ABSTRACT
The treatment landscape for multiple myeloma has significantly evolved in the last decade. Notwithstanding, a large proportion of patients continue to relapse and novel combinations continue to be needed. In this phase II study, selinexor, a first-in-class inhibitor of exportin-1 was evaluated in combination with standard daratumumab-bortezomib-dexamethasone (DVd), for the treatment of relapsed and refractory multiple myeloma (RRMM). The aim of the trial was to assess the efficacy and safety of the combination of selinexor with DVd (S-DVd). A total of 57 patients were enrolled in the two parts of the study. Part 1 enrolled a heavily pretreated population with at least three prior lines (PL) of therapy and part 2 enrolled an early relapse population with at least one PL of therapy. The primary endpoint was complete response (CR) rate in part 2 and overall response rate (ORR) in part 1. In the latter, 24 patients were treated with a median of three PL. Overall response rate (ORR) was 50% with two CR. Median progression- free survival (PFS) was 7 months. In part 2, 33 patients were enrolled, with a median of one PL. ORR was 82% and CR or better was 33%. Median PFS was 24 months. In lenalidomide-refractory patients, a median PFS of 22.1 months was observed. Thrombocytopenia was the most common hematological adverse event (69%; grade 3-4: 34%) and nausea, the most frequent non-hematological adverse event (38%; grade 3-4: 6%). Sixty-two percent of the patients required dose modifications. In summary, although the primary endpoint of the study was not met, the combination of S-DVd showed encouraging clinical efficacy with a generally manageable safety profile representing a potential option for the treatment of RRMM patients.
Subject(s)
Antibodies, Monoclonal , Antineoplastic Combined Chemotherapy Protocols , Bortezomib , Dexamethasone , Hydrazines , Multiple Myeloma , Triazoles , Humans , Multiple Myeloma/drug therapy , Multiple Myeloma/mortality , Male , Female , Aged , Middle Aged , Dexamethasone/administration & dosage , Dexamethasone/therapeutic use , Triazoles/administration & dosage , Triazoles/therapeutic use , Triazoles/adverse effects , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Bortezomib/administration & dosage , Bortezomib/therapeutic use , Hydrazines/administration & dosage , Hydrazines/therapeutic use , Hydrazines/adverse effects , Antibodies, Monoclonal/therapeutic use , Antibodies, Monoclonal/administration & dosage , Antibodies, Monoclonal/adverse effects , Aged, 80 and over , Adult , Treatment Outcome , Drug Resistance, Neoplasm , RecurrenceABSTRACT
Mendelian susceptibility to mycobacterial disease (MSMD) is a rare genetic disorder characterized by impaired immunity against intracellular pathogens, such as mycobacteria, attenuated Mycobacterium bovis-Bacillus Calmette-Guérin (BCG) vaccine strains, and environmental mycobacteria in otherwise healthy individuals. Retrospective study reviewed the clinical, immunological, and genetic characteristics of patients with MSMD in Mexico. Overall, 22 patients diagnosed with MSMD from 2006 to 2021 were enrolled: 14 males (64%) and eight females. After BCG vaccination, 12 patients (70%) developed BCG infection. Furthermore, 6 (22%) patients developed bacterial infections mainly caused by Salmonella, as what is described next in the text is fungal infections, particularly Histoplasma. Seven patients died of disseminated BCG disease. Thirteen different pathogenic variants were identified in IL12RB1 (n = 13), IFNGR1 (n = 3), and IFNGR2 (n = 1) genes. Interleukin-12Rß1 deficiency is the leading cause of MSMD in our cohort. Morbidity and mortality were primarily due to BCG infection.
Subject(s)
Mycobacterium Infections , Mycobacterium bovis , Male , Female , Humans , Retrospective Studies , BCG Vaccine , Genetic Predisposition to Disease , Mexico/epidemiology , Receptors, Interleukin-12/genetics , Mycobacterium Infections/epidemiology , Mycobacterium Infections/geneticsABSTRACT
INTRODUCTION: Parastomal hernias are frequent and highly recurrent. The sandwich technique is a combination of the keyhole and Sugarbaker techniques, using a double intraperitoneal mesh. The objective of this study was to assess the outcomes of the sandwich technique, specifically focusing on recurrence rates. MATERIALS AND METHODS: Observational retrospective study conducted in two tertiary referral centers in Catalonia, Spain. All consecutive patients who underwent parastomal hernia repair using the sandwich technique between 1st January 2016 and 31st December 2021 were included. RESULTS: A total of 38 patients underwent the laparoscopic sandwich technique for parastomal hernia repair. The overall recurrence rate was 7.9% (3/38), with a median follow-up of 39 months (IQR: 12.3-56.5). According to the EHS classification for parastomal hernia, there were 47.4% (18/38) type I defects, 10.5% (4/38) type II defects, 28.9% (11/38) type III defects, and 13.2% (5/38) type IV defects. The used mesh was predominantly TiMesh® (76.3%; 29/38), followed by DynaMesh® IPOM (23.7%; 9/38). Patients with recurrence exhibited higher rates of seroma, hematoma, surgical site infection, and one case of early recurrence attributed to mesh retraction. Consequently, postoperative complications emerged as the primary risk factor for hernia recurrence. CONCLUSION: The sandwich technique demonstrated recurrence rates consistent with those reported in the existing literature.
Subject(s)
Hernia, Ventral , Incisional Hernia , Laparoscopy , Humans , Hernia, Ventral/etiology , Hernia, Ventral/surgery , Herniorrhaphy/methods , Incisional Hernia/surgery , Incisional Hernia/complications , Laparoscopy/adverse effects , Laparoscopy/methods , Recurrence , Retrospective Studies , Risk Factors , Surgical Mesh/adverse effectsABSTRACT
In this study, conditions for the ultrasound-assisted extraction (UAE) of soluble polyphenols from Psidium cattleianum (PC) leaves were optimized using response surface methodology (RSM) by assessing the effect of extraction time (XET = 2, 4, and 6 min), sonication amplitude (XSA = 60, 80, and 100%), and pulse cycle (XPC = 0.4, 0.7, and 1 s). Furthermore, the optimized UAE conditions were compared with a conventional aqueous-organic extraction (AOE) method for extracting total phenolics; moreover, a phenolic profile using HPLC and antioxidant activity (DPPH, ABTS, and FRAP) were also compared. According to the RSM, the best conditions for UAE to extract the highest soluble polyphenol content and yield (158.18 mg/g dry matter [DM] and 15.81%) include a 100% sonication amplitude for 4 min at 0.6 s of pulse cycle. The optimal UAE conditions exhibited an effectiveness of 1.71 times in comparison to the AOE method for extracting total phenolics, in 96.66% less time; moreover, PC leaf extracts by UAE showed higher antioxidant values than AOE. Additionally, gallic, protocateic, chlorogenic, caffeic, coumaric, trans-cinnamic, 4-hydroxybenzoic, and syringic acids, as well as kaempferol were identified in PC leaves under UAE. PC leaf extracts are widely used for therapeutic and other industrial purposes; thus, the UAE proves to be a useful technology with which to improve the yield extraction of PC leaf phytochemicals.
Subject(s)
Psidium , Antioxidants , Phenols/chemistry , Plant Extracts/chemistry , PolyphenolsABSTRACT
Twenty-five percent of cases of endometrial cancer appear in women with unfulfilled reproductive desires. An adequate selection of patients and a close hysteroscopic follow-up to monitor the endometrial response to the levonorgestrel-releasing intrauterine system (LNG-IUS) may be a valid and safe option for these patients. This is a case series and review of the literature study. We included eight patients diagnosed of complex endometrial hyperplasia with atypia (CEHA) or stage 1AG1 well-differentiated endometrial cancer without myometrial invasion who desired to get pregnant and opted for a conservative treatment. Follow-up was performed with hysteroscopy and directed biopsy at 3, 6 and 12 months. Of the 854 cases of complex endometrial hyperplasia with atypia (CEHA)/endometrial cancer were diagnosed, 2.3% were candidates for conservative management. We obtained a favourable regression of 71.2% at 6 months and 57% at one year with hormonal treatment. Conservative treatment in complex endometrial hyperplasia with atypia (CEHA)/low-grade endometrial cancer in reproductive age patients with a strong desire for pregnancy is feasible.
Subject(s)
Contraceptive Agents, Female , Endometrial Hyperplasia , Endometrial Neoplasms , Intrauterine Devices, Medicated , Pregnancy , Humans , Female , Endometrial Hyperplasia/drug therapy , Endometrial Hyperplasia/pathology , Levonorgestrel/therapeutic use , Conservative Treatment , Hysteroscopy , Endometrial Neoplasms/therapy , Endometrial Neoplasms/pathologyABSTRACT
BACKGROUND: Safeguarding the right to die according to the principles of autonomy and freedom of each person has become more important in the last decade, therefore increasing regulation of Euthanasia and Medically Assisted Suicide (MAS). AIMS: To learn the opinions that the nurses of the autonomous region of Madrid have regarding Euthanasia and Medically Assisted Suicide. RESEARCH DESIGN: Cross-sectional descriptive study. PARTICIPANTS AND RESEARCH CONTEXT: All registered nurses in Madrid. The study was done by means of a self-completed anonymous questionnaire. The variables studied were social-demographic, giving opinions about Euthanasia and MAS. ETHICAL CONSIDERATIONS: Each participant was assured maximum confidentiality and anonymity, ensuring the ethical principles set out in the Declaration of Helsinki, as well as in the Organic Law 3/2018, on Personal Data Protection and guarantee of digital rights. FINDINGS: A total of 489 nurses answered the questionnaire. In total, 75.7% of the nurses confirmed that Euthanasia should be regulated in Spain. 66.3% indicated that information on Euthanasia should be provided jointly by doctors and nurses, and 42.3% considered that it could be applied by both medical and nursing professionals. A total of 87.2% advocated the participation of nurses in health policy, influencing the drafting of the law. In the face of possible regulation, 35% would request Conscientious Objection, being closely related to their religious beliefs. DISCUSSION: Different authors point out that nurses' perceptions and attitudes towards Euthanasia are conditioned by different factors, such as religion, gender, poor palliative care, legality and the patient's right to die. CONCLUSION: Nurses are positioned in favour of the regulation and practice of Euthanasia and MAS, depending on their age, years of experience, training, model of care and especially religious beliefs.
Subject(s)
Euthanasia , Nurses , Suicide, Assisted , Humans , Cross-Sectional Studies , Attitude of Health Personnel , Palliative Care , Surveys and QuestionnairesABSTRACT
BACKGROUND: An association between the severity of coronavirus disease 2019 (COVID-19) and the presence of certain chronic conditions has been suggested. However, unlike influenza and other viruses, the disease burden of COVID-19 in patients with asthma has been less evident. OBJECTIVE: To understand the impact of COVID-19 in patients with asthma. METHODS: Using big-data analytics and artificial intelligence through the SAVANA Manager clinical platform, we analysed clinical data from patients with asthma from January 1 to May 10, 2020. RESULTS: Out of 71â182 patients with asthma, 1006 (1.41%) suffered from COVID-19. Compared to asthmatic individuals without COVID-19, patients with asthma and COVID-19 were significantly older (55 versus 42â years), predominantly female (66% versus 59%), smoked more frequently and had higher prevalence of hypertension, dyslipidaemias, diabetes and obesity. Allergy-related factors such as rhinitis and eczema were less common in asthmatic patients with COVID-19 (p<0.001). In addition, higher prevalence of these comorbidities was observed in patients with COVID-19 who required hospital admission. The use of inhaled corticosteroids (ICS) was lower in patients who required hospitalisation due to COVID-19, as compared to non-hospitalised patients (48.3% versus 61.5%; OR 0.58, 95% CI 0.44-0.77). Although patients treated with biologics (n=865; 1.21%) showed increased severity and more comorbidities at the ear, nose and throat level, COVID-19-related hospitalisations in these patients were relatively low (0.23%). CONCLUSION: Patients with asthma and COVID-19 were older and at increased risk due to comorbidity-related factors. ICS and biologics are generally safe and may be associated with a protective effect against severe COVID-19 infection.
Subject(s)
Asthma/complications , COVID-19/complications , Adolescent , Adult , Aged , COVID-19/epidemiology , Female , Humans , Male , Middle Aged , Retrospective Studies , Young AdultABSTRACT
Despite the significant proportion of older patients with newly diagnosed multiple myeloma (MM), most clinical trials driving therapeutic decisions in routine practice include younger and presumably healthier patients than those in the real world. Furthermore, longitudinal studies suggest that elderly, transplant-ineligible patients with MM are not benefitting enough from new anti-MM agents. We retrospectively analyzed the profile of and treatment patterns and outcomes in 675 transplant-ineligible patients with MM who started frontline therapy in routine practice. The mean (SD) age was 75.6 (6.7) years; 152 (47.4%) had Eastern Cooperative Oncology Group performance status (ECOG PS) 2-4, and 73 (25.1%) had high cytogenetic risk. The most frequent frontline therapy was non-VMP bortezomib-based regimens (n=207; 30.7%), which were more frequent among patients with ECOG PS 0/1 and higher risk (e.g., international staging system (ISS) stage III, severely impaired glomerular filtrate rate (GFR), high lactate dehydrogenase (LDH), and high-risk cytogenetics); 185 patients (27.4%) started an attenuated (lite) VMP regimen, and 159 (23.6%) a VMP (VISTA) regimen. Median progression-free survival and overall survival (OS) were 15.3 months (95%CI 14.0-16.9) and 33.5 months (95%CI 29.1-37.2), respectively; 405 patients (78.2%) achieved partial response or better. Age, ECOG PS, ISS stage, serum LDH, GFR, cytogenetic risk, and treatment regimen significantly influenced OS. In this study, a remarkable proportion of transplant-ineligible patients with MM were older, frontline regimens were highly heterogeneous, and patients at higher risk often received less efficacious combinations. These findings suggest that clinicians have limited objective criteria for therapeutic decisions for this patient group.
Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Multiple Myeloma/drug therapy , Aged , Aged, 80 and over , Antineoplastic Combined Chemotherapy Protocols/administration & dosage , Bortezomib/administration & dosage , Bortezomib/adverse effects , Cyclophosphamide/administration & dosage , Cyclophosphamide/adverse effects , Dexamethasone/administration & dosage , Dexamethasone/adverse effects , Doxorubicin/administration & dosage , Doxorubicin/adverse effects , Female , Humans , Kaplan-Meier Estimate , Lenalidomide/administration & dosage , Lenalidomide/adverse effects , Male , Melphalan/administration & dosage , Melphalan/adverse effects , Prednisone/administration & dosage , Prednisone/adverse effects , Progression-Free Survival , Retrospective Studies , Treatment OutcomeABSTRACT
In mycobacterial infections, the number of cells from two newly discovered subpopulations of CD3+ myeloid cells are increased at the infection site; one type expresses the T cell receptor (CD3+TCRαß+) and the other does not (CD3+TCRαß-). The role of Mycobacterium tuberculosis (Mtb) virulence in generating these subpopulations and the ability of these cells to migrate remains unclear. In this study, monocyte-derived macrophages (MDMs) infected in vitro with either a virulent (H37Rv) or an avirulent (H37Ra) Mtb strain were phenotypically characterized based on three MDM phenotypes (CD3-, CD3+TCRαß+, and CD3+TCRαß-); then, their migration ability upon Mtb infection was evaluated. We found no differences in the frequency of CD3+ MDMs at 24 h of infection with either Mtb strain. However, H37Rv infection increased the frequency of CD3+TCRαß+ MDMs at a multiplicity of infection of 1 and altered the expression of CD1b, CD1c, and TNF on the surface of cells from both the CD3+ MDM subpopulations; it also modified the expression of CCR2, CXCR1, and CCR7, thus affecting CCL2 and IL-8 levels. Moreover, H37Rv infection decreased the migration ability of the CD3- MDMs, but not CD3+ MDMs. These results confirm that the CD3+ macrophage subpopulations express chemokine receptors that respond to chemoattractants, facilitating cell migration. Together, these data suggest that CD3+ MDMs are a functional subpopulation involved in the immune response against Mtb.
Subject(s)
CD3 Complex/metabolism , Cell Movement , Macrophages/cytology , Macrophages/metabolism , Mycobacterium tuberculosis/physiology , Receptors, Antigen, T-Cell/metabolism , Cellular Microenvironment , Humans , Inflammation/pathology , Ligands , Models, Biological , Monocytes/metabolism , Mycobacterium tuberculosis/pathogenicity , Phenotype , Receptors, Chemokine/metabolism , Receptors, Tumor Necrosis Factor/genetics , Receptors, Tumor Necrosis Factor/metabolism , Tuberculosis/immunology , Tuberculosis/microbiology , Tuberculosis/pathology , Tumor Necrosis Factor-alpha/genetics , Tumor Necrosis Factor-alpha/metabolism , VirulenceABSTRACT
RATIONALE: Associations between urban (outdoor) airborne particulate matter (PM) exposure and TB and potential biological mechanisms are poorly explored. OBJECTIVES: To examine whether in vivo exposure to urban outdoor PM in Mexico City and in vitro exposure to urban outdoor PM2.5 (< 2.5 µm median aerodynamic diameter) alters human host immune cell responses to Mycobacterium tuberculosis. METHODS: Cellular toxicity (flow cytometry, proliferation assay (MTS assay)), M. tuberculosis and PM2.5 phagocytosis (microscopy), cytokine-producing cells (Enzyme-linked immune absorbent spot (ELISPOT)), and signalling pathway markers (western blot) were examined in bronchoalveolar cells (BAC) and peripheral blood mononuclear cells (PBMC) from healthy, non-smoking, residents of Mexico City (n=35; 13 female, 22 male). In vivo-acquired PM burden in alveolar macrophages (AM) was measured by digital image analysis. MEASUREMENTS AND MAIN RESULTS: In vitro exposure of AM to PM2.5 did not affect M. tuberculosis phagocytosis. High in vivo-acquired AM PM burden reduced constitutive, M. tuberculosis and PM-induced interleukin-1ß production in freshly isolated BAC but not in autologous PBMC while it reduced constitutive production of tumour necrosis factor-alpha in both BAC and PBMC. Further, PM burden was positively correlated with constitutive, PM, M. tuberculosis and purified protein derivative (PPD)-induced interferon gamma (IFN-γ) in BAC, and negatively correlated with PPD-induced IFN-γ in PBMC. CONCLUSIONS: Inhalation exposure to urban air pollution PM impairs important components of the protective human lung and systemic immune response against M. tuberculosis. PM load in AM is correlated with altered M. tuberculosis-induced cytokine production in the lung and systemic compartments. Chronic PM exposure with high constitutive expression of proinflammatory cytokines results in relative cellular unresponsiveness.
Subject(s)
Lung/immunology , Mycobacterium tuberculosis/immunology , Particulate Matter/adverse effects , Urban Health/statistics & numerical data , Adult , Bronchoalveolar Lavage Fluid/immunology , Cell Survival/drug effects , Cell Survival/immunology , Cytokines/biosynthesis , Environmental Exposure/adverse effects , Environmental Exposure/analysis , Female , Flow Cytometry/methods , Host Microbial Interactions/immunology , Humans , Inflammation Mediators/metabolism , Male , Mexico , Middle Aged , Particle Size , Particulate Matter/analysis , Particulate Matter/pharmacology , Phagocytosis/drug effects , Phagocytosis/immunology , Young AdultABSTRACT
The macrophage innate immune response is outlined through recognition of the components of Mycobacterium tuberculosis. DNA of M. tuberculosis (MtbDNA) is recognized by macrophages, but the implications of this recognition are poorly characterized. Stimulation of murine macrophages with MtbDNA induces autophagy, a process that promotes elimination of intracellular pathogens. However, it remains unknown whether this or other phenomena also occur in human cells. In this work, we studied the innate response profiles of human macrophages after stimulation with DNA from virulent M. tuberculosis H37Rv. Human monocyte-derived macrophages were polarized into M1 and M2 phenotypes and stimulated with MtbDNA. The plasma membrane markers of the phenotype, production of TNF-α, and induction of autophagy were evaluated. Our results indicate that MtbDNA induced phenotypical changes, the significant production of TNF-α, and autophagy confirmed by the augmented expression of immunity related GTPase M (IRGM) and autophagy related ATG16L1 genes in M1 macrophages, whereas M2 macrophages exhibited limited responses. In addition, MtbDNA activation was TLR-9-dependent. Although TLR-9 expression was similar between M1 and M2 macrophages, only M1 macrophages were fully responsive to MtbDNA. In conclusion, MtbDNA recognition enhanced the antimicrobial mechanisms of M1 macrophages.
Subject(s)
Autophagy , DNA, Bacterial/isolation & purification , Macrophages/metabolism , Mycobacterium tuberculosis/genetics , Tumor Necrosis Factor-alpha/metabolism , DNA, Bacterial/genetics , Humans , Immunity, Innate , Monocytes , Mycobacterium tuberculosis/metabolism , Phenotype , Toll-Like Receptor 9/genetics , Toll-Like Receptor 9/metabolismABSTRACT
Persistence of chemoresistant minimal residual disease (MRD) plasma cells (PCs) is associated with inferior survival in multiple myeloma (MM). Thus, characterization of the minor MRD subclone may represent a unique model to understand chemoresistance, but to our knowledge, the phenotypic and genetic features of the MRD subclone have never been investigated. Here, we compared the antigenic profile of MRD vs diagnostic clonal PCs in 40 elderly MM patients enrolled in the GEM2010MAS65 study and showed that the MRD subclone is enriched in cells overexpressing integrins (CD11a/CD11c/CD29/CD49d/CD49e), chemokine receptors (CXCR4), and adhesion molecules (CD44/CD54). Genetic profiling of MRD vs diagnostic PCs was performed in 12 patients; 3 of them showed identical copy number alterations (CNAs), in another 3 cases, MRD clonal PCs displayed all genetic alterations detected at diagnosis plus additional CNAs that emerged at the MRD stage, whereas in the remaining 6 patients, there were CNAs present at diagnosis that were undetectable in MRD clonal PCs, but also a selected number of genetic alterations that became apparent only at the MRD stage. The MRD subclone showed significant downregulation of genes related to protein processing in endoplasmic reticulum, as well as novel deregulated genes such as ALCAM that is prognostically relevant in MM and may identify chemoresistant PCs in vitro. Altogether, our results suggest that therapy-induced clonal selection could be already present at the MRD stage, where chemoresistant PCs show a singular phenotypic signature that may result from the persistence of clones with different genetic and gene expression profiles. This trial was registered atwww.clinicaltrials.gov as #NCT01237249.
Subject(s)
Drug Resistance, Neoplasm , Multiple Myeloma/drug therapy , Multiple Myeloma/genetics , Neoplasm, Residual/drug therapy , Neoplasm, Residual/genetics , Aged , Bortezomib/administration & dosage , Cell Adhesion Molecules/metabolism , Dexamethasone/administration & dosage , Disease Progression , Down-Regulation , Female , Gene Expression Profiling , Gene Expression Regulation, Neoplastic , Genomics , Humans , Immunophenotyping , Integrins/metabolism , Lenalidomide , Male , Melphalan/administration & dosage , Models, Genetic , Multiple Myeloma/pathology , Neoplasm, Residual/pathology , Phenotype , Plasma Cells/pathology , Prednisone/administration & dosage , Prognosis , Thalidomide/administration & dosage , Thalidomide/analogs & derivativesABSTRACT
Bortezomib plus melphalan and prednisone (VMP) and lenalidomide plus low-dose dexamethasone (Rd) are 2 standards of care for elderly untreated multiple myeloma (MM) patients. We planned to use VMP and Rd for 18 cycles in a sequential or alternating scheme. Patients (233) with untreated MM, >65 years, were randomized to receive 9 cycles of VMP followed by 9 cycles of Rd (sequential scheme; n = 118) vs 1 cycle of VMP followed by 1 cycle of Rd, and so on, up to 18 cycles (alternating scheme; n = 115). VMP consisted of one 6-week cycle of bortezomib using a biweekly schedule, followed by eight 5-week cycles of once-weekly VMP. Rd included nine 4-week cycles of Rd. The primary end points were 18-month progression free survival (PFS) and safety profile of both schemes. The 18-month PFS was 74% and 80% in the sequential and alternating arms, respectively (P = .21). The sequential and alternating groups exhibited similar hematologic and nonhematologic toxicity. Both arms yielded similar complete response rate (42% and 40%), median PFS (32 months vs 34 months, P = .65), and 3-year overall survival (72% vs 74%, P = .63). The benefit of both schemes was remarkable in patients aged 65 to 75 years. In addition, achieving complete and immunophenotypic response was associated with better outcome. The present approach, based on VMP and Rd, is associated with high efficacy and acceptable toxicity profile with no differences between the sequential and alternating regimens. This trial was registered at www.clinicaltrials.gov as #NCT00443235.
Subject(s)
Antineoplastic Agents/therapeutic use , Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Dexamethasone/therapeutic use , Melphalan/therapeutic use , Multiple Myeloma/drug therapy , Aged , Antineoplastic Agents/administration & dosage , Antineoplastic Agents/adverse effects , Antineoplastic Combined Chemotherapy Protocols/administration & dosage , Antineoplastic Combined Chemotherapy Protocols/adverse effects , Bortezomib/administration & dosage , Bortezomib/adverse effects , Bortezomib/therapeutic use , Dexamethasone/administration & dosage , Dexamethasone/adverse effects , Female , Humans , Lenalidomide , Male , Melphalan/administration & dosage , Melphalan/adverse effects , Multiple Myeloma/diagnosis , Prednisone/administration & dosage , Prednisone/adverse effects , Prednisone/therapeutic use , Thalidomide/administration & dosage , Thalidomide/adverse effects , Thalidomide/analogs & derivatives , Thalidomide/therapeutic use , Treatment OutcomeABSTRACT
The value of minimal residual disease (MRD) in multiple myeloma (MM) has been more frequently investigated in transplant-eligible patients than in elderly patients. Because an optimal balance between treatment efficacy and toxicity is of utmost importance in patients with elderly MM, sensitive MRD monitoring might be particularly valuable in this patient population. Here, we used second-generation 8-color multiparameter-flow cytometry (MFC) to monitor MRD in 162 transplant-ineligible MM patients enrolled in the PETHEMA/GEM2010MAS65 study. The transition from first- to second-generation MFC resulted in increased sensitivity and allowed us to identify 3 patient groups according to MRD levels: MRD negative (<10(-5); n = 54, 34%), MRD positive (between <10(-4) and ≥10(-5); n = 20, 12%), and MRD positive (≥10(-4); n = 88, 54%). MRD status was an independent prognostic factor for time to progression (TTP) (hazard ratio [HR], 2.7; P = .007) and overall survival (OS) (HR, 3.1; P = .04), with significant benefit for MRD-negative patients (median TTP not reached, 70% OS at 3 years), and similar poorer outcomes for cases with MRD levels between <10(-4) and ≥10(-5) vs ≥10(-4) (both with a median TTP of 15 months; 63% and 55% OS at 3 years, respectively). Furthermore, MRD negativity significantly improved TTP of patients >75 years (HR, 4.8; P < .001), as well as those with high-risk cytogenetics (HR, 12.6; P = .01). Using second-generation MFC, immune profiling concomitant to MRD monitoring also contributed to identify patients with poor, intermediate, and favorable outcomes (25%, 61%, and 100% OS at 3 years, respectively; P = .01), the later patients being characterized by an increased compartment of mature B cells. Our results show that similarly to transplant candidates, MRD monitoring is one of the most relevant prognostic factors in elderly MM patients, irrespectively of age or cytogenetic risk. This trial was registered at www.clinicaltrials.gov as #NCT01237249.
Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Immunity/drug effects , Monitoring, Physiologic/methods , Multiple Myeloma/diagnosis , Multiple Myeloma/drug therapy , Aged , Aged, 80 and over , Biomarkers, Pharmacological/blood , Biomarkers, Tumor/blood , Dexamethasone/administration & dosage , Drug Monitoring/methods , Female , Humans , Immunity/physiology , Lenalidomide , Male , Melphalan/therapeutic use , Multiple Myeloma/blood , Multiple Myeloma/mortality , Neoplasm, Residual , Prednisone/therapeutic use , Prognosis , Survival Analysis , Thalidomide/administration & dosage , Thalidomide/analogs & derivatives , Vincristine/therapeutic useABSTRACT
OBJECTIVE: Clinical trials for patients with multiple myeloma (MM) using novel agent (NA)-based regimens before autologous stem cell transplantation (SCT) have shown improvement in response rates and progression-free survival (PFS); however they have failed to identify a significant overall survival (OS) benefit. The aim of this study was to analyze the potential impact of initial induction on the feasibility and outcome of subsequent treatment lines in a real clinical practice setting. METHODS: Patients with consecutive MM <70 years of age diagnosed between 1999 and 2009 were prospectively registered and classified as having received conventional chemotherapy induction regimens with new agents available at relapse (CC cohort, 89 patients) or as treated with NAs upfront (NA cohort, 65 patients). RESULTS: Patients in the NA cohort demonstrated a superior median PFS (2.8 years vs 1.6 years, P=.03) and also a median PFS from diagnosis to second progression (5.2 years vs 2.7 years, P=.003). After a median follow-up of 7 years, clear differences in OS were observed (7.97 years in NA cohort compared to 3.35 years in CC cohort, P<.001). CONCLUSIONS: New agent-based first-line induction treatments provide benefits in both PFS and beyond that point, contributing to a significant improvement in OS.
Subject(s)
Antineoplastic Combined Chemotherapy Protocols/therapeutic use , Hematopoietic Stem Cell Transplantation , Induction Chemotherapy/methods , Multiple Myeloma/therapy , Adult , Aged , Anthracyclines/therapeutic use , Dexamethasone/therapeutic use , Female , Humans , Immunologic Factors/therapeutic use , Male , Middle Aged , Multiple Myeloma/diagnosis , Multiple Myeloma/mortality , Prospective Studies , Proteasome Inhibitors/therapeutic use , Recurrence , Regression Analysis , Remission Induction , Survival Analysis , Transplantation, Autologous , Treatment OutcomeABSTRACT
Chronic hyperglycemia increases the carbon flux through the hexosamine pathway, allowing the accumulation of UDP-GlcNAc. UDP-GlcNAc is the sugar donor for the enzyme-mediated protein glycosylation event known as OGlcNAcylation. This posttranslational modification targets several transcription factors implicated in glucose toxicity, insulin resistance, and diabetes. Vitamin D plays an important role in glucose homeostasis and insulin secretion through transcriptional mechanisms mediated by its receptor (VDR). Vitamin D deficiency has been associated with higher susceptibility to bacterial diseases in diabetic patients. However, it has not been explored whether VDR is subject to OGlcNAcylation or whether high glucose affects its transcriptional or biological activities. The aim of this study was to evaluate the effect of hyperglycemia on VDR OGlcNAcylation and its effects on vitamin D-mediated transcription. We predicted potential OGlcNAcylation sites using free software. Our results showed that hyperglycemia (30 mM) induces the OGlcNAcylation of VDR in THP1 cells and in human macrophages derived from monocytes (MDM). This condition did not hamper the vitamin D-dependent activation of LL-37 gene expression, and even did not impair the macrophage bactericidal activity. Our study provides new insight into vitamin D receptor posttranslational modification that may have relevance on the physiological responses of long-term hyperglycemia.
Subject(s)
Macrophages/metabolism , N-Acetylglucosaminyltransferases/metabolism , Receptors, Calcitriol/metabolism , Diabetes Mellitus , Glucose/metabolism , Glucose/physiology , Glycosylation , Hexosamines/metabolism , Homeostasis/drug effects , Humans , Hyperglycemia , Insulin/metabolism , Insulin Resistance , Macrophages/physiology , Monocytes/metabolism , N-Acetylglucosaminyltransferases/physiology , Protein Processing, Post-Translational , Receptors, Calcitriol/physiology , THP-1 Cells/metabolismABSTRACT
BACKGROUND: Concurrent diabetes mellitus and tuberculosis represent a significant health problem worldwide. Patients with diabetes mellitus have a high risk of tuberculosis, which may be mediated by an abnormal innate immune response due to hyperglycaemia or low vitamin D levels. METHODS: In the present study, we evaluated inactive vitamin D serum levels and the monocyte response to infection with M. tuberculosis, including phagocytosis of M. tuberculosis, antimycobacterial activity, LL-37, human ß defensin-2 and IL-10 gene expression and nitric oxide production, between type 2 diabetes mellitus patients (n = 51) and healthy volunteers (n = 38). RESULTS: Twenty-seven type 2 diabetes mellitus patients had inadequate inactive vitamin D levels (<50 nM). The percentages of M. tuberculosis phagocytosis between monocytes were similar across groups according to microscopy. Intracellular mycobacterial growth was similar in infected monocytes from both groups. However, M. tuberculosis growth was significantly higher in monocytes obtained from type 2 diabetes mellitus patients and lower vitamin D levels after 1-h (D0) and 72-h (D3) post-infection (p ≤ 0.05). LL-37, human ß defensin-2 and IL-10 mRNA expression were similar between monocytes across groups; vitamin D serum levels and LL-37, human ß defensin-2 and IL-10 expression were not correlated. Nitric oxide production was significantly higher in healthy volunteers than in type 2 diabetes mellitus patients with low vitamin D serum levels at D3 post-infection (p ≤ 0.05). CONCLUSIONS: Our results show that monocytes from type 2 diabetes mellitus patients and low vitamin D serum levels show an impaired ability to control the intracellular growth of M. tuberculosis, which is not associated with significant decrease of LL-37 or human ß defensin-2 expression. Vitamin D could be the link between diabetes and tuberculosis susceptibility.
Subject(s)
Diabetes Mellitus, Type 2/blood , Monocytes/microbiology , Mycobacterium tuberculosis/pathogenicity , Vitamin D Deficiency/microbiology , Vitamin D/blood , Adult , Antimicrobial Cationic Peptides/metabolism , Case-Control Studies , Female , Humans , Immunity, Innate , Interleukin-10/metabolism , Male , Middle Aged , Monocytes/immunology , Mycobacterium tuberculosis/growth & development , Nitric Oxide/metabolism , Phagocytosis , Tuberculosis/immunology , Tuberculosis/microbiology , beta-Defensins/metabolism , CathelicidinsABSTRACT
This study aimed to untangle the mixed effects of language brokering by examining a contextual factor (i.e., parent-child alienation) and a personal attribute (i.e., resilience) that may relate to adolescents' feelings during translating (i.e., sense of burden and efficacy) and that may moderate the association between such feelings and adolescent depressive symptoms. Participants included 557 adolescent language brokers (Mage = 12.96) in Mexican-American families. Results showed that adolescents with a strong sense of alienation from parents or low resilience (a) experienced more burden or less efficacy in translating and (b) were more susceptible to the detrimental effects of feeling a sense of burden and the beneficial effects of experiencing a sense of efficacy, as measured by depressive symptoms.
Subject(s)
Adolescent Behavior/ethnology , Depression/psychology , Mexican Americans/psychology , Parent-Child Relations , Resilience, Psychological , Social Alienation/psychology , Translating , Adolescent , Adult , Child , Female , Humans , Male , Self EfficacyABSTRACT
Melphalan (M), in combination with prednisone (MP), has been the backbone of new combinations, including bortezomib plus MP (VMP). However, new alkylator-free schemes, such as lenalidomide plus low-dose dexamethasone, are challenging the role of alkylators in myeloma treatment of elderly patients. Here we have updated, after a long follow-up (median 6 years), the results of the GEM2005 study that addressed this question by comparing VMP with bortezomib plus thalidomide and prednisone (VTP) as induction. Between April 2005 and October 2008, 260 patients were randomized to receive 6 cycles of VMP or VTP as induction. The median progression-free survival was 32 months for the VMP and 23 months for the VTP arms (P 5 .09). VMP significantly prolonged the overall survival (OS) compared with VTP (median of 63 and 43 months, respectively; hazard ratio [HR]: 0.67, P 5 .01). Achieving immunophenotypic complete response was associated with a significantly longer OS, especially in the VMP arm (66%remain alive after 8 years). Melphalan, plus bortezomib, should be maintained as standard care for the treatment of elderly multiple myeloma patients. This trial was registered at www.clinicaltrials.gov as #NCT00443235.