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1.
Eur J Rheumatol ; 6(3): 136-141, 2019 07.
Article in English | MEDLINE | ID: mdl-31329541

ABSTRACT

OBJECTIVE: We aimed to assess the implementation of the treat-to-target (T2T) concept in rheumatoid arthritis (RA) patients in daily practice. METHODS: All RA patients visiting one of the 7 academic medical centers in Israel in June 2015 with at least 3 previous clinic visits were included in this study. A common questionnaire was used to collect data from patients' medical records, and two independent rheumatologists evaluated the collected data for the implementation of the T2T concept. The associations between T2T implementation and the categorical and continuous variables were assessed. RESULTS: The study included 724 patients with a mean (standard deviation) age of 62.6 (13.97) years and 575 (80.4%) of them were women. Four centers used more than one scoring method, with Disease Activity Score-28 and Clinical Disease Activity Index) being most commonly used. Only 276 (38.1%) patients had disease score results in ≥3 visits, and the T2T recommendations were implemented for 245 (33.8%) of the 724 patients. The rate of implementation was higher in younger (p=0.028) rheumatoid factor-positive patients (p=0.011) and varied between centers (11.1%-87% p<0.0001). T2T implementation did not correlate to gender, place of residence, education, tobacco use, treatment regimens, and presence of erosions or comorbidities. CONCLUSION: The T2T concept was implemented on only 33.8% of patients and was not affected by RA disease severity. Further studies are needed to determine the reasons for this deviation from the T2T standard of care for RA as well as its consequences.

2.
J Am Acad Dermatol ; 76(4): 662-669.e1, 2017 Apr.
Article in English | MEDLINE | ID: mdl-28038888

ABSTRACT

BACKGROUND: Drug survival is defined as the time period of treatment with a certain drug until its cessation. The role of previous exposure to traditional systemic treatments in biologic survival is still unknown. OBJECTIVE: To investigate the drug survival rates of biologic treatments in patients with psoriasis and to identify predictor factors. METHODS: Survival analysis was performed on patients with severe psoriasis who received adalimumab, infliximab, etanercept, and ustekinumab for treatment of psoriasis, drawn from the Clalit Health Services database. Multivariate analysis was performed adjusting for demographic variables; metabolic syndrome and its components; psoriatic arthritis; biologic naivety; coadministration of methotrexate, acitretin, or cyclosporine; and previous standard systemic treatment exposure. RESULTS: Among 907 patients treated with 1575 biologic treatments, ustekinumab had a significantly higher survival rate than tumor necrosis factor inhibitors. Biologic naivety and concomitant methotrexate intake were positive predictors for drug survival, whereas the female sex and the duration of previous systemic treatments were negative predictors. LIMITATIONS: Data regarding disease severity or duration could not be drawn from the Clalit Health Services database. CONCLUSION: Ustekinumab had better retention rates in comparison with other investigated biologics in patients with severe psoriasis, most of whom used it as a third line therapy.


Subject(s)
Adalimumab/administration & dosage , Dermatologic Agents/administration & dosage , Etanercept/administration & dosage , Immunosuppressive Agents/administration & dosage , Infliximab/administration & dosage , Psoriasis/drug therapy , Ustekinumab/administration & dosage , Acitretin/therapeutic use , Adalimumab/therapeutic use , Adult , Databases, Factual , Dermatologic Agents/therapeutic use , Drug Substitution , Drug Therapy, Combination , Drug Tolerance , Etanercept/therapeutic use , Female , Humans , Immunosuppressive Agents/therapeutic use , Infliximab/therapeutic use , Interleukin-12 Receptor beta 1 Subunit/antagonists & inhibitors , Israel , Male , Metabolic Syndrome/complications , Methotrexate/therapeutic use , Middle Aged , Psoriasis/complications , Time Factors , Tumor Necrosis Factor-alpha/antagonists & inhibitors , Ustekinumab/therapeutic use
3.
Clin Rheumatol ; 33(9): 1337-40, 2014 Sep.
Article in English | MEDLINE | ID: mdl-24599679

ABSTRACT

Rituximab is a monoclonal antibody directed against the CD20 antigen on the surface of normal and malignant B lymphocytes. Its use in autoimmune conditions is rapidly expanding. Late-onset neutropenia (LON) is a well-recognized side effect of rituximab therapy in lymphoma patients. Only a small number of cases of LON have been reported in patients with autoimmune disorders. The aim of this work is to review cases in Israel and to compare them to published cases in the literature thus adding to the body of knowledge regarding this unusual phenomenon. Members of the Israeli Rheumatology Association were encountered by e-mail, requesting reports of cases of LON after therapy with rituximab. Submitted cases were reviewed, with demographics and clinical data collated and tabled. Current cases were compared to previously published rheumatology cases. Twelve episodes of LON following rituximab therapy were reported. All patients were female with an average age of 50 years (range 22-78). LON occurred at an average of 155 days after therapy (range 71-330). The average leukocyte count was 1,456 white cells, with an average of 413 neutrophils (range 0-1,170 neutrophils). Three of the patients underwent bone marrow biopsies which showed white cell line maturation arrest with an increased number of lymphocytes. No blasts were seen. Our results add support to the growing evidence that this adverse event usually follows a benign course and is not an absolute contraindication for repeat treatment if required in the future. However, vigilance is recommended with routine periodic blood counts, especially 5 months following rituximab administration when the risk is expected to be the highest.


Subject(s)
Antibodies, Monoclonal, Murine-Derived/adverse effects , Antirheumatic Agents/adverse effects , Arthritis, Rheumatoid/drug therapy , Lupus Erythematosus, Systemic/drug therapy , Mixed Connective Tissue Disease/drug therapy , Neutropenia/chemically induced , Adult , Aged , Antibodies, Monoclonal, Murine-Derived/therapeutic use , Antirheumatic Agents/therapeutic use , Female , Humans , Middle Aged , Rituximab , Young Adult
4.
RNA ; 19(5): 591-604, 2013 May.
Article in English | MEDLINE | ID: mdl-23474544

ABSTRACT

Alternative mRNA splicing is a major mechanism for gene regulation and transcriptome diversity. Despite the extent of the phenomenon, the regulation and specificity of the splicing machinery are only partially understood. Adenosine-to-inosine (A-to-I) RNA editing of pre-mRNA by ADAR enzymes has been linked to splicing regulation in several cases. Here we used bioinformatics approaches, RNA-seq and exon-specific microarray of ADAR knockdown cells to globally examine how ADAR and its A-to-I RNA editing activity influence alternative mRNA splicing. Although A-to-I RNA editing only rarely targets canonical splicing acceptor, donor, and branch sites, it was found to affect splicing regulatory elements (SREs) within exons. Cassette exons were found to be significantly enriched with A-to-I RNA editing sites compared with constitutive exons. RNA-seq and exon-specific microarray revealed that ADAR knockdown in hepatocarcinoma and myelogenous leukemia cell lines leads to global changes in gene expression, with hundreds of genes changing their splicing patterns in both cell lines. This global change in splicing pattern cannot be explained by putative editing sites alone. Genes showing significant changes in their splicing pattern are frequently involved in RNA processing and splicing activity. Analysis of recently published RNA-seq data from glioblastoma cell lines showed similar results. Our global analysis reveals that ADAR plays a major role in splicing regulation. Although direct editing of the splicing motifs does occur, we suggest it is not likely to be the primary mechanism for ADAR-mediated regulation of alternative splicing. Rather, this regulation is achieved by modulating trans-acting factors involved in the splicing machinery.


Subject(s)
Adenosine Deaminase/genetics , Alternative Splicing/genetics , RNA Precursors/genetics , RNA, Messenger/genetics , Adenosine/genetics , Adenosine/metabolism , Adenosine Deaminase/metabolism , Base Sequence , Cell Line, Tumor , Exons/genetics , Gene Expression Regulation , Humans , Inosine/genetics , RNA Editing/genetics , RNA-Binding Proteins
5.
Oral Oncol ; 47(10): 946-50, 2011 Oct.
Article in English | MEDLINE | ID: mdl-21824802

ABSTRACT

The phosphoinositide 3-kinase (PI3K)/v-akt murine thymoma (AKT) viral oncogene pathway is involved in regulating the signaling of multiple biological processes such as apoptosis, metabolism, cell proliferation, and cell growth. Mutations in the genes associated with the PI3K/AKT pathway including PI3K, AKT, RAS and PTEN, are infrequently found within head and neck squamous cell carcinoma and more specifically are rarely reported in oral squamous cell carcinoma (OSCC) cases. We aimed to investigate the frequency of mutations in AKT1, PTEN, PIK3CA, and RAS (K-RAS, N-RAS, H-RAS) genes in 37 cases of oral squamous cell carcinoma (OSCC). Mutational analysis of PTEN, RAS, PIK3CA and AKT genes was performed using chip-based matrix-assisted laser desorption time-of-flight (MALDI-TOF) mass spectrometry and by direct sequencing. The only gene mutated in our series was the PIK3CA. Missense mutations of the PIK3CA gene were found in 4 of our cases (10.8%); no correlation has been found with oral location, stage and survival. The absence of mutations in AKT1, PTEN, and RAS genes in the present study is in accordance with previous studies confirming that these genes are rarely mutated in OSCC. Our data confirm that PIK3CA is important to OSCC tumorigenesis and can contribute to oncogene activation of the PIK3CA/AKT pathway in OSCC. The knowledge of the PIK3CA's involvement in OSCC is important because a specific kinase inhibitor could be considered as a future therapeutic option for OSCC patients with PIK3CA mutations.


Subject(s)
Carcinoma, Squamous Cell/genetics , Mouth Neoplasms/genetics , PTEN Phosphohydrolase/genetics , Phosphatidylinositol 3-Kinases/genetics , Proto-Oncogene Proteins c-akt/genetics , Adult , Aged , Aged, 80 and over , Class I Phosphatidylinositol 3-Kinases , DNA Mutational Analysis , Female , Gene Expression Regulation, Neoplastic , Genes, ras/genetics , Humans , Male , Middle Aged , Prognosis , Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization , Young Adult
6.
Genes Chromosomes Cancer ; 49(1): 17-27, 2010 Jan.
Article in English | MEDLINE | ID: mdl-19787791

ABSTRACT

Multiple myeloma (MM) is a malignancy of the plasma cells (PCs) characterized by a wide variety of genetic and chromosomal abnormalities. In recent years, major attention was drawn to the significance of chromosomal aberrations involving chromosome arm 13q and the IGH region on chromosome band 14q32 as a prognostic indicator in MM. In this study we applied a combined cell morphology and FISH method for the analysis of coexistence of t(11;14)(q13;q32) with deletions of the long arm of chromosome 13 (Delta13) in PCs from 51 MM patients using several probes for the 13q14, 11q13, and IGH regions. We found 15 different variants of the t(11;14) that are the consequence of different 11q13 breakpoints and various deletions of Variable (del IGH Var) or Constant (del IGH Const) IGH segments and also duplications and losses of the IGH gene on the normal nontranslocated chromosome 14 as well as IGH/Cyclin D1 (CCND1) fusion on der(14) and CCND1/IGH fusions on der(11). A strong association between Delta13 and specific variants of t(11;14) was found: variants with deletion of the IGH gene or its segments were found only in MM cases with deleted chromosome 13, while the common translocation t(11;14) was found only in the MM cases with normal chromosome arm 13q. In contrast, we did not find any association between Delta13 and deletions of the IGH gene or its segments in the MM patients with t(4;14)(p16;q32).


Subject(s)
Chromosome Aberrations , Chromosomes, Human, Pair 11 , Chromosomes, Human, Pair 13 , Chromosomes, Human, Pair 14 , Immunoglobulin Heavy Chains/genetics , Multiple Myeloma/genetics , Cell Shape , Chromosome Breakage , Chromosome Deletion , Cyclin D1/genetics , Humans , In Situ Hybridization, Fluorescence , Prognosis , Translocation, Genetic
7.
Gen Comp Endocrinol ; 150(2): 326-36, 2007 Jan 15.
Article in English | MEDLINE | ID: mdl-17094989

ABSTRACT

Members of the insulin family of hormones are generally not regarded as gender-specific, although there is sporadic evidence for the possible involvement of insulin pathways in sexual differentiation. In crustaceans, sexual differentiation is controlled by the androgenic gland (AG), an organ unique to males. To date, attempts to identify active AG factors in decapods through either classical purification methods or sequence similarity with isopod AG hormones have proven unsuccessful. In the present study, the first subtractive cDNA library from a decapod AG was constructed from the red-claw crayfish Cherax quadricarinatus. During library screening, an AG-specific gene, expressed exclusively in males even at early stages of maturation and termed Cq-IAG (C. quadricarinatus insulin-like AG factor), was discovered. In situ hybridization of Cq-IAG confirmed the exclusive localization of its expression to the AG. Following cloning and complete sequencing of the gene, its cDNA was found to contain 1445 nucleotides encoding a deduced translation product of 176 amino acids. The proposed protein sequence encompasses Cys residue and putative cleaved peptide patterns whose linear and 3D organization are similar to those of members of the insulin/insulin-like growth factor/relaxin family and their receptor recognition surface. The identification of Cq-IAG is the first report of a pro-insulin-like gene expressed in a decapod crustacean in a gender-specific manner. Its expression in a male-specific endocrine gland controlling sex differentiation supports the notion that insulin may have evolved in the context of regulating sexual differentiation.


Subject(s)
Astacoidea/genetics , Gonads/physiology , Insulin/genetics , Sex Differentiation/genetics , Amino Acid Sequence , Animals , Astacoidea/metabolism , Base Sequence , Blotting, Northern , DNA, Complementary/genetics , Expressed Sequence Tags , Gonads/metabolism , In Situ Hybridization , Insulin/biosynthesis , Male , Models, Molecular , Molecular Sequence Data , Phylogeny , Reverse Transcriptase Polymerase Chain Reaction , Sequence Alignment
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