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Vujovic A, de Rooij L, Chahi AK, Chen HT, Yee BA, Loganathan SK, Liu L, Chan DC, Tajik A, Tsao E, Moreira S, Joshi P, Xu J, Wong N, Balde Z, Jahangiri S, Zandi S, Aigner S, Dick JE, Minden MD, Schramek D, Yeo GW, Hope KJ. In Vivo Screening Unveils Pervasive RNA-Binding Protein Dependencies in Leukemic Stem Cells and Identifies ELAVL1 as a Therapeutic Target. Blood Cancer Discov 2023; 4:180-207. [PMID: 36763002 PMCID: PMC10150294 DOI: 10.1158/2643-3230.bcd-22-0086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 11/30/2022] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Acute myeloid leukemia (AML) is fueled by leukemic stem cells (LSC) whose determinants are challenging to discern from hematopoietic stem cells (HSC) or uncover by approaches focused on general cell properties. We have identified a set of RNA-binding proteins (RBP) selectively enriched in human AML LSCs. Using an in vivo two-step CRISPR-Cas9 screen to assay stem cell functionality, we found 32 RBPs essential for LSCs in MLL-AF9;NrasG12D AML. Loss-of-function approaches targeting key hit RBP ELAVL1 compromised LSC-driven in vivo leukemic reconstitution, and selectively depleted primitive malignant versus healthy cells. Integrative multiomics revealed differentiation, splicing, and mitochondrial metabolism as key features defining the leukemic ELAVL1-mRNA interactome with mitochondrial import protein, TOMM34, being a direct ELAVL1-stabilized target whose repression impairs AML propagation. Altogether, using a stem cell-adapted in vivo CRISPR screen, this work demonstrates pervasive reliance on RBPs as regulators of LSCs and highlights their potential as therapeutic targets in AML. SIGNIFICANCE LSC-targeted therapies remain a significant unmet need in AML. We developed a stem-cell-adapted in vivo CRISPR screen to identify key LSC drivers. We uncover widespread RNA-binding protein dependencies in LSCs, including ELAVL1, which we identify as a novel therapeutic vulnerability through its regulation of mitochondrial metabolism. This article is highlighted in the In This Issue feature, p. 171.
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Affiliation(s)
- Ana Vujovic
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Laura de Rooij
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
| | - Ava Keyvani Chahi
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
| | - He Tian Chen
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
| | - Brian A. Yee
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California
| | - Sampath K. Loganathan
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
| | - Lina Liu
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Derek C.H. Chan
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
| | - Amanda Tajik
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
| | - Emily Tsao
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Steven Moreira
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Pratik Joshi
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Joshua Xu
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
| | - Nicholas Wong
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Zaldy Balde
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Soheil Jahangiri
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Sasan Zandi
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - Stefan Aigner
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California
| | - John E. Dick
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - Mark D. Minden
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
- Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Daniel Schramek
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - Gene W. Yeo
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California
| | - Kristin J. Hope
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
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Vujovic A, de Rooij L, Chahi AK, Chen HT, Yee B, Loganathan S, Chan D, Tajik A, Liu L, Xu J, Wong N, Zandi S, Aigner S, Lu Y, Dick J, Minden M, Schramek D, Yeo G, Hope K. 3138 – A TWO-STEP IN VIVO CRISPR SCREEN UNVEILS PERVASIVE RNA-BINDING PROTEIN DEPENDENCIES FOR LEUKEMIC STEM CELLS AND IDENTIFIES ELAVL1 AS A THERAPEUTIC TARGET. Exp Hematol 2021. [DOI: 10.1016/j.exphem.2021.12.354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chan D, Liu L, Tran D, Vujovic A, Wu R, de Rooij L, Xu J, Lu Y, Hope K. 3060 – DOWNREGULATED STAUFEN1 COMPROMISES HEMATOPOIETIC STEM CELL ACTIVITY IN VIVO AND ELICITS EXPRESSION SIGNATURES CHARACTERISTIC OF CLINICAL ANEMIAS. Exp Hematol 2020. [DOI: 10.1016/j.exphem.2020.09.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Ly M, Rentas S, Vujovic A, Wong N, Moreira S, Xu J, Holzapfel N, Bhatia S, Tran D, Minden MD, Draper JS, Hope KJ. Diminished AHR Signaling Drives Human Acute Myeloid Leukemia Stem Cell Maintenance. Cancer Res 2019; 79:5799-5811. [PMID: 31519687 DOI: 10.1158/0008-5472.can-19-0274] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Revised: 07/31/2019] [Accepted: 09/10/2019] [Indexed: 11/16/2022]
Abstract
Eliminating leukemic stem cells (LSC) is a sought after therapeutic paradigm for the treatment of acute myeloid leukemia (AML). While repression of aryl hydrocarbon receptor (AHR) signaling has been shown to promote short-term maintenance of primitive AML cells in culture, no work to date has examined whether altered AHR signaling plays a pathologic role in human AML or whether it contributes at all to endogenous LSC function. Here, we show AHR signaling is repressed in human AML blasts and preferentially downregulated in LSC-enriched populations within leukemias. A core set of AHR targets are uniquely repressed in LSCs across diverse genetic AML subtypes. In vitro and in vivo administration of the specific AHR agonist FICZ significantly impaired leukemic growth, promoted differentiation, and repressed self-renewal. Furthermore, LSCs suppressed a set of FICZ-responsive AHR target genes that function as tumor suppressors and promoters of differentiation. FICZ stimulation did not impair normal hematopoietic stem and progenitor (HSPC) function, and failed to upregulate a prominent LSC-specific AHR target in HSPCs, suggesting that differential mechanisms govern FICZ-induced AHR signaling manifestations in HSCs versus LSCs. Altogether, this work highlights AHR signaling suppression as a key LSC-regulating control mechanism and provides proof of concept in a preclinical model that FICZ-mediated AHR pathway activation enacts unique transcriptional programs in AML that identify it as a novel chemotherapeutic approach to selectively target human LSCs. SIGNIFICANCE: The AHR pathway is suppressed in leukemic stem cells (LSC), therefore activating AHR signaling is a potential therapeutic option to target LSCs and to treat acute myeloid leukemia.
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Affiliation(s)
- Michelle Ly
- Department of Biochemistry and Biomedical Sciences, Stem Cell and Cancer Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Stefan Rentas
- Department of Biochemistry and Biomedical Sciences, Stem Cell and Cancer Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Ana Vujovic
- Department of Biochemistry and Biomedical Sciences, Stem Cell and Cancer Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Nicholas Wong
- Department of Biochemistry and Biomedical Sciences, Stem Cell and Cancer Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Steven Moreira
- Department of Biochemistry and Biomedical Sciences, Stem Cell and Cancer Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Joshua Xu
- Department of Biochemistry and Biomedical Sciences, Stem Cell and Cancer Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Nicholas Holzapfel
- Department of Biochemistry and Biomedical Sciences, Stem Cell and Cancer Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Sonam Bhatia
- Department of Biochemistry and Biomedical Sciences, Stem Cell and Cancer Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Damian Tran
- Department of Biochemistry and Biomedical Sciences, Stem Cell and Cancer Research Institute, McMaster University, Hamilton, Ontario, Canada
| | - Mark D Minden
- Department of Medicine, Princess Margaret Cancer Centre, University Health Network, University of Toronto, Toronto, Ontario, Canada
| | - Jonathan S Draper
- Department of Biochemistry and Biomedical Sciences, Stem Cell and Cancer Research Institute, McMaster University, Hamilton, Ontario, Canada.,Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Kristin J Hope
- Department of Biochemistry and Biomedical Sciences, Stem Cell and Cancer Research Institute, McMaster University, Hamilton, Ontario, Canada.
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Chan D, Vujovic A, de Rooij L, Wong N, Joyce C, Sandi M, La Rose J, Novina C, Rottapel R, Hope K. The Mitotic Spindle Orientation Factor Lfc/Arhgef2 is Essential for Hematopoietic Stem Cell Function. Exp Hematol 2018. [DOI: 10.1016/j.exphem.2018.06.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Oth O, Stene JJ, Glineur R, Vujovic A. [Injection of PRP (Platelet-rich plasma) as a treatment for androgenetic alopecia : a systematic review of the literature]. Rev Med Brux 2018; 39:438-446. [PMID: 29869472 DOI: 10.30637/2018.17-056] [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] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
INTRODUCTION Androgenetic alopecia is the most frequent alopecia both in men and women. Despite it affects a large proportion of the population, they are few therapeutic options often restrictive. The injection of PRP in alopecic areas is a new and easy therapeutic option. The aim of this article is to systematically review the literature about this topic by analysing the articles describing the clinical results of this new technique in the treatment of androgenetic alopecia in men and / or women with a follow-up of minimum 6 months. MATERIAL AND METHODS A systematic review of the PRISMA type from several databases was carried out and identified 7 articles meeting the following inclusion criteria: 1) articles describing the clinical results of the injection of PRP for the treatment of androgenetic alopecia, 2 ) in men and / or women, 3) written in English or French, 4) with clinical follow-up of at least 6 months, and 5) with objective criteria for follow-up of patients and observed complications. These prospective clinical studies are analyzed and compared qualitatively. CONCLUSION This systematic review of the literature resulted in a qualitative analysis of 7 scientific studies on the effect of PRP injection as a treatment for androgenetic alopecia. Although all the studies concluded in a favorable effect of this new treatment, a larger, rigorous study with objective analysis of the therapeutic effect is necessary.
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Affiliation(s)
- O Oth
- Service de Chirurgie orale et maxillo-faciale, Hôpital Erasme, ULB
| | - J-J Stene
- Clinique du cheveu, Service de Dermatologie, CHU Saint-Pierre (César de Paepe), ULB
| | - R Glineur
- Service de Chirurgie orale et maxillo-faciale, Hôpital Erasme, ULB
| | - A Vujovic
- Clinique du cheveu, Service de Dermatologie, CHU Saint-Pierre (César de Paepe), ULB
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Ramovs K, Vujovic A. PROVIDING INTERGENERATIONAL PROGRAMS AND SERVICES FOR QUALITY AGEING IN DIFFERENT LOCAL ENVIRONMENTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.2788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- K. Ramovs
- Anton Trstenjak Institute of Gerontology and Intergenerational Relations, Ljubljana, Slovenia
| | - A. Vujovic
- Anton Trstenjak Institute of Gerontology and Intergenerational Relations, Ljubljana, Slovenia
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Debroy Kidambi A, Dobson K, Holmes S, Carauna D, Del Marmol V, Vujovic A, Kaur M, Takwale A, Farrant P, Champagne C, Harries M, Messenger A. Frontal fibrosing alopecia in men: an association with facial moisturizers and sunscreens. Br J Dermatol 2017; 177:260-261. [DOI: 10.1111/bjd.15311] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | - K. Dobson
- Royal Hallamshire Hospital; Sheffield U.K
| | - S. Holmes
- Southern General Hospital; Glasgow U.K
| | | | - V. Del Marmol
- Hopital Erasme; Université Libre de Bruxelles; Brussels Belgium
| | - A. Vujovic
- Hopital Erasme; Université Libre de Bruxelles; Brussels Belgium
| | | | - A. Takwale
- Gloucestershire Royal Hospital; Gloucester U.K
| | - P. Farrant
- Brighton and Sussex Hospitals; Brighton U.K
| | | | - M. Harries
- University of Manchester; Salford Royal Foundation Trust; Salford U.K
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Vujovic A, André J, Salmon D, Harag S, Dangoisse C, Kolivras A. Épidémiologie et prise en charge des teignes du cuir chevelu. Ann Dermatol Venereol 2014. [DOI: 10.1016/j.annder.2014.09.294] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Savic Vujovic K, Vujovic A, Vuckovic S, Srebro D, Medic B, Prostran M. EPA-0510 - A comparison of the effect of morphine and fentanyl derivatives on the antinociception and body temperature in rats. Eur Psychiatry 2014. [DOI: 10.1016/s0924-9338(14)77913-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Srebro D, Vuckovic S, Savic Vujovic K, Medic B, Stojanovic R, Vujovic A, Prostran M. EPA-1109 - Nmda receptor antagonists as analgesics in a rat model of visceral pain. Eur Psychiatry 2014. [DOI: 10.1016/s0924-9338(14)78380-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Arsenijevic T, Vujovic A, Libert F, Op de Beeck A, Hébrant A, Janssens S, Grégoire F, Lefort A, Bolaky N, Perret J, Caspers L, Willermain F, Delporte C. Hyperosmotic stress induces cell cycle arrest in retinal pigmented epithelial cells. Cell Death Dis 2013; 4:e662. [PMID: 23744362 PMCID: PMC3702301 DOI: 10.1038/cddis.2013.189] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Osmotic changes occur in many tissues and profoundly influence cell function. Herein, we investigated the effect of hyperosmotic stress on retinal pigmented epithelial (RPE) cells using a microarray approach. Upon 4-h exposure to 100 mM NaCl or 200 mM sucrose, 79 genes were downregulated and 72 upregulated. Three gene ontology categories were significantly modulated: cell proliferation, transcription from RNA polymerase II promoter and response to abiotic stimulus. Fluorescent-activated cell sorting analysis further demonstrated that owing to hyperosmotic stimulation for 24 h, cell count and cell proliferation, as well as the percentage of cells in G0/G1 and S phases were significantly decreased, whereas the percentage of cells in G2/M phases increased, and apoptosis and necrosis remained unaffected. Accordingly, hyperosmotic conditions induced a decrease of cyclin B1 and D1 expression, and an activation of the p38 mitogen-activated protein kinase. In conclusion, our results demonstrate that hypertonic conditions profoundly affect RPE cell gene transcription regulating cell proliferation by downregulation cyclin D1 and cyclin B1 protein expression.
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Affiliation(s)
- T Arsenijevic
- Laboratory of Pathophysiological and Nutritional Biochemistry, Université Libre de Bruxelles, Brussels, Belgium
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Vujovic A, Spasojevic-Kalimanovska V, Bogavac-Stanojevic N, Kotur-Stevuljevic J, Sopic M, Stefanovic A, Baralic I, Djordjevic B, Jelic-Ivanovic Z, Spasic S. Lymphocyte Cu/ZnSOD and MnSOD Gene Expression Responses to Intensive Endurance Soccer Training. BIOTECHNOL BIOTEC EQ 2013. [DOI: 10.5504/bbeq.2012.0144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Martinovic J, Dopsaj V, Dopsaj MJ, Kotur-Stevuljevic J, Vujovic A, Stefanovic A, Nesic G. Long-term Effects of Oxidative Stress in Volleyball Players. Int J Sports Med 2009; 30:851-6. [DOI: 10.1055/s-0029-1238289] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Kotur-Stevuljevic J, Spasic S, Jelic-Ivanovic Z, Spasojevic-Kalimanovska V, Stefanovic A, Vujovic A, Memon L, Kalimanovska-Ostric D. PON1 status is influenced by oxidative stress and inflammation in coronary heart disease patients. Clin Biochem 2008; 41:1067-73. [DOI: 10.1016/j.clinbiochem.2008.06.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2008] [Revised: 06/04/2008] [Accepted: 06/10/2008] [Indexed: 11/26/2022]
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Zeljkovic A, Spasojevic-Kalimanovska V, Vekic J, Jelic-Ivanovic Z, Topic A, Bogavac-Stanojevic N, Spasic S, Vujovic A, Kalimanovska-Ostric D. Does simultaneous determination of LDL and HDL particle size improve prediction of coronary artery disease risk? Clin Exp Med 2008; 8:109-16. [PMID: 18618221 DOI: 10.1007/s10238-008-0165-z] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2007] [Accepted: 12/10/2007] [Indexed: 10/21/2022]
Abstract
BACKGROUND Alterations in plasma lipoprotein subclass distribution affect the risk for coronary artery disease (CAD). However, it is unclear whether the determination of low-density lipoprotein (LDL) and high-density lipoprotein (HDL) phenotypes may or may not improve the ability to predict CAD development. METHODS Polyacrylamide gradient (3-31%) gel electrophoresis was used to simultaneously determine size and distribution of lipoprotein subclasses in 181 CAD patients and 178 controls. RESULTS Mean LDL and HDL subclass sizes were significantly smaller in patients than in controls (p < 0.001). Multivariate logistic regression analysis showed that small dense LDL particles were independent CAD risk predictors (OR = 2.867, p < 0.01), even when adjusted for other traditional risk factors, while small HDL particles lost their significance after adjustment (OR = 2.071, p = 0.054). The area under the ROC curve for LDL (0.671) and HDL (0.643) particle size measurement demonstrated low clinical accuracy when compared to the combination of traditional lipid risk factor measurements. CONCLUSIONS CAD is associated with the predominance of smaller LDL and HDL particles. However, simultaneous determination of these two lipoprotein phenotypes provides no additional power in discriminating CAD and non-CAD subjects, beyond that obtained by the traditional risk factors.
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Moretti R, Vujovic A, Benda N. [Research on HBsAg: comparison between two methods of the third generation, RPHA and IEA]. Quad Sclavo Diagn 1982; 18:209-14. [PMID: 6762575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Two tests of the 3rd generation were evaluated for the identification of HBsAg: the reverse hemoagglutination and the enzymatic immunoassay. The results of the study, carried out on 2,434 sera of occasional and periodic donors, have been slightly discordant. It was confirmed the greater sensibility of the IEA test over the RHA and there was a high incidence of false positive results of the IEA test probably caused by the presence in the sera of an elevated concentration of lipid and/or Hb. However, we can consider the RHA a useful test adaptable as an emergency test while the IEA method, being more sensible, can be used as a basic screening test.
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Vujovic A. [Current opinions on the enzymatic aspect of blood coagulation and the hemostatic mechanism]. Quad Sclavo Diagn 1982; 18:34-44. [PMID: 7156331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Vujovic A. [Australia antigen and virus-hepatitis type B (author's transl)]. Ann Sclavo 1978; 20:106-11. [PMID: 736635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Vujovic A. [Frequency of Du variant and Kell antigen in people of Cagli (author's transl)]. Quad Sclavo Diagn 1977; 13:464-7. [PMID: 96479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Vujovic A, Leli U, Carotti A. Evaluation of haemoagglutination techniques for detection of hepatitis B associated antigen. Quad Sclavo Diagn 1977; 13:254-6. [PMID: 594312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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