili Wang
- Department of Orthopaedics, The 3rd Xiangya Hospital, Central South University, Changsha, China
| | - Jinshen He
- Department of Orthopaedics, The 3rd Xiangya Hospital, Central South University, Changsha, China
| | - Song Wu
- Department of Orthopaedics, The 3rd Xiangya Hospital, Central South University, Changsha, China
| | - Cheng Peng
- Department of Burns and Plastic Surgery, The 3rd Xiangya Hospital, Central South University, Changsha, China
| | - Xu Cao
- Department of Orthopaedics, The 3rd Xiangya Hospital, Central South University, Changsha, China
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Ranapurwala SI, Carnahan RM, Brown G, Hinman J, Casteel C. Impact of Iowa's Prescription Monitoring Program on Opioid Pain Reliever Prescribing Patterns: An Interrupted Time Series Study 2003-2014. Pain Med 2020; 20:290-300. [PMID: 29509935 DOI: 10.1093/pm/pny029] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
OBJECTIVE To evaluate the impact of Iowa's prescription monitoring program (PMP), implemented in 2009, on opioid pain reliever (OPR) prescribing patterns. METHODS We conducted interrupted time series analyses using 2003-2014 health insurance claims from a private health insurer in Iowa. OPR prescriptions for all beneficiaries were included. Another data set included only OPR prescription for new opioid users required to have six months of insurance coverage. We evaluate four OPR prescribing patterns: 1) average daily dosage in morphine milligrams equivalents (MME), 2) MME per prescription, 3) average days' supply per prescription, and 4) prescription rate per 1,000 insured person-years. We examined confounding and effect measure modification of the relationship between PMP and prescribing patterns by age and sex. RESULTS During the 12 years of follow-up, 1,512,388 insured Iowans contributed 6,169,634.92 person-years of follow-up. Of these, 505,274 patients filled 2,401,818 OPR prescriptions and 360,688 new OPR users filled as many first OPR prescriptions. The increasing trend of OPR prescription rates from 2003 to 2009 declined post-PMP. Similarly, there was a large decline in MME per day and MME per prescription. The OPR days' supply kept increasing post-PMP implementation, albeit at a slightly slower rate than pre-PMP implementation. There was no confounding by age and sex; however, we observed heterogeneity by age and sex; patients aged ≥50 years and females received higher doses and more prescriptions pre-PMP and experienced the greatest declines post-PMP. CONCLUSIONS Our study suggests that Iowa PMP implementation may have resulted in declines in OPR prescribing, and this impact varies by patient age and sex.
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Affiliation(s)
- Shabbar I Ranapurwala
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.,Department of Epidemiology, University of Iowa, Iowa City, Iowa
| | - Ryan M Carnahan
- Department of Epidemiology, University of Iowa, Iowa City, Iowa
| | - Grant Brown
- Department of Biostatistics, University of Iowa, Iowa City, Iowa
| | - Jessica Hinman
- Department of Epidemiology, University of Iowa, Iowa City, Iowa
| | - Carri Casteel
- Department of Occupational and Environmental Health, University of Iowa, Iowa City, Iowa, USA
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Bohlender LL, Parsons J, Hoernstein SNW, Rempfer C, Ruiz-Molina N, Lorenz T, Rodríguez Jahnke F, Figl R, Fode B, Altmann F, Reski R, Decker EL. Stable Protein Sialylation in Physcomitrella. Front Plant Sci 2020; 11:610032. [PMID: 33391325 PMCID: PMC7775405 DOI: 10.3389/fpls.2020.610032] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 11/30/2020] [Indexed: 05/07/2023]
Abstract
Recombinantly produced proteins are indispensable tools for medical applications. Since the majority of them are glycoproteins, their N-glycosylation profiles are major determinants for their activity, structural properties and safety. For therapeutical applications, a glycosylation pattern adapted to product and treatment requirements is advantageous. Physcomitrium patens (Physcomitrella, moss) is able to perform highly homogeneous complex-type N-glycosylation. Additionally, it has been glyco-engineered to eliminate plant-specific sugar residues by knock-out of the β1,2-xylosyltransferase and α1,3-fucosyltransferase genes (Δxt/ft). Furthermore, Physcomitrella meets wide-ranging biopharmaceutical requirements such as GMP compliance, product safety, scalability and outstanding possibilities for precise genome engineering. However, all plants, in contrast to mammals, lack the capability to perform N-glycan sialylation. Since sialic acids are a common terminal modification on human N-glycans, the property to perform N-glycan sialylation is highly desired within the plant-based biopharmaceutical sector. In this study, we present the successful achievement of protein N-glycan sialylation in stably transformed Physcomitrella. The sialylation ability was achieved in a Δxt/ft moss line by stable expression of seven mammalian coding sequences combined with targeted organelle-specific localization of the encoded enzymes responsible for the generation of β1,4-galactosylated acceptor N-glycans as well as the synthesis, activation, transport and transfer of sialic acid. Production of free (Neu5Ac) and activated (CMP-Neu5Ac) sialic acid was proven. The glycosidic anchor for the attachment of terminal sialic acid was generated by the introduction of a chimeric human β1,4-galactosyltransferase gene under the simultaneous knock-out of the gene encoding the endogenous β1,3-galactosyltransferase. Functional complex-type N-glycan sialylation was confirmed via mass spectrometric analysis of a stably co-expressed recombinant human protein.
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Affiliation(s)
- Lennard L. Bohlender
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Juliana Parsons
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Freiburg, Germany
| | | | - Christine Rempfer
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Freiburg, Germany
- Spemann Graduate School of Biology and Medicine, University of Freiburg, Freiburg, Germany
| | - Natalia Ruiz-Molina
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Timo Lorenz
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Fernando Rodríguez Jahnke
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Freiburg, Germany
- Spemann Graduate School of Biology and Medicine, University of Freiburg, Freiburg, Germany
| | - Rudolf Figl
- Department of Chemistry, University of Natural Resources and Life Sciences, Vienna, Austria
| | | | - Friedrich Altmann
- Department of Chemistry, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Ralf Reski
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Freiburg, Germany
- Spemann Graduate School of Biology and Medicine, University of Freiburg, Freiburg, Germany
- Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, Germany
- Cluster of Excellence livMatS, Freiburg Center for Interactive Materials and Bioinspired Technologies, University of Freiburg, Freiburg, Germany
| | - Eva L. Decker
- Plant Biotechnology, Faculty of Biology, University of Freiburg, Freiburg, Germany
- *Correspondence: Eva L. Decker,
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Scarano A, Amodeo V, Leonardi V, Mortellaro C, Sbarbati A, Amuso D, Amore R, Pagnini D. Evaluation of the effectiveness and safety of peppermint peel ( PMP) soft peeling for skin ageing. J BIOL REG HOMEOS AG 2019; 33:93-101. DENTAL SUPPLEMENT. [PMID: 32425029] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Turning to peeling in a dermatological sphere is extensively common and has been used for a long time. From the use of single acids moving on to the so-called compound peelings (associations of more than one substance in the same product) and the combined peelings which take advantage of the action of different substances in a synergistic manner (different products are applied sequentially) in order to best guarantee a greater effectiveness of the treatment for the recommended target. Superficial peelings, combined and not, have led to a drastic reduction in the percentage of incidence of adverse events typical of medium and deep peels. Nevertheless, it has been demonstrated that superficial peels bring about a rejuvenating effect through the mechanical stimulation of the Skin Stress Response System (SSRS), system designated to repairing the damaged tissue and restoring of the normal homeostasis. Clinical trials aims to evaluate the effectiveness and safety of the peppermint peel (PMP) medical device in subjects with different ageing expressions both in qualitative terms (different blemishes such as discolouration, fine wrinkles, elastosis, atony and skin inelasticity, laxity, scarce superficial hydration) and in quantitative terms (degree, extension and number of lesions). A non-controlled multi-centric clinical trial was done in 121 subjects. The use protocol calls for a session every 2 weeks for a total of 4 sessions. Subjects were evaluated before each subsequent session at the first and at 2-4-8 weeks of the fourth and last treatment. During the study there were no adverse events. Only a minimal scurfy flaking and a very slight redness were reported. From an effectiveness point of view, the percentage of therapeutic failure, judged with a score equal to or greater than 4 or 5 in Global Aesthetic Improvement Scale (GAIS) scale was 0%. Best score was obtained in subjects ranging in ages between 38 and 57 (2.02) and in women (2.02) years, while the less satisfactory one was obtained in males (2.14). The study has demonstrated that PMP and the proposed protocol are effective and safe to treat subject with skin signs of chrono and photo ageing, thanks to its capabilities of carrying out a mechanic action indicated as a coadjuvant in the treatment of the dermoepidermic revitalisation through chemical exfoliation and hydration.
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Affiliation(s)
- A Scarano
- Dean Master Program in Aesthetic Medicine Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy
- Master Program in Aesthetic Medicine, University of Chieti-Pescara, Chieti, Italy
| | - V Amodeo
- Master of Aesthetic, Regenerative and Anti-Aging Medicine, University of Verona, Italy
| | - V Leonardi
- Master in Aesthetic Medicine and Wellness, University of Marconi, Roma, Italy
| | - C Mortellaro
- Full Professor Saint Camillus International University of Health Sciences Rome, Italy
| | - A Sbarbati
- Master of Aesthetic, Regenerative and Anti-Aging Medicine, University of Verona, Italy
| | - D Amuso
- Master of Aesthetic, Regenerative and Anti-Aging Medicine, University of Verona, Italy
| | - R Amore
- Master Program in Aesthetic Medicine, University of Chieti-Pescara, Chieti, Italy
- Master of Aesthetic, Regenerative and Anti-Aging Medicine, University of Verona, Italy
- Master in Aesthetic Medicine and Wellness, University of Marconi, Roma, Italy
| | - D Pagnini
- Master in Aesthetic Medicine and Wellness, University of Marconi, Roma, Italy
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Benhaim L, Faron M, Gelli M, Sourrouille I, Honoré C, Delhorme JB, Elias D, Goere D. Survival after complete cytoreductive surgery and HIPEC for extensive pseudomyxoma peritonei. Surg Oncol 2019; 29:78-83. [PMID: 31196498 DOI: 10.1016/j.suronc.2019.03.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 03/05/2019] [Accepted: 03/25/2019] [Indexed: 02/03/2023]
Abstract
INTRODUCTION The optimal treatment for pseudomyxoma peritonei (PMP) combines complete cytoreductive surgery (CRS) with hyperthermic intraperitoneal chemotherapy (HIPEC). Yet, achieving CRS is challenging in the case of extensive involvement of the peritoneal cavity and the survival benefit in this setting remains uncertain. The present study evaluated the surgical outcomes according to the peritoneal extent. METHODS Between 1992 and 2014, 245 patients underwent CRS and HIPEC for PMP in our institution. Their characteristics were reviewed using a prospective database. Extensive PMP was defined as a peritoneal cancer index (PCI) ≥ 28. Sixty-one patients with extensive PMP were compared to 184 with non-extensive PMP. RESULTS Severe complications were more frequent in the extensive group (46% vs. 23%, p < 0.001) but the post-operative mortality was not significantly different (8% vs. 3%, p = 0.1). The 5-year disease-free survival reached 45% in the extensive and 78% in the non-extensive group (p < 0.0001). The 5-year overall survival was 70% and 90% in the extensive and non-extensive group respectively (p < 0.021). CONCLUSION CRS with HIPEC offers prolonged survival even in the case of extensive PMP. Because of the high rate of surgical morbidity in the extensive group, patients should be carefully selected.
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Affiliation(s)
- Léonor Benhaim
- Department of Surgical Oncology, Gustave Roussy, Cancer Campus, 114 Rue Edouard Vaillant, 94805, Villejuif, Cedex, France.
| | - Matthieu Faron
- Department of Surgical Oncology, Gustave Roussy, Cancer Campus, 114 Rue Edouard Vaillant, 94805, Villejuif, Cedex, France
| | - Maximiliano Gelli
- Department of Surgical Oncology, Gustave Roussy, Cancer Campus, 114 Rue Edouard Vaillant, 94805, Villejuif, Cedex, France
| | - Isabelle Sourrouille
- Department of Surgical Oncology, Gustave Roussy, Cancer Campus, 114 Rue Edouard Vaillant, 94805, Villejuif, Cedex, France
| | - Charles Honoré
- Department of Surgical Oncology, Gustave Roussy, Cancer Campus, 114 Rue Edouard Vaillant, 94805, Villejuif, Cedex, France
| | - Jean-Baptiste Delhorme
- Department of General and Digestive Surgery, Hôpitaux Universitaires de Strasbourg, Hôpital de Hautepierre, 2 Avenue Molière, 67200, Strasbourg, France
| | - Dominique Elias
- Department of Surgical Oncology, Gustave Roussy, Cancer Campus, 114 Rue Edouard Vaillant, 94805, Villejuif, Cedex, France
| | - Diane Goere
- Department of Surgical Oncology, Gustave Roussy, Cancer Campus, 114 Rue Edouard Vaillant, 94805, Villejuif, Cedex, France
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Dias RO, Cardoso C, Leal CS, Ribeiro AF, Ferreira C, Terra WR. Domain structure and expression along the midgut and carcass of peritrophins and cuticle proteins analogous to peritrophins in insects with and without peritrophic membrane. J Insect Physiol 2019; 114:1-9. [PMID: 30735683 DOI: 10.1016/j.jinsphys.2019.02.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/22/2019] [Accepted: 02/04/2019] [Indexed: 06/09/2023]
Abstract
Most insects have a peritrophic membrane (matrix) (PM) surrounding the food bolus. This structure, similarly to the cuticle, is mainly composed of chitin and proteins. The main proteins forming PM are known as peritrophins (PMP), whereas some of the cuticle proteins are the cuticle proteins analogous to peritrophins (CPAP). Both proteins are composed of one or more chitin binding peritrophin-A domain (CBD) and no other recognized domain. Furthermore, insects containing PM usually have two chitin synthase (CS) genes, one mainly expressed in carcass and the other in midgut. In this work we identified PMP, CPAP and CS genes in the genome of insects from the Polyneoptera, Paraneoptera and Holometabola cohorts and analyzed their expression profile in different species from each group. In agreement with the absence of PM, we observed less CBD-containing proteins and only one CS gene in the genome of Paraneoptera species, except for the Phthiraptera Pediculus humanus. The lack of PM in Paraneoptera species was also confirmed by the micrographs of the midgut of two Hemiptera species, Dysdercus peruvianus and Mahanarva fimbriolata which agreed with the RNA-seq data of both species. Our analyses also highlighted a higher number of CBD-containing proteins in Holometabola in relation to the earlier divergent Polyneoptera group, especially regarding the genes composed of more than three CBDs, which are usually associated to PM formation. Finally, we observed a high number of CBD-containing proteins being expressed in both midgut and carcass tissues of several species, which we named as ubiquitous-CBD-containing proteins (UCBP), as their function is unclear. We hypothesized that these proteins can be involved in both cuticle and PM formation or that they can be involved in immune response and/or tracheolae formation.
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Affiliation(s)
- Renata O Dias
- Departamento de Bioquimica, Instituto de Quimica, Universidade de São Paulo, Av. Prof. Lineu Prestes 748, 05508-000 São Paulo, Brazil
| | - Christiane Cardoso
- Departamento de Bioquimica, Instituto de Quimica, Universidade de São Paulo, Av. Prof. Lineu Prestes 748, 05508-000 São Paulo, Brazil
| | - Camila S Leal
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, C.P. 11461, 05422-970 São Paulo, Brazil
| | - Alberto F Ribeiro
- Departamento de Genética e Biologia Evolutiva, Instituto de Biociências, Universidade de São Paulo, C.P. 11461, 05422-970 São Paulo, Brazil
| | - Clélia Ferreira
- Departamento de Bioquimica, Instituto de Quimica, Universidade de São Paulo, Av. Prof. Lineu Prestes 748, 05508-000 São Paulo, Brazil
| | - Walter R Terra
- Departamento de Bioquimica, Instituto de Quimica, Universidade de São Paulo, Av. Prof. Lineu Prestes 748, 05508-000 São Paulo, Brazil.
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Sullivan BJ, Bolton N, Sarpel U, Magge D. A unique presentation of superinfected pseudomyxoma peritonei secondary to a low-grade appendiceal mucinous neoplasm. World J Surg Oncol 2019; 17:34. [PMID: 30777068 PMCID: PMC6379993 DOI: 10.1186/s12957-019-1578-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Accepted: 02/11/2019] [Indexed: 11/22/2022] Open
Abstract
Background Pseudomyxoma peritonei (PMP) is an uncommon condition characterized by diffuse mucinous material in the abdomen and pelvis, generally arising from a perforated epithelial neoplasm. Typically, the disease presents as suspected acute appendicitis, ovarian mass, abdominal distension, or ventral hernia. Our case represents a very rare presentation of superinfected PMP. Case presentation A 46-year-old female with a past medical history notable for depression, asthma, and uterine leiomyomas presented to an urgent care with 5 days of progressive abdominal pain, bloating, nausea, and subjective fevers. The patient had a diffusely tender abdomen, without peritonitis, was mildly tachycardic, and had a white blood cell count of 15 K. A CT of the abdomen/pelvis was consistent with PMP with a ruptured appendiceal mucocele versus PMP secondary to an adnexal ovarian neoplastic pathology with an infectious component. The patient initially improved on antibiotics but ultimately required two surgeries, the first of which controlled intraabdominal sepsis while the second permitted definitive management of PMP with cytoreductive surgery (CRS) and HIPEC. Conclusion Superinfected PMP is a rare entity with very few documented cases. A staged approach that incorporates clearing the peritoneal infection, with or without resection of the primary tumor, followed by rehabilitation and definitive surgery appears to be a safe and effective management strategy.
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Affiliation(s)
- Brianne J Sullivan
- Department of Surgical Oncology, Mount Sinai St. Luke's West Hospital, 425 W. 59th St., 7th Floor, New York, NY, 10019, USA.
| | - Nathan Bolton
- Department of Surgical Oncology, Mount Sinai St. Luke's West Hospital, 425 W. 59th St., 7th Floor, New York, NY, 10019, USA
| | - Umut Sarpel
- Department of Surgical Oncology, Mount Sinai St. Luke's West Hospital, 425 W. 59th St., 7th Floor, New York, NY, 10019, USA
| | - Deepa Magge
- Department of Surgical Oncology, Mount Sinai St. Luke's West Hospital, 425 W. 59th St., 7th Floor, New York, NY, 10019, USA
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Leulmi Z, Kandouli C, Mihoubi I, Benlabed K, Lezzar A, Rolain JM. First report of bla OXA-24 carbapenemase gene, armA methyltransferase and aac(6')-Ib-cr among multidrug-resistant clinical isolates of Proteus mirabilis in Algeria. J Glob Antimicrob Resist 2018; 16:125-129. [PMID: 30217548 DOI: 10.1016/j.jgar.2018.08.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 08/21/2018] [Accepted: 08/22/2018] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVE Carbapenemase-producing, or carbapenem-resistant, Enterobacteriaceae are an emerging threat to human and animal health because they are resistant to many of the last-line antimicrobials available for treatment of infection. The aim of this study was to analyse the antimicrobial resistance patterns and their encoding genes of Proteus mirabilis isolated in Constantine, Algeria. METHODS A total of 108 Proteus, Morganella and Providencia (PMP) strains were isolated from a large variety of clinical specimens at University Hospital of Constantine in Algeria. Isolates were identified using the API 20E system and matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry (MALDI-TOF/MS). Diagnostic accuracy was determined by independent comparison of each method to phylogenetic analysis based on 16S rRNA gene sequencing. Antimicrobial susceptibility was determined by the standard disk diffusion and Etest methods. The presence of antimicrobial resistance genes was screened for by PCR amplification and sequencing. RESULTS A total of 72 PMP strains were multidrug-resistant (MDR). Among them, one P. mirabilis isolate was resistant to imipenem with a minimum inhibitory concentration (MIC) of ≥12μg/mL. PCR and sequencing showed the presence of various antimicrobial resistance genes, including blaCTX-M-15, blaTEM-1, blaTEM-2, blaPER-1, blaSHV-11, aadA1, aadA2, armA, aac(6')-Ib, aac(6')-Ib-cr, aac(3)-Ia and ant(2″)-I, forming different resistance profiles. Moreover, the blaOXA-24 gene was detected in the imipenem-resistant P. mirabilis strain. CONCLUSION In this study, a MDR P. mirabilis isolate harbouring the blaOXA-24, armA 16S rRNA methylase and aac(6)-Ib-cr genes was found for the first time in Algeria.
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Affiliation(s)
- Zineb Leulmi
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Émergentes, URMITE CNRS-IRD, UMR 6236, Méditerranée Infection, Faculté de Médecine et de Pharmacie, Aix-Marseille Université, Marseille, France; Laboratoire Microbiologie, CHU de Constantine, Constantine, Algeria
| | - Chouaib Kandouli
- Laboratoire de Biologie et Environnement, Faculté des Sciences de la Nature et de la Vie, Université des Frères Mentouri Constantine 1, Constantine, Algeria
| | - Ilhem Mihoubi
- Laboratoire de Mycologie, Biotechnologie et de l'Activité Microbienne, Faculté des Sciences de la Nature et de la Vie, Université des Frères Mentouri Constantine 1, Constantine, Algeria
| | - Kaddour Benlabed
- Laboratoire Microbiologie, CHU de Constantine, Constantine, Algeria
| | - Abdeslam Lezzar
- Laboratoire Microbiologie, CHU de Constantine, Constantine, Algeria
| | - Jean-Marc Rolain
- Unité de Recherche sur les Maladies Infectieuses et Tropicales Émergentes, URMITE CNRS-IRD, UMR 6236, Méditerranée Infection, Faculté de Médecine et de Pharmacie, Aix-Marseille Université, Marseille, France.
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Zaynab M, Fatima M, Abbas S, Umair M, Sharif Y, Raza MA. Long non-coding RNAs as molecular players in plant defense against pathogens. Microb Pathog 2018; 121:277-282. [PMID: 29859899 DOI: 10.1016/j.micpath.2018.05.050] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 05/21/2018] [Accepted: 05/29/2018] [Indexed: 12/20/2022]
Abstract
Long non-coding RNAs (lncRNAs) has significant role in of gene expression and silencing pathways for several biological processes in eukaryotes. lncRNAs has been reported as key player in remodeling chromatin and genome architecture, RNA stabilization and transcription regulation, including enhancer-associated activity. Host lncRNAs are reckoned as compulsory elements of plant defense. In response to pathogen attack, plants protect themselves with the help of lncRNAs -dependent immune systems in which lncRNAs regulate pathogen-associated molecular patterns (PAMPs) and other effectors. Role of lncRNAs in plant microbe interaction has been studied extensively but regulations of several lncRNAs still need extensive research. In this study we discussed and provide as overview the topical advancements and findings relevant to pathogen attack and plant defense mediated by lncRNAs. It is hoped that lncRNAs would be exploited as a mainstream player to achieve food security by tackling different plant diseases.
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Affiliation(s)
- Madiha Zaynab
- College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China.
| | - Mahpara Fatima
- College of Crop Science, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China
| | - Safdar Abbas
- Department of Biochemistry, Quaid-i-Azam University Islamabad, Pakistan
| | - Muhammad Umair
- Department of Biochemistry, Quaid-i-Azam University Islamabad, Pakistan
| | - Yasir Sharif
- College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou, 350002, PR China
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Chen X, Devarajan S, Danda N, Williams C. Insights into the Role of the Peroxisomal Ubiquitination Machinery in Pex13p Degradation in the Yeast Hansenula polymorpha. J Mol Biol 2018; 430:1545-1558. [PMID: 29694833 DOI: 10.1016/j.jmb.2018.03.033] [Citation(s) in RCA: 14] [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] [Received: 02/06/2018] [Revised: 03/15/2018] [Accepted: 03/16/2018] [Indexed: 12/13/2022]
Abstract
The import of matrix proteins into peroxisomes in yeast requires the action of the ubiquitin-conjugating enzyme Pex4p and a complex consisting of the ubiquitin E3 ligases Pex2p, Pex10p and Pex12p. Together, this peroxisomal ubiquitination machinery is thought to ubiquitinate the cycling receptor protein Pex5p and members of the Pex20p family of co-receptors, a modification that is required for receptor recycling. However, recent reports have demonstrated that this machinery plays a role in additional peroxisome-associated processes. Hence, our understanding of the function of these proteins in peroxisome biology is still incomplete. Here, we identify a role for the peroxisomal ubiquitination machinery in the degradation of the peroxisomal membrane protein Pex13p. Our data demonstrate that Pex13p levels build up in cells lacking members of this machinery and also establish that Pex13p undergoes rapid degradation in wild-type cells. Furthermore, we show that Pex13p is ubiquitinated in wild-type cells and also establish that Pex13p ubiquitination is reduced in cells lacking a functional peroxisomal E3 ligase complex. Finally, deletion of PEX2 causes Pex13p to build up at the peroxisomal membrane. Taken together, our data provide further evidence that the role of the peroxisomal ubiquitination machinery in peroxisome biology goes much deeper than receptor recycling alone.
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Affiliation(s)
- Xin Chen
- Molecular Cell Biology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747AG Groningen, the Netherlands
| | - Srishti Devarajan
- Molecular Cell Biology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747AG Groningen, the Netherlands
| | - Natasha Danda
- Molecular Cell Biology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747AG Groningen, the Netherlands
| | - Chris Williams
- Molecular Cell Biology, Groningen Biomolecular Sciences and Biotechnology Institute, University of Groningen, 9747AG Groningen, the Netherlands.
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Bhatt A, George A, Mehta S. CRS and HIPEC for PMP-Use of the LC-CUSUM to Determine the Number of Procedures Required to Attain a Minimal Level of Proficiency in Delivering the Combined Modality Treatment. Indian J Surg Oncol 2017; 8:533-9. [PMID: 29203986 DOI: 10.1007/s13193-017-0692-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 08/07/2017] [Indexed: 01/02/2023] Open
Abstract
The learning curve for cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) for pseudomyxoma peritonei (PMP) which peaks at 90 procedures for the surgeon may take several years to reach. The cumulative summation (CUSUM) test of the learning curve (LC-CUSUM) was used to assess the safety of the procedure (minimal level of proficiency for the surgeon) in terms of morbidity, mortality, and completeness of cytoreduction and early oncological failure before the peak of the learning curve had been reached. The limits for h0 and h1 were set based on the results of large series of such cases published before. From 2011 to 2016, 77 patients with PMP underwent CRS and HIPEC. The mean peritoneal cancer index (PCI) was 28 and 75% of the patients had a CC-0/1 resection. The grade 3-4 morbidity was 42.6% and the mortality was 5.2%. The 5-year overall survival (OS) was 62.3% and the 3-year disease-free survival (DFS) was 71%. The LC-CUSUM analysis showed that for in-hospital mortality, acceptable limits are reached after the 57th case, after the 38th case for the grade 3-4 morbidity and CC-2/3 resections both and after the 70th case for early oncological failure. The number of cases required to attain a minimal level of proficiency for each prognostic variable is different. Using the CUSUM test, surgeons can analyze their performance and determine the areas in which they need to improve before the peak of the learning curve is reached. These outcomes reflect the performance of the multidisciplinary team and not the surgeon alone.
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Chatterjee A, Das NC, Raha S, Maiti IB, Shrestha A, Khan A, Acharya S, Dey N. Enrichment of apoplastic fluid with therapeutic recombinant protein for efficient biofarming. Biotechnol Prog 2017; 33:726-736. [PMID: 28371174 DOI: 10.1002/btpr.2461] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 01/19/2017] [Indexed: 11/10/2022]
Abstract
OBJECTIVE For efficient biofarming we attempted to enrich plant interstitial fluid (IF)/apoplastic fluid with targeted recombinant therapeutic protein. We employed a synthetic human Glucocerebrosidase (GCB), a model biopharmaceutical protein gene in this study. RESULTS Twenty one Nicotiana varieties, species and hybrids were initially screened for individual IF recovery and based on the findings, we selected Nicotiana tabacum NN (S-9-6), Nicotiana tabacum nn (S-9-7) and Nicotiana benthamiana (S-6-6) as model plants for raising transgenic expressing GCB via Agrobacterium mediated transformation under the control of M24 promoter; GCB specific activity in each transgenic lines were analyzed and we observed higher concentration of recombinant GCB in IF of these transgenic lines (S-9-6, S-9-7, and S-6-6) in comparison to their concentration in crude leaf extracts. CONCLUSION Recovery of valuable therapeutics in plant IF as shown in the present study holds great promise for promoting plant based biofarming. © 2017 American Institute of Chemical Engineers Biotechnol. Prog., 33:726-736, 2017.
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Affiliation(s)
- Aparajita Chatterjee
- Dept. of Molecular Plant Virology and Plant Genetic Engineering, KTRDC, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY, 40546-0236
| | - Narayan C Das
- Dept. of Molecular Plant Virology and Plant Genetic Engineering, KTRDC, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY, 40546-0236
| | - Sumita Raha
- Dept. of Molecular Plant Virology and Plant Genetic Engineering, KTRDC, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY, 40546-0236
| | - Indu B Maiti
- Dept. of Molecular Plant Virology and Plant Genetic Engineering, KTRDC, College of Agriculture, Food and Environment, University of Kentucky, Lexington, KY, 40546-0236
| | - Ankita Shrestha
- Dept. of Gene Function and Regulation, Institute of Life Sciences, Government of India, Chandrasekharpur, Bhubaneswar, Odisha, India
- Dept. of Biotechnology, Institute of Life Sciences, Government of India, Chandrasekharpur, Bhubaneswar, Odisha, India
| | - Ahamed Khan
- Dept. of Gene Function and Regulation, Institute of Life Sciences, Government of India, Chandrasekharpur, Bhubaneswar, Odisha, India
- Dept. of Biotechnology, Institute of Life Sciences, Government of India, Chandrasekharpur, Bhubaneswar, Odisha, India
| | - Sefali Acharya
- Dept. of Gene Function and Regulation, Institute of Life Sciences, Government of India, Chandrasekharpur, Bhubaneswar, Odisha, India
- Dept. of Biotechnology, Institute of Life Sciences, Government of India, Chandrasekharpur, Bhubaneswar, Odisha, India
| | - Nrisingha Dey
- Dept. of Gene Function and Regulation, Institute of Life Sciences, Government of India, Chandrasekharpur, Bhubaneswar, Odisha, India
- Dept. of Biotechnology, Institute of Life Sciences, Government of India, Chandrasekharpur, Bhubaneswar, Odisha, India
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Lansom J, Alzahrani N, Liauw W, Morris DL. Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy for Pseudomyxoma Peritonei and Appendix Tumours. Indian J Surg Oncol 2015; 7:166-76. [PMID: 27065707 DOI: 10.1007/s13193-015-0478-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2015] [Accepted: 10/13/2015] [Indexed: 01/29/2023] Open
Abstract
Pseudomyxoma peritonei (PMP) is the intra-peritoneal accumulation of mucus due to mucinous neoplasia, most often from a ruptured mucinous appendiceal neoplasm. A similar syndrome is caused by appendix cancer and other gastrointestinal malignancies. Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) provides long-term survival in selected patients with these conditions. The management of the appendiceal neoplasm prior to development of peritoneal involvement is initially discussed. This is followed by an overview of the management of peritoneal disease caused by appendiceal neoplasms. The principles and basic techniques of CRS and intraperitoneal chemotherapy (both intraoperative and post operative) are then discussed. Survival outcomes from several large studies are summarised. Prognostic factors are also discussed. We report our basic outcome data for the 345 patients with PMP or appendix cancer treated at our institution. Finally, the promising upcoming treatment of mucolytic therapy is discussed. We conclude that appendiceal neoplasms, although rare can cause significant morbidity and mortality. With optimal management long-term survival is possible in the majority of patients. The key to treatment is complete cytoreduction and use of hyperthermic intraperitoneal chemotherapy.
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Affiliation(s)
- Joshua Lansom
- Department of Surgery, University of New South Wales, Sydney, New South Wales ; Department of Surgical Oncology, St George Hospital, Sydney, NSW Australia
| | - Nayef Alzahrani
- Department of Surgery, University of New South Wales, Sydney, New South Wales ; Department of Surgical Oncology, St George Hospital, Sydney, NSW Australia
| | - Winston Liauw
- Department of Surgical Oncology, St George Hospital, Sydney, NSW Australia ; Cancer Care Centre, St George Hospital, Sydney, NSW Australia
| | - David L Morris
- Department of Surgery, University of New South Wales, Sydney, New South Wales ; Department of Surgical Oncology, St George Hospital, Sydney, NSW Australia
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György B, Pálóczi K, Kovács A, Barabás E, Bekő G, Várnai K, Pállinger É, Szabó-Taylor K, Szabó TG, Kiss AA, Falus A, Buzás EI. Improved circulating microparticle analysis in acid-citrate dextrose (ACD) anticoagulant tube. Thromb Res 2013; 133:285-92. [PMID: 24360116 DOI: 10.1016/j.thromres.2013.11.010] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 09/13/2013] [Accepted: 11/18/2013] [Indexed: 12/22/2022]
Abstract
INTRODUCTION Recently extracellular vesicles (exosomes, microparticles also referred to as microvesicles and apoptotic bodies) have attracted substantial interest as potential biomarkers and therapeutic vehicles. However, analysis of microparticles in biological fluids is confounded by many factors such as the activation of cells in the blood collection tube that leads to in vitro vesiculation. In this study we aimed at identifying an anticoagulant that prevents in vitro vesiculation in blood plasma samples. MATERIALS AND METHODS We compared the levels of platelet microparticles and non-platelet-derived microparticles in platelet-free plasma samples of healthy donors. Platelet-free plasma samples were isolated using different anticoagulant tubes, and were analyzed by flow cytometry and Zymuphen assay. The extent of in vitro vesiculation was compared in citrate and acid-citrate-dextrose (ACD) tubes. RESULTS Agitation and storage of blood samples at 37 °C for 1 hour induced a strong release of both platelet microparticles and non-platelet-derived microparticles. Strikingly, in vitro vesiculation related to blood sample handling and storage was prevented in samples in ACD tubes. Importantly, microparticle levels elevated in vivo remained detectable in ACD tubes. CONCLUSIONS We propose the general use of the ACD tube instead of other conventional anticoagulant tubes for the assessment of plasma microparticles since it gives a more realistic picture of the in vivo levels of circulating microparticles and does not interfere with downstream protein or RNA analyses.
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Affiliation(s)
- Bence György
- Semmelweis University, Department of Genetics, Cell- and Immunobiology, Budapest, Hungary.
| | - Krisztina Pálóczi
- Semmelweis University, Department of Genetics, Cell- and Immunobiology, Budapest, Hungary
| | - Alexandra Kovács
- Semmelweis University, Department of Genetics, Cell- and Immunobiology, Budapest, Hungary
| | - Eszter Barabás
- Semmelweis University, Department of Laboratory Medicine, Budapest, Hungary
| | - Gabriella Bekő
- Semmelweis University, Department of Laboratory Medicine, Budapest, Hungary
| | - Katalin Várnai
- Semmelweis University, Department of Laboratory Medicine, Budapest, Hungary
| | - Éva Pállinger
- Semmelweis University, Department of Genetics, Cell- and Immunobiology, Budapest, Hungary
| | - Katalin Szabó-Taylor
- Semmelweis University, Department of Genetics, Cell- and Immunobiology, Budapest, Hungary
| | - Tamás G Szabó
- Semmelweis University, Department of Genetics, Cell- and Immunobiology, Budapest, Hungary
| | - Attila A Kiss
- Military Hospital, National Health Institute, Department of Obstetrics and Gynecology, Budapest, Hungary
| | - András Falus
- Semmelweis University, Department of Genetics, Cell- and Immunobiology, Budapest, Hungary
| | - Edit I Buzás
- Semmelweis University, Department of Genetics, Cell- and Immunobiology, Budapest, Hungary.
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Oppici E, Roncador A, Montioli R, Bianconi S, Cellini B. Gly161 mutations associated with Primary Hyperoxaluria Type I induce the cytosolic aggregation and the intracellular degradation of the apo-form of alanine:glyoxylate aminotransferase. Biochim Biophys Acta Mol Basis Dis 2013; 1832:2277-88. [PMID: 24055001 DOI: 10.1016/j.bbadis.2013.09.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 09/05/2013] [Accepted: 09/06/2013] [Indexed: 11/18/2022]
Abstract
Primary Hyperoxaluria Type I (PH1) is a severe rare disorder of metabolism due to inherited mutations on liver peroxisomal alanine:glyoxylate aminotransferase (AGT), a pyridoxal 5'-phosphate (PLP)-dependent enzyme whose deficiency causes the deposition of calcium oxalate crystals in the kidneys and urinary tract. PH1 is an extremely heterogeneous disease and there are more than 150 disease-causing mutations currently known, most of which are missense mutations. Moreover, the molecular mechanisms by which missense mutations lead to AGT deficiency span from structural, functional to subcellular localization defects. Gly161 is a highly conserved residue whose mutation to Arg, Cys or Ser is associated with PH1. Here we investigated the molecular bases of the AGT deficit caused by Gly161 mutations with expression studies in a mammalian cellular system paired with biochemical analyses on the purified recombinant proteins. Our results show that the mutations of Gly161 (i) strongly reduce the expression levels and the intracellular half-life of AGT, and (ii) make the protein in the apo-form prone to an electrostatically-driven aggregation in the cell cytosol. The coenzyme PLP, by shifting the equilibrium from the apo- to the holo-form, is able to reduce the aggregation propensity of the variants, thus partly decreasing the effect of the mutations. Altogether, these results shed light on the mechanistic details underlying the pathogenicity of Gly161 variants, thus expanding our knowledge of the enzymatic phenotypes leading to AGT deficiency.
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Affiliation(s)
- Elisa Oppici
- Department of Life Sciences and Reproduction, Section of Biological Chemistry, University of Verona, Strada Le Grazie 8 37134 Verona, Italy
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Dietrich D, Seiler F, Essmann F, Dodt G. Identification of the kinesin KifC3 as a new player for positioning of peroxisomes and other organelles in mammalian cells. Biochim Biophys Acta 2013; 1833:3013-3024. [PMID: 23954441 DOI: 10.1016/j.bbamcr.2013.08.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2013] [Revised: 07/19/2013] [Accepted: 08/02/2013] [Indexed: 01/25/2023]
Abstract
The attachment of organelles to the cytoskeleton and directed organelle transport is essential for cellular morphology and function. In contrast to other cell organelles like the endoplasmic reticulum or the Golgi apparatus, peroxisomes are evenly distributed in the cytoplasm, which is achieved by binding of peroxisomes to microtubules and their bidirectional transport by the microtubule motor proteins kinesin-1 (Kif5) and cytoplasmic dynein. KifC3, belonging to the group of C-terminal kinesins, has been identified to interact with the human peroxin PEX1 in a yeast two-hybrid screen. We investigated the potential involvement of KifC3 in peroxisomal transport. Interaction of KifC3 and the AAA-protein (ATPase associated with various cellular activities) PEX1 was confirmed by in vivo colocalization and by coimmunoprecipitation from cell lysates. Furthermore, knockdown of KifC3 using RNAi resulted in an increase of cells with perinuclear-clustered peroxisomes, indicating enhanced minus-end directed motility of peroxisomes. The occurrence of this peroxisomal phenotype was cell cycle phase independent, while microtubules were essential for phenotype formation. We conclude that KifC3 may play a regulatory role in minus-end directed peroxisomal transport for example by blocking the motor function of dynein at peroxisomes. Knockdown of KifC3 would then lead to increased minus-end directed peroxisomal transport and cause the observed peroxisomal clustering at the microtubule-organizing center.
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Affiliation(s)
- Denise Dietrich
- Interfaculty Institute of Biochemistry, Cell Biochemistry, University of Tuebingen, D-72076 Tuebingen, Germany
| | - Florian Seiler
- Interfaculty Institute of Biochemistry, Cell Biochemistry, University of Tuebingen, D-72076 Tuebingen, Germany
| | - Frank Essmann
- Interfaculty Institute of Biochemistry, Molecular Medicine, University of Tuebingen, D-72076 Tuebingen, Germany
| | - Gabriele Dodt
- Interfaculty Institute of Biochemistry, Cell Biochemistry, University of Tuebingen, D-72076 Tuebingen, Germany.
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Pang K, Li Y, Liu M, Meng Z, Yu Y. Inventory and general analysis of the ATP-binding cassette (ABC) gene superfamily in maize (Zea mays L.). Gene 2013; 526:411-28. [PMID: 23747399 DOI: 10.1016/j.gene.2013.05.051] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2012] [Revised: 05/24/2013] [Accepted: 05/27/2013] [Indexed: 12/28/2022]
Abstract
The metabolic functions of ATP-binding cassette (or ABC) proteins, one of the largest families of proteins presented in all organisms, have been investigated in many protozoan, animal and plant species. To facilitate more systematic and complicated studies on maize ABC proteins in the future, we present the first complete inventory of these proteins, including 130 open reading frames (ORFs), and provide general descriptions of their classifications, basic structures, typical functions, evolution track analysis and expression profiles. The 130 ORFs were assigned to eight subfamilies based on their structures and homological features. Five of these subfamilies consist of 109 proteins, containing transmembrane domains (TM) performing as transporters. The rest three subfamilies contain 21 soluble proteins involved in various functions other than molecular transport. A comparison of ABC proteins among nine selected species revealed either convergence or divergence in each of the ABC subfamilies. Generally, plant genomes contain far more ABC genes than animal genomes. The expression profiles and evolution track of each maize ABC gene were further investigated, the results of which could provide clues for analyzing their functions. Quantitative real-time polymerase chain reaction experiments (PCR) were conducted to detect induced expression in select ABC genes under several common stresses. This investigation provides valuable information for future research on stress tolerance in plants and potential strategies for enhancing maize production under stressful conditions.
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