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Zhang Y, Gu H, Shi Z, Chen W, Li A, Ye W, Zhang C, Yuan H, Zhao M. High prevalence of Helicobacter pylori mixed infections identified by multilocus sequence typing in Ningbo, China. Front Microbiol 2023; 14:1207878. [PMID: 37614601 PMCID: PMC10442550 DOI: 10.3389/fmicb.2023.1207878] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/25/2023] [Indexed: 08/25/2023] Open
Abstract
This study used multilocus sequence typing (MLST) to investigate the prevalence of Helicobacter pylori (H. pylori) mixed infections and H. pylori mixed infections involving unrelated strains; and determined the phylogeographic groups of H. pylori recovered from patients in Ningbo, China. A total of 156 H. pylori isolates were obtained from a convenience sample of 33 patients with culture-positive H. pylori infection. MLST was used to classify 150 H. pylori clinical isolates and 12 methodological control strains (6 clinical isolates and 6 strains of American Type Culture Collection H. pylori) into 43 and 12 sequence types (STs), respectively. In this study, 246 new alleles and 53 new STs were identified by MLST. The prevalence of mixed infections was 41% (11/27). The prevalence of H. pylori mixed infections involving unrelated strains was 46% (5/11) and the prevalence of H. pylori mixed infections involving completely unrelated strains (strains with all 7 housekeeping genes different) was 36% (4/11). A phylogenetic tree was created to determine the evolutionary relationships between different strains. The STs in this study were clustered within the hspEAsia subgroup (98%) and hpEurope group (2%). H. pylori mixed infections were common in Ningbo, China. The H. pylori isolates belonging to the hpEurope group were recovered from three different biopsy samples in a native Chinese patient. Most of H. pylori strains colonizing the antrum, corpus, and duodenum bulb were homologous.
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Affiliation(s)
- Yongxiong Zhang
- Health Science Center, Ningbo University, Ningbo, Zhejiang, China
| | - Haiying Gu
- Health Science Center, Ningbo University, Ningbo, Zhejiang, China
- Laboratory of Gastroenterology, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang, China
| | - Zhouhong Shi
- Department of Gastrology, Ninghai First Hospital, Ningbo, Zhejiang, China
| | - Weiqin Chen
- Department of Gastrology, Ninghai First Hospital, Ningbo, Zhejiang, China
| | - Airu Li
- Laboratory of Gastroenterology, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang, China
| | - Weiwei Ye
- Department of Gastrology, Ninghai First Hospital, Ningbo, Zhejiang, China
| | - Cheng Zhang
- Department of Gastrology, Ninghai First Hospital, Ningbo, Zhejiang, China
| | - Huikun Yuan
- Laboratory of Gastroenterology, The Affiliated Hospital of Medical School, Ningbo University, Ningbo, Zhejiang, China
| | - Mingming Zhao
- Health Science Center, Ningbo University, Ningbo, Zhejiang, China
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2
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Hubbell PJ, Roth B, Block JE. Comparative Evaluation of Mineralized Bone Allografts for Spinal Fusion Surgery. J Funct Biomater 2023; 14:384. [PMID: 37504879 PMCID: PMC10381653 DOI: 10.3390/jfb14070384] [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: 06/12/2023] [Revised: 07/19/2023] [Accepted: 07/19/2023] [Indexed: 07/29/2023] Open
Abstract
The primary objective of this review is to evaluate whether the degree of processing and the clinical utility of commercially available mineralized bone allografts for spine surgery meet the 2020 US Food and Drug Administration's (FDA) guideline definitions for minimal manipulation and homologous use, respectively. We also assessed the consistency of performance of these products by examining the comparative postoperative radiographic fusion rates following spine surgery. Based on the FDA's criteria for determining whether a structural allograft averts regulatory oversight and classification as a drug/device/biologic, mineralized bone allografts were judged to meet the Agency's definitional descriptions for minimal manipulation and homologous use when complying with the American Association of Tissue Banks' (AATB) accredited guidelines for bone allograft harvesting, processing, storing and transplanting. Thus, these products do not require FDA medical device clearance. Radiographic fusion rates achieved with mineralized bone allografts were uniformly high (>85%) across three published systematic reviews. Little variation was found in the fusion rates irrespective of anatomical location, allograft geometry, dimensions or indication, and in most cases, the rates were similar to those for autologous bone alone. Continued utilization of mineralized bone allografts should be encouraged across all spine surgery applications where supplemental grafts and/or segmental stability are required to support mechanically solid arthrodeses.
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Affiliation(s)
- Paul J Hubbell
- Southern Pain and Neurologic, 3939 Houma Blvd., Building 2, Suite 6, Metairie, LA 70006, USA
| | - Brandon Roth
- AZ Pain Doctors, 14420 W Meeker Blvd., Building A, Ste. 211, Sun City West, AZ 85375, USA
| | - Jon E Block
- Independent Consultant, 2210 Jackson Street, Suite 401, San Francisco, CA 94115, USA
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3
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Bureerug TC, Kanokudom S, Suntronwong N, Yorsaeng R, Assawakosri S, Thongmee T, Poovorawan Y. Evaluation of Anti-S1 IgA Response to Different COVID-19 Vaccination Regimens. Vaccines (Basel) 2023; 11:1117. [PMID: 37376506 DOI: 10.3390/vaccines11061117] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/10/2023] [Accepted: 06/12/2023] [Indexed: 06/29/2023] Open
Abstract
IgA plays a crucial role in early virus neutralization. To identify the IgA stimulation by COVID-19 vaccine, this study aimed to evaluate the level of anti-S1 IgA in the serum of participants immunized with different COVID-19 vaccination regimens. Sera from 567 eligible participants vaccinated with two, three, or four doses of different types of COVID-19 vaccine were recruited. Post-vaccine anti-S1 IgA responses significantly varied according to vaccine type and regimen. The finding showed that heterologous boosters, especially after priming with an inactivated vaccine, elicited higher IgA levels than homologous boosters. Vaccination with SV/SV/PF produced the highest IgA level among all the immunization regimens after either two, three, or four doses. The different routes and amounts of vaccine used for vaccination showed non-significant differences in IgA levels. After the third dose of immunization for 4 months, the level of IgA decreased significantly from the level found on day 28 in both SV/SV/AZ and SV/SV/PF groups. In conclusion, our study showed that heterologous booster regimens for COVID-19 elicited higher anti-S1 IgA levels in serum, especially after priming with inactivated vaccine. The presented anti-S1 IgA may have advantages in preventing SARS-CoV-2 infection and severe disease.
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Affiliation(s)
- Teeraporn C Bureerug
- Department of Microbiology, Faculty of Medicine, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Sitthichai Kanokudom
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
- Center of Excellence in Osteoarthritis and Musculoskeleton, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok 10330, Thailand
| | - Nungruthai Suntronwong
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Ritthideach Yorsaeng
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Suvichada Assawakosri
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
- Center of Excellence in Osteoarthritis and Musculoskeleton, Faculty of Medicine, Chulalongkorn University, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok 10330, Thailand
| | - Thanunrat Thongmee
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Department of Pediatrics, Faculty of Medicine, Chulalongkorn University, Bangkok 10330, Thailand
- Fellow of the Royal Society of Thailand, The Royal Society of Thailand, Sanam Sueapa, Dusit, Bangkok 1030, Thailand
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Kurokawa T, Yonekura S, Gotoh M, Okano M, Maekawa Y, Okubo K, Okamoto Y. Efficacy of Japanese cedar pollen sublingual immunotherapy tablets for Japanese cypress pollinosis. J Allergy Clin Immunol Glob 2023; 2:100075. [PMID: 37780797 PMCID: PMC10509998 DOI: 10.1016/j.jacig.2022.10.006] [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] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 10/11/2022] [Accepted: 10/19/2022] [Indexed: 10/03/2023]
Abstract
Background We previously demonstrated the efficacy of Japanese cedar (JC) pollen sublingual immunotherapy (SLIT) tablets for treating seasonal allergic rhinitis in a clinical trial (trial no. 206-2-1) that covered 5 pollen dispersal seasons from 2015 to 2019. Objective Our aim was to perform post hoc analysis of the 206-2-1 trial data to evaluate the efficacy of JC pollen SLIT tablets for patients with rhinitis induced by pollen from Japanese cypress (JCY), a related Cupressaceae species that has a pollen dispersal season overlapping with that of JC. Methods Data were analyzed for 240 patients who received placebo during the first pollen dispersal season in 2015, were then rerandomized to receive JC SLIT tablets (the PA group) or placebo (the PP group) for 18 months (the 2016 and 2017 dispersal seasons), and were observed untreated for 2 years (the 2018 and 2019 dispersal seasons). The PA and PP groups were assigned to "high" and "low" subgroups if their rhinitis symptoms were exacerbated/did not change or decreased, respectively, during the peak JCY pollen dispersal period in 2015. The mean total nasal symptom and medication scores and other outcomes were compared for the high-PP, high-PA, low-PP, and low-PA groups during the 2016 to 2019 peak JCY pollen dispersal periods. Results The mean total nasal symptom and medication scores were significantly lower for the high-PA and low-PA groups than for the corresponding PP groups over the 4 years of treatment and observation. JCY pollen-specific IgE levels increased in both PA groups. Conclusion JC pollen SLIT tablets effectively suppressed JCY pollinosis symptoms, supporting the clinical relevance of immunologic cross-reactivity between JC and JCY allergens.
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Affiliation(s)
- Tomoya Kurokawa
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
- Clinical Research Center, Chiba University Hospital, Chiba, Japan
| | - Syuji Yonekura
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Minoru Gotoh
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Mitsuhiro Okano
- Department of Otorhinolaryngology, International University of Health and Welfare, Chiba, Japan
| | - Yuriko Maekawa
- Department of Medical Affairs, Torii Pharmaceutical Co, Ltd, Tokyo, Japan
| | - Kimihiro Okubo
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Yoshitaka Okamoto
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
- Chiba Rousai Hospital, Chiba, Japan
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5
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Gotoh M, Kurokawa T, Yonekura S, Okano M, Maekawa Y, Okamoto Y, Okubo K. Same dose of Japanese cedar pollen sublingual immunotherapy tablets is optimal for allergic rhinitis caused by either Japanese cedar or Japanese cypress pollen. Allergy 2023; 78:563-568. [PMID: 36106517 PMCID: PMC10086994 DOI: 10.1111/all.15514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 09/02/2022] [Accepted: 09/12/2022] [Indexed: 02/01/2023]
Affiliation(s)
- Minoru Gotoh
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Tomoya Kurokawa
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.,Clinical Research Center, Chiba University Hospital, Chiba, Japan
| | - Syuji Yonekura
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Mitsuhiro Okano
- Department of Otorhinolaryngology, International University of Health and Welfare, Chiba, Japan
| | - Yuriko Maekawa
- Department of Medical Affairs, Torii Pharmaceutical Co., Ltd, Tokyo, Japan
| | - Yoshitaka Okamoto
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.,Chiba Rousai Hospital, Chiba, Japan
| | - Kimihiro Okubo
- Department of Otolaryngology, Head and Neck Surgery, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
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Khachatryan H, Olszowy B, Barrero CA, Gordon J, Perez-Leal O. Identification of Inhibitors of Tubulin Polymerization Using a CRISPR-Edited Cell Line with Endogenous Fluorescent Tagging of β-Tubulin and Histone H1. Biomolecules 2023; 13:249. [PMID: 36830618 PMCID: PMC9953358 DOI: 10.3390/biom13020249] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/25/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023] Open
Abstract
Tubulin is a protein that plays a critical role in maintaining cellular structure and facilitating cell division. Inhibiting tubulin polymerization has been shown to be an effective strategy for inhibiting the proliferation of cancer cells. In the past, identifying compounds that could inhibit tubulin polymerization has required the use of in vitro assays utilizing purified tubulin or immunofluorescence of fixed cells. This study presents a novel approach for identifying tubulin polymerization inhibitors using a CRISPR-edited cell line that expresses fluorescently tagged β-tubulin and a nuclear protein, enabling the visualization of tubulin polymerization dynamics via high-content imaging analysis (HCI). The cells were treated with known tubulin polymerization inhibitors, colchicine, and vincristine, and the resulting phenotypic changes indicative of tubulin polymerization inhibition were confirmed using HCI. Furthermore, a library of 429 kinase inhibitors was screened, resulting in the identification of three compounds (ON-01910, HMN-214, and KX2-391) that inhibit tubulin polymerization. Live cell tracking analysis confirmed that compound treatment leads to rapid tubulin depolymerization. These findings suggest that CRISPR-edited cells with fluorescently tagged endogenous β-tubulin can be utilized to screen large compound libraries containing diverse chemical families for the identification of novel tubulin polymerization inhibitors.
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Affiliation(s)
| | | | | | | | - Oscar Perez-Leal
- Department of Pharmaceutical Sciences, Moulder Center for Drug Discovery, School of Pharmacy, Temple University, Philadelphia, PA 19140, USA
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Gelanew T, Wassie L, Mulu A, Wondwossen L, Abebe M, Mihret A, Abdissa A. Is heterologous prime-boost COVID-19 vaccination a concern or an opportunity for Ethiopia? Front Public Health 2023; 10:1046546. [PMID: 36777764 PMCID: PMC9909475 DOI: 10.3389/fpubh.2022.1046546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/28/2022] [Indexed: 01/27/2023] Open
Affiliation(s)
- Tesfaye Gelanew
- Armauer Hansen Research Institute, Addis Ababa, Ethiopia,*Correspondence: Tesfaye Gelanew ✉
| | - Liya Wassie
- Armauer Hansen Research Institute, Addis Ababa, Ethiopia
| | | | | | - Markos Abebe
- Armauer Hansen Research Institute, Addis Ababa, Ethiopia
| | - Adane Mihret
- Armauer Hansen Research Institute, Addis Ababa, Ethiopia
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Wanlapakorn N, Suntronwong N, Phowatthanasathian H, Yorsaeng R, Vichaiwattana P, Thongmee T, Auphimai C, Srimuan D, Thatsanatorn T, Assawakosri S, Kanokudom S, Poovorawan Y. Safety and immunogenicity of heterologous and homologous inactivated and adenoviral-vectored COVID-19 vaccine regimens in healthy adults: a prospective cohort study. Hum Vaccin Immunother 2022; 18:2029111. [PMID: 35209809 PMCID: PMC8993087 DOI: 10.1080/21645515.2022.2029111] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [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] [Indexed: 01/02/2023] Open
Abstract
In light of intermittent supply shortages of individual vaccines and evidence of rare but serious adverse events after vaccination, heterologous regimens for COVID-19 vaccines have gained significant interest. This study aims to assess the reactogenicity and immunogenicity of the heterologous adenoviral vector (ChAdOx1-S, AstraZeneca; hereafter referred to as AZ) and the inactivated vaccine regimen (CoronaVac; hereafter referred to as CV) in healthy Thai adults immunized between June and September 2021. Our study showed that adverse events following homologous CV-CV and AZ-AZ, and heterologous CV-AZ and AZ-CV combinations, were mild and well tolerated overall. Receptor-binding domain (RBD)-specific antibody responses and neutralizing activities against wild-type and variants of concern after two-dose vaccination were higher in the heterologous CV-AZ and homologous AZ-AZ groups compared to the CV-CV and AZ-CV groups. Conversely, the spike-specific IgA response was detected only in the CV-AZ group after two doses of vaccination. The total interferon gamma response was detected in both the CV-AZ and AZ-CV groups after the two-dose vaccination. Given the shorter completion time of two doses, heterologous CoronaVac followed by ChAdOx1-S can be considered as an alternative regimen to homologous efficacy-proven ChAdOx1-S in countries with circulating variants. Additional studies on the efficacy and durability of immune responses induced by heterologous vaccine regimens are warranted.
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Affiliation(s)
- Nasamon Wanlapakorn
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Nungruthai Suntronwong
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Harit Phowatthanasathian
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Ritthideach Yorsaeng
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Preeyaporn Vichaiwattana
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Thanunrat Thongmee
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Chompoonut Auphimai
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Donchida Srimuan
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Thaksaporn Thatsanatorn
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Suvichada Assawakosri
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Sitthichai Kanokudom
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Yong Poovorawan
- Center of Excellence in Clinical Virology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,FRS(T), The Royal Society of Thailand, Sanam Sueapa, Dusit, Bangkok, Thailand
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Xu X, Hong Y, Chen E, Wang Y, Ma B, Li J, Su W, Zhou Y, Zhang M. Antibodies Induced by Homologous or Heterologous Inactivated (CoronaVac/BBIBP-CorV) and Recombinant Protein Subunit Vaccines (ZF2001) Dramatically Enhanced Inhibitory Abilities against B.1.351, B.1.617.2, and B.1.1.529 Variants. Vaccines (Basel) 2022; 10. [PMID: 36560520 DOI: 10.3390/vaccines10122110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022] Open
Abstract
Safe and effective vaccines for Corona Virus Disease 2019 (COVID-19) can prevent the virus from infecting human populations and treat patients infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). In this study, we discuss the inhibitory abilities of primary and booster vaccine-induced antibodies inhibitory ability toward the SARS-CoV-2 wild-type strain, as well as B.1.1.7, B.1.351, P.1, B.1.617.2, and B.1.1.529. We confirmed these antibodies had the strongest inhibitory effects on the wild-type strain and cross-inhibition activities against other mutant strains after two inactivated vaccine doses. However, the B.1.351, B.1.617.2 and B.1.1.529 mutants exhibit antibody resistance in the vaccine serum. Antibodies induced by homologous inactivated vaccines (n = 92) presented more effective inhibition against tested SARS-CoV-2 strains (p < 0.0001), especially B.1.351, B.1.617.2, and B.1.1.529 mutant strains, which had strong immune escape characteristics. In addition, a heterologous booster vaccination (n = 50) of a protein subunit vaccine ZifiVax (ZF2001) significantly restored humoral immune responses and even showed an increasing response against wild-type, B.1.351, B.1.617.2, and B.1.1.529 than homologous inactivated vaccines. Our analysis of the humoral immune response elicited by the different vaccine regimens, including inhibiting antibodies, indicated that a booster, whether homologous or heterologous, could be essential for achieving greater efficacy against SARS-CoV-2.
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van Wagensveld L, van Baal JOAM, Timmermans M, Gaillard D, Borghuis L, Coffelt SB, Rosenberg EH, Lok CAR, Nijman HW, Kooreman LFS, Sanders J, de Bruijn M, Wessels LFA, van der Wiel R, Rausch C, Broeks A, Kruitwagen RFPM, van der Aa MA, Sonke GS, Schouten PC, Van de Vijver KK, Horlings HM. Homologous Recombination Deficiency and Cyclin E1 Amplification Are Correlated with Immune Cell Infiltration and Survival in High-Grade Serous Ovarian Cancer. Cancers (Basel) 2022; 14:cancers14235965. [PMID: 36497449 PMCID: PMC9738162 DOI: 10.3390/cancers14235965] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/24/2022] [Accepted: 11/28/2022] [Indexed: 12/07/2022] Open
Abstract
BACKGROUND How molecular profiles are associated with tumor microenvironment (TME) in high-grade serous ovarian cancer (HGSOC) is incompletely understood. Therefore, we analyzed the TME and molecular profiles of HGSOC and assessed their associations with overall survival (OS). METHODS Patients with advanced-stage HGSOC treated in three Dutch hospitals between 2008-2015 were included. Patient data were collected from medical records. BRCA1/2 mutation, BRCA1 promotor methylation analyses, and copy number variations were used to define molecular profiles. Immune cells were assessed with immunohistochemical staining. RESULTS 348 patients were categorized as BRCA mutation (BRCAm) (BRCAm or promotor methylation) (30%), non-BRCA mutated HRD (19%), Cyclin E1 (CCNE1)-amplification (13%), non-BRCAmut HRD and CCNE1-amplification (double classifier) (20%), and no specific molecular profile (NSMP) (18%). BRCAm showed highest immune cell densities and CCNE1-amplification lowest. BRCAm showed the most favorable OS (52.5 months), compared to non-BRCAmut HRD (41.0 months), CCNE1-amplification (28.0 months), double classifier (27.8 months), and NSMP (35.4 months). Higher immune cell densities showed a favorable OS compared to lower, also within the profiles. CD8+, CD20+, and CD103+ cells remained associated with OS in multivariable analysis. CONCLUSIONS Molecular profiles and TME are associated with OS. TME differs per profile, with higher immune cell densities showing a favorable OS, even within the profiles. HGSOC does not reflect one entity but comprises different entities based on molecular profiles and TME.
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Affiliation(s)
- Lilian van Wagensveld
- Department of Research and Development, Netherlands Comprehensive Cancer Organization (IKNL), 3511 DT Utrecht, The Netherlands
- Department of Molecular Pathology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
- GROW, School for Oncology and Reproduction, 6229 HX Maastricht, The Netherlands
- Correspondence:
| | - Juliette O. A. M. van Baal
- Department of Gynecology, Center for Gynecologic Oncology Amsterdam (CGOA), 1066 CX Amsterdam, The Netherlands
| | - Maite Timmermans
- Department of Obstetrics and Gynecology, Leiden University Medical Centre, 2333 ZA Leiden, The Netherlands
| | - Duco Gaillard
- Department of Molecular Carcinogenesis, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
| | - Lauri Borghuis
- Department of Molecular Pathology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
| | - Seth B. Coffelt
- Division of Tumor Biology & Immunology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
- Institute of Cancer Sciences, University of Glasgow, Glasgow G12 8QQ, UK
- Cancer Research UK, Beatson Institute, Glasgow G61 1BD, UK
| | - Efraim H. Rosenberg
- Department of Pathology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
| | - Christianne A. R. Lok
- Department of Gynecology, Center for Gynecologic Oncology Amsterdam (CGOA), 1066 CX Amsterdam, The Netherlands
| | - Hans W. Nijman
- Department of Obstetrics and Gynecology, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands
| | - Loes F. S. Kooreman
- GROW, School for Oncology and Reproduction, 6229 HX Maastricht, The Netherlands
- Department of Pathology, Maastricht University Medical Centre, 6229 HX Maastricht, The Netherlands
| | - Joyce Sanders
- Department of Pathology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
| | - Marco de Bruijn
- Department of Obstetrics and Gynecology, University Medical Center Groningen, University of Groningen, 9700 RB Groningen, The Netherlands
| | - Lodewyk F. A. Wessels
- Department of Molecular Carcinogenesis, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
| | - Rianne van der Wiel
- Department of Molecular Pathology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
| | - Christian Rausch
- Department of Pathology, VU University Medical Center, 1081 HV Amsterdam, The Netherlands
- BioLizard nv, 9000 Ghent, Belgium
| | - Annegien Broeks
- Core Facility Molecular Pathology & Biobanking, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
| | - Roy F. P. M. Kruitwagen
- GROW, School for Oncology and Reproduction, 6229 HX Maastricht, The Netherlands
- Department of Obstetrics and Gynecology, Maastricht University Medical Centre, 6229 HX Maastricht, The Netherlands
| | - Maaike A. van der Aa
- Department of Research and Development, Netherlands Comprehensive Cancer Organization (IKNL), 3511 DT Utrecht, The Netherlands
| | - Gabe S. Sonke
- Department of Medical Oncology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
| | - Philip C. Schouten
- Department of Molecular Pathology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
| | - Koen K. Van de Vijver
- Department of Gynecology, Center for Gynecologic Oncology Amsterdam (CGOA), 1066 CX Amsterdam, The Netherlands
- Department of Pathology & Cancer Research Institute Ghent (CRIG), Ghent University Hospital, 9000 Ghent, Belgium
| | - Hugo M. Horlings
- Department of Molecular Pathology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
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Ai J, Zhang Y, Zhang H, Zhang Q, Fu Z, Lin K, Song J, Zhao Y, Fan M, Wang H, Zhou Y, Chen X, Qiu C, Zhang W. Safety and immunogenicity of a third-dose homologous BBIBP-CorV boosting vaccination: interim results from a prospective open-label study. Emerg Microbes Infect 2022; 11:639-647. [PMID: 35034582 PMCID: PMC8881062 DOI: 10.1080/22221751.2022.2025746] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [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] [Indexed: 01/07/2023]
Abstract
A COVID-19 booster vaccination is being comprehensively evaluated globally due to the emerging concern of reduced protection rate of previous vaccination and circulating Variants of Concern (VOC). But the safety and immunogenicity of homologous BBIBP-CorV boosting vaccination are yet to be thoroughly evaluated. We conducted this prospective, open-label study in Huashan Hospital using a third 6.5U BBIBP-CorV administered at an interval of 4–8 months following the previous two doses in healthy adults. Safety, anti-RBD response and neutralizing titers against SARS-CoV-2 and VOCs were examined. Sixty-three and forty participants entered the booster and the control group, respectively. A significant increase in IFN-γ SFU per million PBMCs was observed on day 14 against N peptide (20 vs. 5, P < 0.001). On day 14, pVNT GMTs increased over 15 folds of the baseline levels against prototype to reach 404.54 titers and over 9–13 folds against 4 VOCs and continuously increased by day 28. sVNT GMTs increased 112.51 and 127.45 folds by days 14 and 28 compared to the baseline level. Median anti-RBD antibody and IgG level significantly increased from 11.12 to 2607.50 BAU/ml and 4.07 to 619.20 BAU/ml on day 14. On day 14, females showed a significantly higher cell-mediated immune response against S1 peptide. The 7–8 months interval group had a higher humoral response than the 4–6 months interval group. No severe adverse event was reported. A third homologous BBIBP-CorV boosting vaccination was safe and highly immunogenic for healthy adults and broadened participants’ immunity against VOCs.
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Affiliation(s)
- Jingwen Ai
- Department of Infectious Diseases, National Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Yi Zhang
- Department of Infectious Diseases, National Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Haocheng Zhang
- Department of Infectious Diseases, National Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Qiran Zhang
- Department of Infectious Diseases, National Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Zhangfan Fu
- Department of Infectious Diseases, National Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Ke Lin
- Department of Infectious Diseases, National Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Jieyu Song
- Department of Infectious Diseases, National Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Yuanhan Zhao
- Department of Infectious Diseases, National Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Mingxiang Fan
- Department of Infectious Diseases, National Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Hongyu Wang
- Department of Infectious Diseases, National Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Yang Zhou
- Department of Infectious Diseases, National Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Xiaohua Chen
- Department of Infectious Diseases, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, People's Republic of China
| | - Chao Qiu
- Department of Infectious Diseases, National Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
| | - Wenhong Zhang
- Department of Infectious Diseases, National Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, People's Republic of China.,National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, People's Republic of China.,Key Laboratory of Medical Molecular Virology (MOE/MOH) Shanghai Medical College, Fudan University, Shanghai, People's Republic of China
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12
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Abstract
Omicron (B.1.1.529) was first detected in a sample collected in Botswana on November 11, 2021, and has rapidly replaced Delta as the dominant global variant given the robust transmissibility. Moreover, it displays a lower virulence than other variants. However, the pathogenicity of Omicron appears to be underestimated in view of the increasing levels of herd immunity through natural infection or vaccination. Additionally, the volume of hospitalizations and deaths increase in proportion to the number of cases due to the high transmissibility of Omicron. Therefore, vaccination remains an important public health priority. Notably, a series of important mutations in the Omicron spike protein, especially in the receptor-binding domain and N-terminal domain, appears to be associated with immune escape capacity, reducing the willingness of people to receive vaccines. Herein, we provide an in-depth discussion to assess the effectiveness of the second and third vaccination against Omicron variant. On the one hand, the two-dose vaccination program adopted by many countries is insufficient to prevent Omicron infection given the mutations correlated with immune escape and the decline in vaccine efficacy over time. On the other hand, booster dose significantly increases the protective efficacy against Omicron infection. Most importantly, heterologous third dose vaccination induces a more robust immune response than homologous booster dose. Therefore, under the special background of this pandemic, there is an urgent need to accelerate the third dose of vaccination, especially providing better booster vaccination strategies, to combat emerging Omicron variant.
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13
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Klastrup V, Stærke NB, Søgaard OS. Heterologous COVID-19 vaccination as a strategy to accelerate mass immunization. Clin Microbiol Infect 2022; 28:1316-1318. [PMID: 35843563 PMCID: PMC9288237 DOI: 10.1016/j.cmi.2022.06.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/27/2022] [Accepted: 06/30/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Vibeke Klastrup
- Department of Infectious Diseases, Aarhus University Hospital, Denmark
| | | | - Ole Schmeltz Søgaard
- Department of Infectious Diseases, Aarhus University Hospital, Denmark; Department of Clinical Medicine, Aarhus University, Denmark.
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14
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Cheng H, Peng Z, Si S, Alifu X, Zhou H, Chi P, Zhuang Y, Mo M, Yu Y. Neutralization Activity against SARS-CoV-2 Variants after Booster Vaccination in Populations without COVID-19: A Meta-Analysis. Vaccines (Basel) 2022; 10:vaccines10071101. [PMID: 35891263 PMCID: PMC9322873 DOI: 10.3390/vaccines10071101] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 07/06/2022] [Accepted: 07/06/2022] [Indexed: 02/04/2023] Open
Abstract
A number of SARS-CoV-2 variants that have evolved to have significant immune escape have emerged worldwide since the COVID-19 outbreak. The efficacy of prime vaccination is waning with the evolution of SARS-CoV-2, and the necessity of booster doses is more and more prominent. Therefore, this study aimed to compare the neutralization activity against the wild type and variants (Beta, Delta, and Omicron) in different prime–boost vaccination regimens. Electronic databases including PubMed, the Cochrane Library, Embase, medRxiv, Wanfang and CNKI were used to retrieve original studies. A total of 16 studies, 9 prime–boost vaccination regimes, and 3134 subjects were included in the meta-analysis and random effect models were used to estimate pooled neutralization titers. The neutralization activity against SARS-CoV-2 showed a significant decline with the evolution of the virus, especially in the populations primed with inactivated vaccines. For homologous immunization, only the populations boosted with mRNA vaccines consistently had a significant rise in neutralization titers (Beta: MD = 0.97; Delta: MD = 1.33; Omicron: MD = 0.74). While the heterologous immunization was more effective, the increment of neutralization titers against wild type, Beta, Delta and Omicron was 1.65 (95% CI: 1.32–1.96), 1.03 (95% CI: 0.53–1.54), 1.46 (95% CI: 1.07–1.85) and 1.15 (95% CI: 0.68–1.61), respectively. With the evolution of SARS-CoV-2, the effectiveness of prime immunization is waning. Although the administration of the booster dose could ameliorate the neutralization titers, homologous immunization regimens were gradually losing their effectiveness. Therefore, a heterologous booster dose is required, especially in populations primed with inactivated vaccines.
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Affiliation(s)
- Haoyue Cheng
- Department of Public Health and Department of Anesthesiology, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health and Medicine, Zhejiang University, Hangzhou 310058, China
| | - Zhicheng Peng
- Department of Public Health and Department of Anesthesiology, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health and Medicine, Zhejiang University, Hangzhou 310058, China
| | - Shuting Si
- Department of Public Health and Department of Anesthesiology, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health and Medicine, Zhejiang University, Hangzhou 310058, China
| | - Xialidan Alifu
- Department of Public Health and Department of Anesthesiology, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health and Medicine, Zhejiang University, Hangzhou 310058, China
| | - Haibo Zhou
- Department of Public Health and Department of Anesthesiology, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health and Medicine, Zhejiang University, Hangzhou 310058, China
| | - Peihan Chi
- Department of Public Health and Department of Anesthesiology, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health and Medicine, Zhejiang University, Hangzhou 310058, China
| | - Yan Zhuang
- Department of Public Health and Department of Anesthesiology, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health and Medicine, Zhejiang University, Hangzhou 310058, China
| | - Minjia Mo
- Department of Public Health and Department of Anesthesiology, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health and Medicine, Zhejiang University, Hangzhou 310058, China
| | - Yunxian Yu
- Department of Public Health and Department of Anesthesiology, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health and Medicine, Zhejiang University, Hangzhou 310058, China
- Correspondence:
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15
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Cheng H, Peng Z, Si S, Alifu X, Zhou H, Chi P, Zhuang Y, Mo M, Yu Y. Immunogenicity and Safety of Homologous and Heterologous Prime-Boost Immunization with COVID-19 Vaccine: Systematic Review and Meta-Analysis. Vaccines (Basel) 2022; 10:798. [PMID: 35632554 PMCID: PMC9142990 DOI: 10.3390/vaccines10050798] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [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: 04/13/2022] [Revised: 05/10/2022] [Accepted: 05/11/2022] [Indexed: 12/13/2022] Open
Abstract
A prime-boost strategy of COVID-19 vaccines brings hope to limit the spread of SARS-CoV-2, while the immunogenicity of the vaccines is waning over time. Whether a booster dose of vaccine is needed has become a widely controversial issue. However, no published meta-analysis has focused on the issue. Therefore, this study assessed the immunogenicity and safety of the different combinations of prime-boost vaccinations. Electronic databases including PubMed, the Cochrane Library, Embase, medRxiv, Wanfang and CNKI were used to retrieve the original studies. A total of 28 studies, 9 combinations of prime-boost vaccinations and 5870 subjects were included in the meta-analysis, and random effect models were used to estimate pooled immunogenicity and safety. The immunity against COVID-19 after the prime vaccination waned over time, especially in the populations primed with inactivated vaccines, in which the seropositive rate of antibodies was only 28% (95% CI: 17-40%). Booster vaccination could significantly increase the antibody responses, and heterologous immunization was more effective than homologous immunization (neutralization titers: 1.65 vs. 1.27; anti-RBD IgG: 1.85 vs. 1.15); in particular, the combination of inactivated-mRNA vaccines had the highest antibody responses (neutralization titers: MRAW = 3.64, 95% CI: 3.54-3.74; anti-RBD IgG: 3.73, 95% CI: 3.59-3.87). Moreover, compared with the initial two doses of vaccines, a booster dose did not induce additional or severe adverse events. The administration of the booster dose effectively recalled specific immune responses to SARS-CoV-2 and increased antibody levels, especially in heterologous immunization. Considering the long-term immunogenicity and vaccine equity, we suggest that now, only individuals primed with inactivated vaccines require a booster dose.
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Affiliation(s)
- Haoyue Cheng
- Department of Public Health and Department of Anesthesiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Zhicheng Peng
- Department of Public Health and Department of Anesthesiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Shuting Si
- Department of Public Health and Department of Anesthesiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Xialidan Alifu
- Department of Public Health and Department of Anesthesiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Haibo Zhou
- Department of Public Health and Department of Anesthesiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Peihan Chi
- Department of Public Health and Department of Anesthesiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Yan Zhuang
- Department of Public Health and Department of Anesthesiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Minjia Mo
- Department of Public Health and Department of Anesthesiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou 310027, China
| | - Yunxian Yu
- Department of Public Health and Department of Anesthesiology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, China; (H.C.); (Z.P.); (S.S.); (X.A.); (H.Z.); (P.C.); (Y.Z.); (M.M.)
- Department of Epidemiology & Health Statistics, School of Public Health, School of Medicine, Zhejiang University, Hangzhou 310027, China
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16
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Mahasirimongkol S, Khunphon A, Kwangsukstid O, Sapsutthipas S, Wichaidit M, Rojanawiwat A, Wichuckchinda N, Puangtubtim W, Pimpapai W, Soonthorncharttrawat S, Wanitchang A, Jongkaewwattana A, Srisutthisamphan K, Phainupong D, Thawong N, Piboonsiri P, Sawaengdee W, Somsaard T, Ritthitham K, Chumpol S, Pinyosukhee N, Wichajarn R, Dhepakson P, Iamsirithaworn S, Phumiamorn S. The Pilot Study of Immunogenicity and Adverse Events of a COVID-19 Vaccine Regimen: Priming with Inactivated Whole SARS-CoV-2 Vaccine (CoronaVac) and Boosting with the Adenoviral Vector (ChAdOx1 nCoV-19) Vaccine. Vaccines (Basel) 2022; 10:vaccines10040536. [PMID: 35455285 PMCID: PMC9028748 DOI: 10.3390/vaccines10040536] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [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: 12/30/2021] [Revised: 03/23/2022] [Accepted: 03/24/2022] [Indexed: 12/28/2022] Open
Abstract
In response to the SARS-CoV-2 Delta variant, which partially escaped the vaccine-induced immunity provided by two doses of vaccination with CoronaVac (Sinovac), the National Vaccine Committee recommended the heterologous CoronaVac-ChAdOx1 (Oxford−AstraZeneca), a prime−boost vaccine regimen. This pilot study aimed to describe the immunogenicity and adverse events of the heterologous CoronaVac-ChAdOx1 regimen, in comparison with homologous CoronaVac, and homologous ChAdOx1. Between May and August 2021, we recruited a total of 354 participants from four vaccination groups: the CoronaVac-ChAdOx1 vaccinee (n = 155), the homologous CoronaVac vaccinee (n = 32), the homologous ChAdOx1 vaccinee (n = 47), and control group of COVID-19 patients (n = 120). Immunogenicity was evaluated by measuring the level of IgG antibodies against the receptor-binding domain (anti-SRBD) of the SARS-CoV-2 spike protein S1 subunit and the level of neutralizing antibodies (NAbs) against variants of concern (VOCs) using the plaque reduction neutralization test (PRNT) and pseudovirus neutralization test (pVNT). The safety profile was recorded by interviewing at the 1-month visit after vaccination. The anti-SRBD level after the second booster dose of the CoronaVac-ChAdOx1 group at 2 weeks was higher than 4 weeks. At 4 weeks after the second booster dose, the anti-SRBD level in the CoronaVac-ChAdOx1 group was significantly higher than either homologous CoronaVac, the homologous ChAdOx1 group, and Control group (p < 0.001). In the CoronaVac-ChAdOx1 group, the PRNT50 level against the wild-type (434.5 BAU/mL) was the highest; followed by Alpha variant (80.4), Delta variant (67.4), and Beta variant (19.8). The PVNT50 level was also found to be at its highest against the wild-type (432.1); followed by Delta variants (178.3), Alpha variants (163.9), and Beta variant (42.2), respectively. The AEs in the CoronaVac-ChAdOx1 group were well tolerated and generally unremarkable. The CoronaVac-ChAdOx1 heterologous regimen induced higher immunogenicity and a tolerable safety profile. In a situation when only CoronaVac-ChAdOx1 vaccines are available, they should be considered for use in responding to the Delta variant.
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Affiliation(s)
- Surakameth Mahasirimongkol
- Medical Life Sciences Institute, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (A.K.); (N.W.); (W.P.); (W.P.); (S.S.); (N.T.); (P.P.); (W.S.); (N.P.); (R.W.); (P.D.)
- Correspondence:
| | - Athiwat Khunphon
- Medical Life Sciences Institute, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (A.K.); (N.W.); (W.P.); (W.P.); (S.S.); (N.T.); (P.P.); (W.S.); (N.P.); (R.W.); (P.D.)
| | - Oraya Kwangsukstid
- Institute of Dermatology, Department of Medical Services, Ministry of Public Health, Bangkok 10400, Thailand; (O.K.); (M.W.); (D.P.)
| | - Sompong Sapsutthipas
- Institute of Biological Products, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (S.S.); (T.S.); (K.R.); (S.C.); (S.P.)
| | - Mingkwan Wichaidit
- Institute of Dermatology, Department of Medical Services, Ministry of Public Health, Bangkok 10400, Thailand; (O.K.); (M.W.); (D.P.)
| | - Archawin Rojanawiwat
- National Institute of Health, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand;
| | - Nuanjun Wichuckchinda
- Medical Life Sciences Institute, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (A.K.); (N.W.); (W.P.); (W.P.); (S.S.); (N.T.); (P.P.); (W.S.); (N.P.); (R.W.); (P.D.)
| | - Wiroj Puangtubtim
- Medical Life Sciences Institute, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (A.K.); (N.W.); (W.P.); (W.P.); (S.S.); (N.T.); (P.P.); (W.S.); (N.P.); (R.W.); (P.D.)
| | - Warangluk Pimpapai
- Medical Life Sciences Institute, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (A.K.); (N.W.); (W.P.); (W.P.); (S.S.); (N.T.); (P.P.); (W.S.); (N.P.); (R.W.); (P.D.)
| | - Sakulrat Soonthorncharttrawat
- Medical Life Sciences Institute, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (A.K.); (N.W.); (W.P.); (W.P.); (S.S.); (N.T.); (P.P.); (W.S.); (N.P.); (R.W.); (P.D.)
| | - Asawin Wanitchang
- Virology and Cell Technology Research Team, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand; (A.W.); (A.J.)
| | - Anan Jongkaewwattana
- Virology and Cell Technology Research Team, National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand; (A.W.); (A.J.)
| | - Kanjana Srisutthisamphan
- Epidemiology Division, Department of Disease Control, Ministry of Public Health, Nonthaburi 11000, Thailand; (K.S.); (S.I.)
| | - Daraka Phainupong
- Institute of Dermatology, Department of Medical Services, Ministry of Public Health, Bangkok 10400, Thailand; (O.K.); (M.W.); (D.P.)
| | - Naphatcha Thawong
- Medical Life Sciences Institute, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (A.K.); (N.W.); (W.P.); (W.P.); (S.S.); (N.T.); (P.P.); (W.S.); (N.P.); (R.W.); (P.D.)
| | - Pundharika Piboonsiri
- Medical Life Sciences Institute, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (A.K.); (N.W.); (W.P.); (W.P.); (S.S.); (N.T.); (P.P.); (W.S.); (N.P.); (R.W.); (P.D.)
| | - Waritta Sawaengdee
- Medical Life Sciences Institute, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (A.K.); (N.W.); (W.P.); (W.P.); (S.S.); (N.T.); (P.P.); (W.S.); (N.P.); (R.W.); (P.D.)
| | - Thitiporn Somsaard
- Institute of Biological Products, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (S.S.); (T.S.); (K.R.); (S.C.); (S.P.)
| | - Kanokphon Ritthitham
- Institute of Biological Products, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (S.S.); (T.S.); (K.R.); (S.C.); (S.P.)
| | - Supaporn Chumpol
- Institute of Biological Products, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (S.S.); (T.S.); (K.R.); (S.C.); (S.P.)
| | - Nadthanan Pinyosukhee
- Medical Life Sciences Institute, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (A.K.); (N.W.); (W.P.); (W.P.); (S.S.); (N.T.); (P.P.); (W.S.); (N.P.); (R.W.); (P.D.)
| | - Rattanawadee Wichajarn
- Medical Life Sciences Institute, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (A.K.); (N.W.); (W.P.); (W.P.); (S.S.); (N.T.); (P.P.); (W.S.); (N.P.); (R.W.); (P.D.)
| | - Panadda Dhepakson
- Medical Life Sciences Institute, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (A.K.); (N.W.); (W.P.); (W.P.); (S.S.); (N.T.); (P.P.); (W.S.); (N.P.); (R.W.); (P.D.)
| | - Sopon Iamsirithaworn
- Epidemiology Division, Department of Disease Control, Ministry of Public Health, Nonthaburi 11000, Thailand; (K.S.); (S.I.)
| | - Supaporn Phumiamorn
- Institute of Biological Products, Department of Medical Sciences, Ministry of Public Health, Nonthaburi 11000, Thailand; (S.S.); (T.S.); (K.R.); (S.C.); (S.P.)
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Ferreira HL, Miller PJ, Suarez DL. Protection against Different Genotypes of Newcastle Disease Viruses (NDV) Afforded by an Adenovirus-Vectored Fusion Protein and Live NDV Vaccines in Chickens. Vaccines (Basel) 2021; 9:182. [PMID: 33669907 DOI: 10.3390/vaccines9020182] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/12/2021] [Accepted: 02/14/2021] [Indexed: 01/27/2023] Open
Abstract
The efficacy of an adenovirus-vectored Newcastle disease virus (NDV) vaccine expressing the fusion (F) NDV protein (adeno-F) was evaluated against challenges with virulent heterologous and homologous NDV strains to the F protein. In a preliminary study, two different doses (low and high) of adeno-F were tested against a virulent NDV strain containing the homologous NDV F protein, CA02. In a second study, at three weeks post-vaccination, the efficacy of the high dose of adeno-F was compared to a live attenuated NDV vaccine strain (LaSota) against three antigenically distinct virulent NDV challenge strains, one homologous (CA02) and two heterologous (TZ12, EG14) to F in the vectored vaccine. In both experiments, clinical signs, mortality, virus shedding, and humoral response were evaluated. In the first experiment, the survival rates from birds vaccinated with adeno-F at a high and low dose were 100% and 25%, respectively. In the second experiment, birds vaccinated with the high dose of adeno-F had a survival rate of 80%, 75%, and 65% after challenge with the CA02, TZ12, and EG14 viruses, respectively. All of the LaSota-vaccinated birds survived post-challenge no matter the NDV challenge strain. High antibody titers were detected after vaccination with LaSota by HI and ELISA tests. The majority of adeno-F-vaccinated birds had detectable antibodies using the ELISA test, but not using the HI test, before the challenge. The data show that both the similarity of the F protein of the adeno-F vaccine to the challenge virus and the adeno-F vaccination dose affect the efficacy of an adenovirus-vectored NDV vaccine against a virulent NDV challenge.
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Junnil P, Cheanvechai C, Namchaisiri J, Saprungruang A, Thitivaraporn P, Chomvilailuk M, Benjacholamas V. Long-term course after pediatric right ventricular outflow tract reconstruction. Asian Cardiovasc Thorac Ann 2020; 29:483-489. [PMID: 33334127 DOI: 10.1177/0218492320983449] [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] [Indexed: 11/17/2022]
Abstract
OBJECTIVES Valved homografts are commonly used for right ventricular outflow tract reconstruction. However, despite good early results, they lack durability. This study was designed to compare single-center results of implantation of 3 types of right ventricular outflow tract conduit, in terms of patient survival, graft failure, reoperation, and risk factors for reoperation. METHODS One hundred and forty-three pediatric patients who underwent right ventricular outflow tract conduit implantation between January 2006 and December 2018 were reviewed. We stratified conduits by aortic, pulmonic homograft, and Contegra; 74 aortic homografts, 61 pulmonic homografts, and 8 Contegra conduits were implanted. Median age at implantation was 3 years. The primary diagnosis was truncus arteriosus in 41.3%. We analyzed the role of sex, age, diagnosis, and graft size. Endpoints included freedom from graft failure, freedom from reoperation, and survival. RESULTS The survival rate was 83.2% at 10 years. Freedom from graft failure at 2, 5, and 10 years was 100%, 97.9%, and 63.4%, respectively. Freedom from reoperation was 85.8% for pulmonic homografts and 74.9% for aortic homografts at 10 years, and 100% for Contegra at 6 years. Multivariable analysis identified conduit diameter <18 mm as a risk factor for reoperation (hazard ratio: 3.16, 95% confidence interval: 1.38-7.23, p = 0.007). CONCLUSION Homograft valves used for right ventricular outflow tract reconstruction provided excellent long-term durability and late survival. The only factor that adversely affected graft longevity was small graft size (diameter <18 mm). Reoperation for conduit failure was not significantly different among the groups.
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Affiliation(s)
- Pimchanok Junnil
- Cardiovascular and Thoracic Surgery Unit, Department of Surgery, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok, Thailand
| | - Chalit Cheanvechai
- Cardiovascular and Thoracic Surgery Unit, Department of Surgery, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok, Thailand
| | - Jule Namchaisiri
- Cardiovascular and Thoracic Surgery Unit, Department of Surgery, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok, Thailand
| | - Ankavipar Saprungruang
- Pediatric Cardiology Unit, Pediatric Department, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok, Thailand
| | - Puwadon Thitivaraporn
- Department of Cardiovascular and Thoracic Surgery, Charoenkrung Pracharak Hospital, Bangkok Metropolitan Administration, Bangkok, Thailand
| | - Mueanthep Chomvilailuk
- Cardiovascular and Thoracic Surgery Unit, Department of Surgery, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok, Thailand
| | - Vichai Benjacholamas
- Cardiovascular and Thoracic Surgery Unit, Department of Surgery, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok, Thailand
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Goldstein N, Bockstal V, Bart S, Luhn K, Robinson C, Gaddah A, Callendret B, Douoguih M. Safety and Immunogenicity of Heterologous and Homologous Two Dose Regimens of Ad26- and MVA-Vectored Ebola Vaccines: A Randomized, Controlled Phase 1 Study. J Infect Dis 2020; 226:595-607. [PMID: 32939546 PMCID: PMC9441209 DOI: 10.1093/infdis/jiaa586] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [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: 05/28/2020] [Accepted: 09/14/2020] [Indexed: 11/12/2022] Open
Abstract
Background This phase 1 placebo-controlled study assessed the safety and immunogenicity of 2-dose regimens of Ad26.ZEBOV (adenovirus serotype 26 [Ad26]) and MVA-BN-Filo (modified vaccinia Ankara [MVA]) vaccines with booster vaccination at day 360. Methods Healthy US adults (N = 164) randomized into 10 groups received saline placebo or standard or high doses of Ad26 or MVA in 2-dose regimens at 7-, 14-, 28-, or 56-day intervals; 8 groups received booster Ad26 or MVA vaccinations on day 360. Participants reported solicited and unsolicited reactogenicity; we measured immunoglobulin G binding, neutralizing antibodies and cellular immune responses to Ebola virus glycoprotein. Results All regimens were well tolerated with no serious vaccine-related adverse events. Heterologous (Ad26,MVA [dose 1, dose 2] or MVA,Ad26) and homologous (Ad26,Ad26) regimens induced humoral and cellular immune responses 21 days after dose 2; responses were higher after heterologous regimens. Booster vaccination elicited anamnestic responses in all participants. Conclusions Both heterologous and homologous Ad26,MVA Ebola vaccine regimens are well tolerated in healthy adults, regardless of interval or dose level. Heterologous 2-dose Ad26,MVA regimens containing an Ebola virus insert induce strong, durable humoral and cellular immune responses. Immunological memory was rapidly recalled by booster vaccination, suggesting that Ad26 booster doses could be considered for individuals at risk of Ebola infection, who previously received the 2-dose regimen.
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Affiliation(s)
- Neil Goldstein
- Janssen Infectious Diseases and Vaccines, Leiden, The Netherlands
| | - Viki Bockstal
- Janssen Infectious Diseases and Vaccines, Leiden, The Netherlands
| | | | - Kerstin Luhn
- Janssen Infectious Diseases and Vaccines, Leiden, The Netherlands
| | - Cynthia Robinson
- Janssen Infectious Diseases and Vaccines, Leiden, The Netherlands
| | - Auguste Gaddah
- Janssen Infectious Diseases and Vaccines, Beerse, Belgium
| | | | - Macaya Douoguih
- Janssen Infectious Diseases and Vaccines, Leiden, The Netherlands
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Veraa S, de Graaf K, Wijnberg ID, Back W, Vernooij H, Nielen M, Belt AJM. Caudal cervical vertebral morphological variation is not associated with clinical signs in Warmblood horses. Equine Vet J 2019; 52:219-224. [PMID: 31211852 PMCID: PMC7027909 DOI: 10.1111/evj.13140] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [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: 06/20/2018] [Accepted: 05/30/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND Variation in equine caudal cervical spine morphology at C6 and C7 has high prevalence in Warmblood horses and is suspected to be associated with pain in a large mixed-breed group of horses. At present no data exist on the relationship between radiographic phenotype and clinical presentation in Warmblood horses in a case-control study. OBJECTIVES To establish the frequency of radiographically visible morphologic variation in a large group of Warmblood horses with clinical signs and compare this with a group without clinical signs. We hypothesised that occurrence of morphologic variation in the case group would not differ from the control group, indicating there is no association between clinical signs and morphologic variation. STUDY DESIGN Retrospective case-control. METHODS Radiographic presence or absence of morphologic variation of cervical vertebrae C6 and C7 was recorded in case (n = 245) and control horses (n = 132). Case and control groups were compared by univariable Pearson's Chi-square and multivariable logistic regression for measurement variables age, sex, breed, degenerative joint disease and morphologic variation at C6 and C7. Odds ratio and confidence intervals were obtained. A P≤0.05 was considered statistically significant. RESULTS Morphologic variation at C6 and C7 (n = 108/377 = 28.6%; Cases 58/245 = 23.7%; Control 50/132 = 38%) was less frequent in horses with clinical signs in univariable testing (OR 0.48, 95% CI 0.3-0.8, P = 0.001). Age, sex, breed and degenerative joint disease were not retained in the final multivariable logistic regression step whereas morphologic variation remained significantly less present in horses with clinical signs. MAIN LIMITATIONS Possible demographic differences between equine clinics. CONCLUSIONS Morphologic variation in the caudal cervical spine was detected more frequently in horses without clinical signs. Therefore, radiographic presence of such variation does not necessarily implicate the presence of clinical signs.
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Affiliation(s)
- S Veraa
- Division of Diagnostic Imaging, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - K de Graaf
- Equine Clinic, Veterinary Centre Someren, Someren, the Netherlands
| | - I D Wijnberg
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - W Back
- Department of Equine Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands.,Department of Surgery and Anaesthesiology of Domestic Animals, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - H Vernooij
- Department of Farm Animal Health, Utrecht, the Netherlands
| | - M Nielen
- Department of Farm Animal Health, Utrecht, the Netherlands
| | - A J M Belt
- Division of Diagnostic Imaging, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
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Bradel-Tretheway BG, Zamora JLR, Stone JA, Liu Q, Li J, Aguilar HC. Nipah and Hendra Virus Glycoproteins Induce Comparable Homologous but Distinct Heterologous Fusion Phenotypes. J Virol 2019; 93:e00577-19. [PMID: 30971473 DOI: 10.1128/JVI.00577-19] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 04/07/2019] [Indexed: 02/02/2023] Open
Abstract
Nipah and Hendra viruses (NiV and HeV) exhibit high lethality in humans and are biosafety level 4 (BSL-4) paramyxoviruses in the growing genus Henipavirus The attachment (G) and fusion (F) envelope glycoproteins are both required for viral entry into cells and for cell-cell fusion, which is pathognomonic of henipaviral infections. Here, we compared the fusogenic capacities between homologous and heterologous pairs of NiV and HeV glycoproteins. Importantly, to accurately measure their fusogenic capacities, as these depend on glycoprotein cell surface expression (CSE) levels, we inserted identical extracellular tags to both fusion (FLAG tags) or both attachment (hemagglutinin [HA] tags) glycoproteins. Importantly, these tags were placed in extracellular sites where they did not affect glycoprotein expression or function. NiV and HeV glycoproteins induced comparable levels of homologous HEK293T cell-cell fusion. Surprisingly, however, while the heterologous NiV F/HeV G (NF/HG) combination yielded a hypofusogenic phenotype, the heterologous HeV F/NiV G (HF/NG) combination yielded a hyperfusogenic phenotype. Pseudotyped viral entry levels primarily corroborated the fusogenic phenotypes of the glycoprotein pairs analyzed. Furthermore, we constructed G and F chimeras that allowed us to map the overall regions in G and F that contributed to these hyperfusogenic or hypofusogenic phenotypes. Importantly, the fusogenic phenotypes of the glycoprotein combinations negatively correlated with the avidities of F-G interactions, supporting the F/G dissociation model of henipavirus-induced membrane fusion, even in the context of heterologous glycoprotein pairs.IMPORTANCE The NiV and HeV henipaviruses are BSL-4 pathogens transmitted from bats. NiV and HeV often lead to human death and animal diseases. The formation of multinucleated cells (syncytia) is a hallmark of henipaviral infections and is caused by fusion of cells coordinated by interactions of the viral attachment (G) and fusion (F) glycoproteins. We found via various assays that viral entry and syncytium formation depend on the viral origin of the glycoproteins, with HeV F and NiV G promoting higher membrane fusion levels than their counterparts. This is important knowledge, since both viruses use the same bat vector species and potential coinfections of these or subsequent hosts may alter the outcome of disease.
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Hall CE, Hagan LM, Bergmann-Leitner E, Tosh DM, Bennett JW, Regules JA, Chuang I, Angov E, Dutta S, Chattopadhyay D, Yadava A. Mosquito Bite-Induced Controlled Human Malaria Infection with Plasmodium vivax or P. falciparum Generates Immune Responses to Homologous and Heterologous Preerythrocytic and Erythrocytic Antigens. Infect Immun 2019; 87:e00541-18. [PMID: 30559218 DOI: 10.1128/IAI.00541-18] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 12/07/2018] [Indexed: 11/20/2022] Open
Abstract
Seroepidemiological studies on the prevalence of antibodies to malaria antigens are primarily conducted on individuals from regions of endemicity. It is therefore difficult to accurately correlate the antibody responses to the timing and number of prior malaria infections. This study was undertaken to assess the evolution of antibodies to the dominant surface antigens of Plasmodium vivax and P. falciparum following controlled human malaria infection (CHMI) in malaria-naive individuals. Serum samples from malaria-naive adults, collected before and after CHMI with either P. vivax (n = 18) or P. falciparum (n = 18), were tested for the presence of antibodies to the circumsporozoite protein (CSP) and the 42-kDa fragment of merozoite surface protein 1 (MSP-142) of P. vivax and P. falciparum using an enzyme-linked immunosorbent assay (ELISA). Approximately 1 month following CHMI with either P. vivax or P. falciparum, >60% of subjects seroconverted to homologous CSP and MSP-1. More than 50% of the subjects demonstrated reactivity to heterologous CSP and MSP-142, and a similar proportion of subjects remained seropositive to homologous MSP-142 >5 months after CHMI. Computational analysis provides insight into the presence of cross-reactive responses. The presence of long-lived and heterologous reactivity and its functional significance, if any, need to be taken into account while evaluating malaria exposure in field settings.
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Murala JS, Vela RJ, Geoffrion T, Chopra S, Guhathakurtha S, Pezzella T, Cherian KM. Right ventricular outflow tract obstruction: a quest for ideal management. Asian Cardiovasc Thorac Ann 2018; 26:451-460. [PMID: 29860893 DOI: 10.1177/0218492318779963] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Management of right ventricular outflow tract obstruction has undergone much change over the last century. Techniques described in the literature include anatomical repairs and the use of various patches, conduits, and innovative grafts. However, many of these approaches require reoperations or catheter-based interventions, leading to increased morbidity, mortality, and cost. The search for the ideal long-lasting conduit continues and there are new techniques on the horizon, using genetic engineering and nanotechnology. This review discusses the evolution of various techniques for repair of right ventricular outflow tract obstruction, past and current conduits, as well as ongoing research.
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Affiliation(s)
- John Sk Murala
- 1 Department of Cardiovascular and Thoracic Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Ryan J Vela
- 1 Department of Cardiovascular and Thoracic Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Tracy Geoffrion
- 1 Department of Cardiovascular and Thoracic Surgery, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Surpreet Chopra
- 2 Department of Cardiovascular and Thoracic Surgery, Government Medical College and Super Specialty Hospital, Nagpur, India
| | - Soma Guhathakurtha
- 3 Department of Engineering Design, Indian Institute of Technology Chennai, India
| | - Thomas Pezzella
- 4 International Children's Heart Fund, Boca Raton, Florida, USA
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Benslimane H. Virulence Phenotyping and Molecular Characterization of a New Virulence Type of Pyrenophora tritici-repentis the Causal Agent of Tan Spot. Plant Pathol J 2018; 34:139-142. [PMID: 29628820 PMCID: PMC5880358 DOI: 10.5423/ppj.nt.07.2017.0150] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 10/28/2017] [Accepted: 12/11/2017] [Indexed: 05/21/2023]
Abstract
Pyrenophoratritici-repentis is the causal agent of tan spot. According to their ability to produce necrosis and/or chlorosis on a set of four differential bread wheats, the isolates of this fungus are currently grouped into eight races. When durum wheat genotypes were added to the differential set, a new virulence type was identified in Algeria. The isolates showing this virulence pattern are unable to attack bread wheat while they cause necrosis in durum genotypes. In this work, characterization of those isolates was based on pathological and molecular aspects. This included inoculation of bread and durum wheat, and virulence gene analysis using PCR and sequencing. The results showed that all isolates caused a resistance on all bread wheats of the differential set, while they produced necrosis in durum. ToxA and ToxB genes were amplified in all isolates, whereas toxb was absent. Sequence analysis for both genes showed no differences with those found in the two functional genes. The presence of two genes, ToxA and ToxB, despite the absence of symptoms usually caused by their products, suggests the existence of a new homologous for these two genes yet unknown. The presence of ToxA in the isolate unable to produce necrosis in Glenlea is reported for the first time.
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Affiliation(s)
- Hamida Benslimane
- Corresponding author. Phone) +213(0)-554-583-229, FAX) +213(0)-2382-8503/04, E-mail)
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Prabhu R, Vijayakumar C, Bosco Chandra AA, Balagurunathan K, Kalaiarasi R, Venkatesan K, Santosh Raja E, T S. Efficacy of Homologous, Platelet-rich Plasma Dressing in Chronic Non-healing Ulcers: An Observational Study. Cureus 2018; 10:e2145. [PMID: 29632754 PMCID: PMC5880593 DOI: 10.7759/cureus.2145] [Citation(s) in RCA: 5] [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] [Indexed: 11/28/2022] Open
Abstract
Background Chronic non-healing ulcers are a frequent problem in developing countries and represent a heavy burden to the patients because they lack the necessary growth factors (GFs) to maintain the healing process and are frequently complicated by super, added infections. Traditional therapies, such as regular dressings and wound debridement, cannot provide satisfactory results since these treatments are not able to provide the necessary GFs. Platelet-rich plasma (PRP) helps in enhancing the wound healing by releasing various GFs. The aim was to evaluate the efficacy of PRP dressing in the treatment of chronic non-healing ulcers. Methods Patients attending the outpatient department on a regular basis and those admitted as inpatients for chronic wound management were included in the study. It was an observational study done in a tertiary health center for a period of one year. All patients with eligible criteria were treated with PRP at twice-weekly intervals for a maximum of 10 dressings. At the end of the five weeks period, the reduction in the size of the ulcers (area and volume) was assessed. Results A total of 104 cases with chronic non-healing ulcers of various causes were treated with homologous PRP twice weekly for a maximum of 10 dressings. In those 104 patients, non-healing ulcers in 85 patients (81.73%) were healed at the end of the last dressing. Non-healing ulcers in 13 patients (12.5%) were healed with skin grafting. Among those patients, the baseline mean ulcer area was 5.03 cm2. For each visit, there was a reduction in the ulcer area. At the end of the last visit, the mean ulcer area was 1.69 cm2, which was significant in this study. Conclusion Due to the lack of necessary GFs in chronic non-healing ulcers, PRP is safe and enhances the healing rates of chronic wounds, thereby reducing overall hospital stay and morbidity.
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Affiliation(s)
- Ravi Prabhu
- General Surgery, Sri Lakshmi Narayana Institute of Medical Science, Puducherry, India
| | - Chellappa Vijayakumar
- Surgery, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | | | - K Balagurunathan
- Surgery, Sri Lakshmi Narayana Institute of Medical Science, Puducherry, India
| | - Raja Kalaiarasi
- Otorhinolaryngology, Sri Lakshmi Narayana Institute of Medical Science, Puducherry, India
| | - K Venkatesan
- Surgery, Sri Lakshmi Narayana Institute of Medical Science, Puducherry, India
| | | | - Swetha T
- Obstetric and Gynaecology, Mahatma Gandhi Medical College and Research Institute, Pondicherry, India
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Vichinsartvichai P. Bilateral tubo-ovarian abscesses presenting with huge pelvic mass after repeated intrauterine inseminations in a woman with severe endometriosis. J Obstet Gynaecol Res 2018; 44:792-796. [PMID: 29316041 DOI: 10.1111/jog.13570] [Citation(s) in RCA: 4] [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: 09/28/2017] [Accepted: 11/10/2017] [Indexed: 11/28/2022]
Abstract
A 32-year-old woman consulted for an evaluation of pelvic pain following intrauterine insemination (IUI). Vaginal and abdominal sonography, septic workup were performed and laparoscopic surgery was scheduled after failure to respond to a course of antibiotics. During laparoscopic surgery, bilateral tubo-ovarian abscesses arising on the endometriotic cysts of both ovaries were identified with a vast amount of brownish peritoneal fluid under the adhesion of the greater omentum. Bilateral ovarian cystectomy, right salpingectomy and lysis adhesion were performed. Pathologic organisms were not detected in any of the specimen cultures. Pelvic infection is an uncommon complication following IUI. Endometriosis might be a risk factor predisposing the pelvic organ to be susceptible to such infection. Performing IUI in a patient with endometriosis should be done with great vigilance.
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Affiliation(s)
- Patsama Vichinsartvichai
- Infertility Unit, Department of Obstetrics and Gynecology, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok, Thailand
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Rai S, Verma S, Yadav PK, Ahmad J, Yadav HK. Utility of Acute Normovolemic Hemodilution in Major Surgeries in Rural Area: A Prospective Comparative Study from North India. Anesth Essays Res 2017; 11:909-912. [PMID: 29284848 PMCID: PMC5735487 DOI: 10.4103/aer.aer_86_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Introduction Easy availability of autologous blood is difficult in rural areas. Acute normovolemic hemodilution (ANH) has been found to be an effective alternative in major surgeries where we are expecting major blood loss. Patients and Methods A prospective comparative study was designed to evaluate the utility of ANH patients (patients receiving autologous blood) during major operations done at MRA Medical College Ambedkar Nagar, Uttar Pradesh, India. during from September 2015 to September 2016. A total of 60 patients undergoing major surgeries were randomly assigned into two groups of thirty patients' each. Group I received homologous blood intraoperative only when required. In Group II ANH was initiated to a target hematocrit of 30% after induction of anesthesia. Various parameters such as demographic, biochemical, and hemodynamic were compared. Results The mean value of blood withdrawn in ANH group was 650.5 ± 228 ml and it was replaced with an equal volume of 6% hydroethyl starch. There was no statistically significant variation in mean hemocrits levels in both the groups at various stages of the study. Hematocrits decreased significantly in both the groups at various stages as compared to preoperative values. The heart rate and mean blood pressure were almost similar and without statistically significant differences in both groups. Surgical blood loss in Group I was 895.29 ± 568.30 ml as compared to 765 ± 506 ml in Group II. The difference was statistically insignificant (P ≥ 0.05). The mean volume of homologous blood transfused in Group I was 850.71 ± 318.29 ml, as compared to nil in Group II which was statistically significant (P < 0.05). Conclusion It concludes that ANH up to a target hematocrit of 30% is safe and effective in reducing the need for homologous blood in various major surgeries in institutes in rural areas.
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Affiliation(s)
- Sujeet Rai
- Department of Anaesthesiology, MRA Medical College, Ambedkar Nagar, Uttar Pradesh, India
| | - Satyajeet Verma
- Department of Surgery, MRA Medical College, Ambedkar Nagar, Uttar Pradesh, India
| | - Pramod Kumar Yadav
- Department of Otorhinolaryngology, MRA Medical College, Ambedkar Nagar, Uttar Pradesh, India
| | - Jawed Ahmad
- Department of Orthopaedics, MRA Medical College, Ambedkar Nagar, Uttar Pradesh, India
| | - Harikesh Kumar Yadav
- Department of Surgery, Government Medical College, Azamgarh, Uttar Pradesh, India
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Kohn TP, Kohn JR, Ramasamy R. Effect of Sperm Morphology on Pregnancy Success via Intrauterine Insemination: A Systematic Review and Meta-Analysis. J Urol 2017; 199:812-822. [PMID: 29129781 DOI: 10.1016/j.juro.2017.11.045] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/02/2017] [Indexed: 10/18/2022]
Abstract
PURPOSE Men with abnormal sperm morphology are often counseled that natural conception and intrauterine insemination are ineffective, and in vitro fertilization is the only option. Our objective was to determine the effect of sperm morphology on the pregnancy success of intrauterine insemination. MATERIALS AND METHODS We systematically searched for studies published prior to January 2017 that 1) reported ultrasound verified clinical pregnancies per intrauterine insemination cycle, 2) assessed sperm morphology using the Kruger strict criteria and 3) described morphology at the greater than 4% and 4% or less and/or the 1% or greater and less than 1% thresholds. In all studies mean female age was between 25 and 40 years and mean total motile sperm count was greater than 10 million. Estimates were pooled using random effects meta-analysis. RESULTS Data were extracted from 20 observational studies involving a total of 41,018 cycles. When comparing men at the greater than 4% and 4% or less thresholds, the rate of ultrasound verified pregnancy per intrauterine insemination cycle was not statistically or clinically different (14.2% vs 12.1%, p = 0.06) and the risk difference was 3.0% (95% CI 1.4-4.6), indicating 3.0 additional pregnancies per 100 intrauterine insemination cycles. When comparing men at the 1% or greater and the less than 1% thresholds, there were no statistical or clinical differences in the rate of ultrasound verified pregnancy per cycle of intrauterine insemination (14.0% vs 13.9%, p = 0.97) or in the risk difference (1.6%, 95% CI -4.5-7.6). CONCLUSIONS There appears to be no clinical difference in intrauterine insemination pregnancy success among men with normal and abnormal sperm morphology when accounting for total motile sperm count and female age. Abnormal sperm morphology alone should not exclude couples from attempting intrauterine insemination.
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Affiliation(s)
- Taylor P Kohn
- Baylor College of Medicine, Houston, Texas; Department of Urology, University of Miami Miller School of Medicine, Miami, Florida
| | - Jaden R Kohn
- Baylor College of Medicine, Houston, Texas; Department of Urology, University of Miami Miller School of Medicine, Miami, Florida
| | - Ranjith Ramasamy
- Baylor College of Medicine, Houston, Texas; Department of Urology, University of Miami Miller School of Medicine, Miami, Florida.
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Abstract
Asiatic lily cultivars, bred by hybridization and (or) chromosome doubling of species of section Sinomartagon of Lilium, are diploid, triploid, or tetraploid, but the homology of the genomes among species of section Sinomartagon and Asiatic lilies remains unclear. In the present research, two tetraploid Asiatic cultivars were analyzed, using 45S rDNA as probe, for their FISH karyotypes and their chromosomal association, anaphase I, telophase II, and pollen viability were surveyed to assess the multivalent segregation. Chromosomal assortment of six progenies of the two tetraploid cultivars were also investigated. The results showed that the tetraploid cultivars had similar FISH karyotypes, they predominantly formed multivalents, and these were equally separated because their anaphase I, telophase II, and pollen viability were similar to those of diploid species. Apart from minor variations, FISH karyotypes of progenies were similar to each other and to their parents. Based on these results and considering the high crossability among species of section Sinomartagon and (or) Asiatic lilies, we concluded that species of section Sinomartagon and their resulting cultivars share a common genome; thus, polyploidy Asiatic lilies are autopolyploid.
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Affiliation(s)
- Shujun Zhou
- a College of Forestry, Jiangxi Agricultural University, 1101 of Zhimindayao, Nanchang 330045, Jiangxi Province, China.,b Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, Zhejiang Province, China
| | - Lei Zhong
- a College of Forestry, Jiangxi Agricultural University, 1101 of Zhimindayao, Nanchang 330045, Jiangxi Province, China
| | - Lu Zhang
- a College of Forestry, Jiangxi Agricultural University, 1101 of Zhimindayao, Nanchang 330045, Jiangxi Province, China
| | - Zhenghua Xu
- a College of Forestry, Jiangxi Agricultural University, 1101 of Zhimindayao, Nanchang 330045, Jiangxi Province, China
| | - Xuxin Liu
- a College of Forestry, Jiangxi Agricultural University, 1101 of Zhimindayao, Nanchang 330045, Jiangxi Province, China
| | - Kehu Li
- b Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, Zhejiang Province, China
| | - Guixue Zhou
- b Department of Horticulture, College of Agriculture and Biotechnology, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, Zhejiang Province, China
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Graham DA, Rowley HR, Frost P. Cross-neutralization studies with salmonid alphavirus subtype 1-6 strains: results with sera from experimental studies and natural infections. J Fish Dis 2014; 37:683-91. [PMID: 23957811 DOI: 10.1111/jfd.12167] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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: 05/20/2013] [Revised: 07/15/2013] [Accepted: 07/16/2013] [Indexed: 05/13/2023]
Abstract
The serological reactivity between strains of each of the six currently genetically defined subtypes of salmonid alphavirus (SAV) was examined by comparison of homologous and heterologous virus neutralization titres on sera from experimentally infected fish. With the exception of the level of SAV subtype 6 neutralization by heterologous sera, good cross-neutralization was detected between all subtypes, albeit with variation in geometric mean titres when each subtype-specific serum set was tested against the panel of virus subtypes. A similar pattern was evident with field sera, except that heterologous neutralization of the SAV6 strain was more evident. In only 23% of available pairwise comparisons was the homologous titre recorded with an experimentally derived serum fourfold or greater than the heterologous titre, and in only two instances was this difference demonstrated in both directions. No virus strains consistently met the old serology-based criteria (Sub-committee on Inter-relationships Among Catalogued Alphaviruses) to be considered separate subtypes within an alphavirus species. Only when testing with an SAV subtype-2-specific monoclonal antibody was a major difference between homologous and heterologous neutralization capacity evident. These results provide new direct or indirect information in terms of SAV classification, vaccine efficacy and the selection and validation of reagents for serological and immunological diagnostic purposes.
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Affiliation(s)
- D A Graham
- Fish Diseases Unit, Agrifood and Biosciences Institute, Stormont, UK
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31
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Makino Y, Inoue E, Hada M, Aoshima K, Kitano S, Miyachi H, Okada Y. Generation of a dual-color reporter mouse line to monitor spermatogenesis in vivo. Front Cell Dev Biol 2014; 2:30. [PMID: 25364737 PMCID: PMC4206980 DOI: 10.3389/fcell.2014.00030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [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: 06/02/2014] [Accepted: 07/03/2014] [Indexed: 01/15/2023] Open
Abstract
In vivo fluorescent imaging technique is a strong tool to visualize the various cellular events such as the proliferation, differentiation, migration, and a lineage tracing in living cells requiring no further experimental procedure such as immunostaining. During spermatogenesis, unique and dynamic histone exchanges occur. Since the timing and types of histone exchanges defines the particular stages of spermatogenesis, visualizing certain types of histones in testes is useful not only for researching specific histone dynamics, but also for monitoring the stages of spermatogenesis in vivo. In this study, we report the establishment of two transgenic (Tg) mouse lines expressing histone H4-Venus (H4V) and histone H3.3-mCherry (H33C) fusion proteins in testicular germ cells, and demonstrated their utility for monitoring germ cell development in vivo. Because of the choice of promoter as well as the nature of these histones, H4V and H33C were exclusively expressed in the germ cells of the distinct stages, which allowed the determination of spermatogenic stages in real time. In addition, disappearance of H4V and H33C at particular stages of differentiation/fertilization also represented dynamic histone removal. Collectively, these Tg mice are a valuable resource not only for monitoring differentiation stages, but also for studying the chromatin dynamics of post-natal testicular germ cell development in vivo.
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Affiliation(s)
- Yoshinori Makino
- Laboratory of Pathology and Development, Institute of Molecular and Cellular Biosciences, The University of Tokyo Tokyo, Japan ; Career-Path Promotion Unit for Young Life Scientists, Center for the Promotion of Interdisciplinary Education and Research, Kyoto University Kyoto, Japan
| | - Erina Inoue
- Laboratory of Pathology and Development, Institute of Molecular and Cellular Biosciences, The University of Tokyo Tokyo, Japan
| | - Masashi Hada
- Laboratory of Pathology and Development, Institute of Molecular and Cellular Biosciences, The University of Tokyo Tokyo, Japan ; Department of Biotechnology, Graduate School of Agricultural and Life Sciences, The University of Tokyo Tokyo, Japan
| | - Keisuke Aoshima
- Division of Molecular Pathobiology, Center for Zoonosis Control, Hokkaido University Sapporo, Japan
| | - Satsuki Kitano
- Reproductive Engineering Team, Institute for Virus Research, Kyoto University Kyoto, Japan
| | - Hitoshi Miyachi
- Reproductive Engineering Team, Institute for Virus Research, Kyoto University Kyoto, Japan
| | - Yuki Okada
- Laboratory of Pathology and Development, Institute of Molecular and Cellular Biosciences, The University of Tokyo Tokyo, Japan ; Career-Path Promotion Unit for Young Life Scientists, Center for the Promotion of Interdisciplinary Education and Research, Kyoto University Kyoto, Japan ; PRESTO, Japan Science and Technology Agency Saitama, Japan
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Mishra V, Cheng H, Gong G, He Y, Dong Q, Huang H. Differences of inter-tract correlations between neonates and children around puberty: a study based on microstructural measurements with DTI. Front Hum Neurosci 2013; 7:721. [PMID: 24194711 PMCID: PMC3810597 DOI: 10.3389/fnhum.2013.00721] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [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: 06/18/2013] [Accepted: 10/11/2013] [Indexed: 11/13/2022] Open
Abstract
The human brain development is a complicated yet well-organized process. Metrics derived from diffusion tensor imaging (DTI), including fractional anisotropy (FA), radial (RD), axial (AxD), and mean diffusivity (MD), have been used to noninvasively access the microstructural development of human brain white matter (WM). At birth, most of the major WM tracts are apparent but in a relatively disorganized pattern. Brain maturation is a process of establishing an organized pattern of these major WM tracts. However, how the linkage pattern of major WM tracts changes during development remains unclear. In this study, DTI data of 26 neonates and 28 children around puberty were acquired. 10 major WM tracts, representing four major tract groups involved in distinctive brain functions, were traced with DTI tractography for all 54 subjects. With the 10 by 10 correlation matrices constructed with Spearman's pairwise inter-tract correlations and based on tract-level measurements of FA, RD, AxD, and MD of both age groups, we assessed if the inter-tract correlations become stronger from birth to puberty. In addition, hierarchical clustering was performed based on the pairwise correlations of WM tracts to reveal the clustering pattern for each age group and pattern shift from birth to puberty. Stronger and enhanced microstructural inter-tract correlations were found during development from birth to puberty. The linkage patterns of two age groups differ due to brain development. These changes of microstructural correlations from birth to puberty suggest inhomogeneous but organized myelination processes which cause the reshuffled inter-tract correlation pattern and make homologous tracts tightly clustered. It opens a new window to study WM tract development and can be potentially used to investigate atypical brain development due to neurological or psychiatric disorders.
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Affiliation(s)
- Virendra Mishra
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center Dallas, TX, USA
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Jung JH, Baguindali MA, Park JT, Jang YJ. Costal cartilage is a superior implant material than conchal cartilage in the treatment of empty nose syndrome. Otolaryngol Head Neck Surg 2013; 149:500-5. [PMID: 23728068 DOI: 10.1177/0194599813491223] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [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: 12/15/2022]
Abstract
OBJECTIVE The objective of this study was to evaluate the outcomes of endonasal microplasty in treating empty nose syndrome by comparing the use of costal and conchal cartilage implants to construct neoturbinates. STUDY DESIGN Case series with chart review. SETTING Tertiary referral center. SUBJECTS AND METHODS A total of 31 patients who were diagnosed with empty nose syndrome and underwent endonasal microplasty with conchal cartilage (n = 17) or costal cartilage implants (n = 14) were included. Each patient's clinico-demographic profile was reviewed to compare the conchal cartilage group and the costal cartilage groups. Pre- and postoperative Sino-Nasal Outcome Test (SNOT-25) scores were also compared. RESULTS Both groups showed a significant improvement in SNOT-25 scores following surgery (P < .05). The group who received costal cartilage implants demonstrated more significant improvements than the conchal cartilage group in terms of the mean difference between pre- and postoperative SNOT-25 scores (P = .023). Symptom outcomes related to depression demonstrated significant improvements in the conchal cartilage group (P < .05), while in the costal cartilage group, in addition to these 3 variables, 7 items related to functional problems also demonstrated significant improvements (P < .05). CONCLUSIONS Costal cartilage is a more useful material than conchal cartilage as implants for the treatment of empty nose syndrome patients.
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Affiliation(s)
- Jae Hoon Jung
- Department of Otolaryngology, Asan Medical Center, University of Ulsan College of Medicine, Republic of Korea
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Piechota HJ, Gleason CA, Dahms SE, Dahiya R, Nunes LS, Lue TF, Tanagho EA. Bladder acellular matrix graft: in vivo functional properties of the regenerated rat bladder. Urol Res 1999; 27:206-13. [PMID: 10422823 PMCID: PMC7079897 DOI: 10.1007/s002400050111] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The purpose of this study was to determine whether the rat urinary bladder augmented by an acellular matrix graft can restore the bladder's low-pressure reservoir function and preserve normal micturition. After partial cystectomy (> 50%) and grafting with the bladder acellular matrix graft (BAMG), storage and voiding functions were monitored in 20 rats by means of a specially designed "micturition cage," leak-point cystography, and cystometry. After 4 months, sections (n = 6) were examined histologically to evaluate regeneration of bladder wall components within the BAMG. Bladder capacity and compliance increased progressively and were significantly higher in the grafted animals than in controls (partial cystectomy only), and volumes per void were significantly higher than in either control or normal animals. At 4 months, the regenerated urothelium, smooth muscle, blood vessels and nerves within the BAMG were qualitatively identical to normal bladder wall. Augmentation cystoplasty with the homologous BAMG leads to morphologic and functional rat bladder regeneration, thus enhancing low-pressure reservoir function and preserving normal micturition.
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Affiliation(s)
- H J Piechota
- Department of Urology, University of California School of Medicine, San Francisco 94143-0738, USA
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