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1.
J Gynecol Oncol ; 2024 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-39223945

RESUMO

In this multicenter retrospective cohort study of 99 patients who underwent salvage hysterectomy for residual disease in the uterine cervix following the completion of definitive radiotherapy for cervical cancer across 25 Japan Clinical Oncology Group-affiliated centers from 2005-2014, (i) time duration from the completion of definitive radiotherapy to the diagnosis of residual disease in the uterine cervix, (ii) salvage hysterectomy surgical margin status, and (iii) extent of residual disease, were independently associated with progression-free survival (PFS). Specifically, (i) time duration to identify residual disease of >62 days was associated with decreased PFS compared to ≤62 days (4-year rates 21.8% vs. 55.0%, adjusted-hazard ratio [aHR]=2.69, 95% confidence interval [CI]=1.55-4.67); (ii) presence of tumor in the surgical margin of hysterectomy specimen was associated with 4 times increased risk of disease progression compared to tumor-free surgical margin (4-year PFS rates 0% vs. 45.3%, aHR=4.27, 95% CI=2.20-8.29); and (iii) hazards of disease progression was 4.5-fold increased when the residual disease extended beyond the uterine cervix compared to residual disease within the uterine cervix only (4-year PFS rates 11.1% vs. 50.6%, aHR=4.54, 95% CI=2.60-7.95). In the absence of these 3 prognostic factors, 4-year PFS rate reached nearly 80% (78.6%, SAL-HYS criteria). In sum, these data suggested that early detection of persistent, residual disease following definitive radiotherapy for cervical cancer may be the key to improve survival if salvage hysterectomy is considered as a tailored treatment option. Ideal surgical candidate would be uterine cervix-contained disease and assurance of adequate tumor-free surgical margin.

2.
Biomaterials ; 313: 122773, 2024 Aug 24.
Artigo em Inglês | MEDLINE | ID: mdl-39217794

RESUMO

The development of artificial Antigen Presenting Cells (aAPCs) has led to improvements in adoptive T cell therapy (ACT), an immunotherapy, for cancer treatment. aAPCs help to streamline the consistent production and expansion of T cells, thus reducing the time and costs associated with ACT. However, several issues still exist with ACT, such as insufficient T cell potency, which diminishes the translational potential for ACT. While aAPCs have been used primarily to increase production efficiency of T cells for ACT, the intrinsic properties of a biomaterial-based aAPC may affect T cell phenotype and function. In CD8+ T cells, reactive oxygen species (ROS) and oxidative stress accumulation can activate Forkhead box protein O1 (FOXO1) to transcribe antioxidants which reduce ROS and improve memory formation. Alginate, a biocompatible and antioxidant rich biomaterial, is promising for incorporation into an aAPC formulation to modulate T cell phenotype. To investigate its utility, a novel alginate-based aAPC platform was developed that preferentially expanded CD8+ T cells with memory related features. Alginate-based aAPCs allowed for greater control of CD8+ T cell qualities, including, significantly improved in vivo persistence and augmented in vivo anti-tumor T cell responses.

3.
J Vasc Surg ; 2024 Aug 12.
Artigo em Inglês | MEDLINE | ID: mdl-39142450

RESUMO

OBJECTIVE: The aim of this prospective monocentric cohort study was to analyse the risk of otolaryngologist-assessed cranial nerve injuries (CNIs) following carotid endarterectomy (CEA) in our academic centre during a 15-year period, and to identify possible risk factors for CNI development. METHODS: From January 2007 to December 2022, 3749 consecutive CEAs were performed and their data prospectively recorded in a dedicated database. Cranial nerve injuries were assessed and defined according to a standardized protocol. Instrumental ear, nose and throat (ENT) evaluations were conducted within 30 days before intervention and before discharge. Preoperative neurological assessments were carried out in all patients with symptomatic carotid stenosis, while postoperative neurological evaluations were performed in all patients. Patients with newly onset cranial nerve injuries underwent follow-up assessments at 30 days and, if necessary, at 6, 12 and 24 months. Perioperative results, including mortality, major central neurological events, and postoperative CNIs, were analyzed. Regression or persistence of lesions during follow-up visits was assessed, and multivariate analysis (binary logistic regression) was conducted to evaluate clinical, anatomical, and surgical technique factors influencing the occurrence of CNIs. RESULTS: CEAs were performed more frequently in male patients (2453 interventions, 65.5%) than in females (1296 interventions, 34.5%). The interventions were performed in asymptomatic patients in 3078 cases (82%). In 66 cases the interventions followed a previous ipsilateral CEA. At preoperative ENT evaluation, no cases of ipsilateral pre-existent CNI were recorded. The 30-day stroke and death rate was 1%. In 113 patients (3%) a postoperative neck bleeding requiring surgical revision and drainage was noted. Pre-discharge ENT evaluations identified 259 motor cranial nerve injuries, accounting for 6.9% of the entire study group. Eighteen patients had lesions in more than one cranial nerve. ENT and neurological evaluations at 30 days showed the complete resolution of 161 lesions, whereas in 98 (2.6%) cases the CNI persisted. At one year, the rate of persistent CNI was 0.4% (10 patients), whereas at two years it was 0.25% (six cases), in all but one asymptomatic. At multivariate analysis, urgent intervention in unstable patients, secondary intervention, a clamping time >40 min., a hematoma requiring revision and a postoperative stroke were independent predictors of CNI. CONCLUSIONS: Data from this prospective monocentric cohort study showed that the occurrence of CNI following CEA was low, even when an independent multi-specialist evaluation was performed. The percentage of persistent lesions at two years was negligible and in most cases asymptomatic.

4.
Cureus ; 16(7): e65291, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-39184661

RESUMO

Chimeric antigen receptor T (CAR-T) cell therapy has transformed the field of immunology by redirecting T lymphocytes toward tumor antigens. Despite successes in attaining high remission rates as high as 90%, the performance of CAR therapy is limited by the survival of T cells. T cell persistence is crucial as it sustains immune response against malignancies, playing a critical role in cancer treatment outcomes. This review explores various approaches to improve CAR-T cell persistence, focusing on the choice between autologous and allogeneic cell sources, optimization of culture conditions for T cell subsets, metabolite adjustments to modify T cell metabolism, the use of oncolytic viruses (OVs), and advancements in CAR design. Autologous CAR-T cells generally exhibit longer persistence but are less accessible and cost-effective than their allogeneic counterparts. Optimizing culture conditions by promoting TSCM and TCM cell differentiation has also demonstrated increased persistence, as seen with the use of cytokine combinations like IL-7 and IL-15. Metabolic adjustments, such as using 2-deoxy-D-glucose (2-DG) and L-arginine, have enhanced the formation of memory T cells, leading to improved antitumor activity. OVs, when combined with CAR-T therapy, can amplify CAR-T cell penetration and persistence in solid tumors, although further clinical validation is needed. Advances in CAR design from second to fifth generations have progressively improved T cell activation and survival, with fifth-generation CARs demonstrating strong cytokine-mediated signaling and long-lasting persistence. Understanding the underlying mechanisms behind these strategies is essential for maximizing the potential of CAR-T therapy in treating cancer. Further research is needed to improve safety and efficacy and seamlessly integrate the discussed strategies into the manufacturing process.

5.
Exploration (Beijing) ; 4(4): 20230124, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-39175886

RESUMO

Inorganic persistent phosphors feature great potential for cancer diagnosis due to the long luminescence lifetime, low background scattering, and minimal autofluorescence. With the prominent advantages of near-infrared light, such as deep penetration, high resolution, low autofluorescence, and tissue absorption, persistent phosphors can be used for deep bioimaging. We focus on highlighting inorganic persistent phosphors, emphasizing the synthesis methods and applications in cancer diagnostics. Typical synthetic methods such as the high-temperature solid state, thermal decomposition, hydrothermal/solvothermal, and template methods are proposed to obtain small-size phosphors for biological organisms. The luminescence mechanisms of inorganic persistent phosphors with different excitation are discussed and effective matrixes including galliumate, germanium, aluminate, and fluoride are explored. Finally, the current directions where inorganic persistent phosphors can continue to be optimized and how to further overcome the challenges in cancer diagnosis are summarized.

6.
Int J Mol Sci ; 25(15)2024 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-39125874

RESUMO

Oncolytic viruses and morbilliviruses in particular, represent an interesting therapeutic approach for tumors with a poor prognosis and frequent resistance to conventional therapies. Canine histiocytic sarcomas (HS) exemplify such a neoplasm in need for new curative approaches. Previous investigations demonstrated a limited success of an acute intratumoral application of canine distemper virus (CDV) on xenotransplanted canine histiocytic sarcoma cells (DH82 cells), while persistently CDV-infected DH82 cell transplants exhibited a complete spontaneous regression. Therefore, the present study focuses on an intratumoral application of persistently CDV vaccine strain Onderstepoort-infected DH82 (DH82 Ond p.i.) cells into non-infected subcutaneous DH82 cell transplants in a murine model. DH82 cell transplants that received 10 applications, two days apart, showed a transient growth retardation as well as larger areas of intratumoral necrosis, lower mitotic rates, and a decreased intratumoral vascularization compared to controls. Viral mRNA was detected in all neoplasms following application of DH82 Ond p.i. cells until 66 days after the last injection. Furthermore, infectious virus was present until 62 days after the last injection. Although complete regression was not achieved, the present application regimen provides promising results as a basis for further treatments, particularly with genetically modified viruses, to enhance the observed effects.


Assuntos
Vírus da Cinomose Canina , Sarcoma Histiocítico , Terapia Viral Oncolítica , Animais , Vírus da Cinomose Canina/patogenicidade , Vírus da Cinomose Canina/genética , Cães , Sarcoma Histiocítico/virologia , Camundongos , Terapia Viral Oncolítica/métodos , Linhagem Celular Tumoral , Cinomose/virologia , Vírus Oncolíticos/genética , Vírus Oncolíticos/fisiologia
7.
Rheumatol Int ; 2024 Aug 13.
Artigo em Inglês | MEDLINE | ID: mdl-39136784

RESUMO

In recent years Janus kinase inhibitors (JAKi) have joined tumor necrosis factor inhibitors (TNFi) and interleukin (IL)-17 inhibitors (IL-17i) as approved disease modifying anti-rheumatic drugs (DMARD) for moderate to severe forms of axial spondyloarthritis (axSpA). Drug survival in axSpA patients has not been well studied in a real-world outpatient scenario since the approval of JAKi. We aimed to analyze the three drug classes based on modes of actions (MoA) for their persistence rates among German axSpA outpatients. A retrospective analysis of the RHADAR database for axSpA patients with a new initiation of TNFi, IL-17i, or JAKi treatment between January 2015 and October 2023 was conducted. Analyses included Kaplan-Meier curves and adjusted Cox regressions for drug discontinuation. 1222 new biological DMARD (TNFi [n = 954], IL-17i [n = 190]) or JAKi (n = 78) treatments were reported. The median drug survival was 31 months for TNFi, 25 for IL-17i, and 18 for JAKi. The corresponding 2-year drug survival rate was 79.6%, 72.6%, and 62.8% for TNFi, IL-17i, and JAKi, respectively. The probability for discontinuation for JAKi was significantly higher compared with TNFi (HR 1.91 [95% CI 1.22-2.99]) as well as for IL-17i compared with TNFi (HR 1.43 [95% CI 1.02-2.01]), possibly related to more frequent use of TNFis as first-line therapy. IL-17i and JAKi discontinuation probabilities were similar. Primary non-response was the reason for drug discontinuation in most cases across all MoA. TNFi treatment might persist longer than JAKi and IL-17i in German axSpA outpatients, possibly related to more severe or refractory disease in patients with JAKi-treated or IL-17i-treated axSpA.

8.
Adv Ther ; 2024 Aug 20.
Artigo em Inglês | MEDLINE | ID: mdl-39162983

RESUMO

INTRODUCTION: Fistula is a common complication of Crohn's disease (CD). Treatment with biologics has been associated with fistula healing. Long-term persistence is an important factor for a chronic inflammatory process such as fistula. This study described 24-month persistence and time-to-surgery endpoints among bio-naïve patients with CD and intestinal fistula who were initiated on ustekinumab. METHODS: Adults with CD and any enteric or perianal fistula initiated on ustekinumab (index date) between September 23, 2016, and March 2, 2022, were selected from the IQVIA PharMetrics® Plus database and followed up to 24 months. Persistence on ustekinumab (no gaps in days of supply of > 120 days) and composite endpoints of being persistent while on monotherapy and persistent while corticosteroid free were also assessed. The date of surgery was defined as the date of first claim for any CD-related surgeries. Persistence and time-to-surgery endpoints were assessed from the index date until the earliest of discontinuation (event), immunomodulator or other biologic use (event), corticosteroid use (event), date of surgery (event), 24-month follow-up or data end (censoring) using Kaplan-Meier analyses. RESULTS: The sample included 445 patients (mean age: 42.8 years; 56.6% female). The most common type of fistula was anal fistula (36.0%). At 24 months after ustekinumab initiation, 64.2% of patients remained persistent (95% confidence interval [CI] 55.8-71.4). Furthermore, 53.3% of patients were persistent while on monotherapy (95% CI 45.1-60.7), and 45.6% of patients were persistent while being corticosteroid free (95% CI 36.9-53.8). At 24 months, 22.8% (95% CI 17.0-30.3) of patients underwent any CD-related surgery. CONCLUSION: This study quantified long-term persistence on ustekinumab among bio-naïve patients with CD and fistula. Over half of patients initiated on ustekinumab were persistent and persistent while on monotherapy 24 months after initiation. Time-to-surgery estimate was comparable to existing evidence. These findings support ustekinumab as a treatment option for long-term management of CD with fistula.

9.
BMC Urol ; 24(1): 185, 2024 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-39210462

RESUMO

BACKGROUND: For localized prostate cancer, a comprehensive treatment approach centered around radical prostatectomy (RP) is often their optimal choice. Successful RP can typically reduce prostate-specific antigen (PSA) levels to below 0.1 ng/mL within 6 to 8 weeks postoperatively. However, in clinical practice, 5 to 24% of patients may have a PSA ≥ 0.1 ng/mL at 6 to 8 weeks after surgery, a phenomenon known as PSA persistence. Many studies based on data from Europe and United States have shown an association between PSA persistence and poor postoperative outcomes, further analyzing the risk factors for PSA persistence. However, relevant research based on data from China remains scarce. METHODS: Retrospective study of 1,347 prostate cancer patients who underwent RP at the First Affiliated Hospital of Zhejiang University School of Medicine from July 15, 2016, to August 31, 2022. Based on inclusion criteria, univariate and multivariate logistic regression analyses were conducted to explore the independent risk factors for persistent PSA. RESULTS: Among the 826 prostate cancer patients after RP, 124 patients experienced persistent PSA. In univariate logistic regression analysis, robot-assisted laparoscopic radical prostatectomy (RARP), preoperative PSA, high-risk group, preoperative International Society of Urological Pathology (ISUP) grades 2-5, postoperative ISUP grades 3-5, percentage of positive cores, cT3, ≥pT3b, extracapsular extension (EPE), seminal vesicle invasion (SVI), positive surgical margins (PSM) and Prostate Specific Antigen Density (PSAD) were all significantly associated with PSA persistence after RP (P < 0.05). In terms of surgical approach, RARP was considered a protective factor against postoperative PSA persistence (OR:0.53, p < 0.05). In multivariate logistic regression analysis, preoperative ISUP grade 4, percentage of positive cores and PSM were independent risk factors of PSA persistence after RP (P < 0.05). CONCLUSION: Preoperative PSA, high-risk group, preoperative ISUP grades 2-5, postoperative ISUP grades 3-5, percentage of positive cores, cT3, ≥pT3b, EPE, SVI, PSM and PSAD were independent risk factors for PSA persistence in prostate cancer patients after RP. This provides assistance for early monitoring and treatment of patients at high risk of persistent PSA in clinical practice.


Assuntos
Antígeno Prostático Específico , Prostatectomia , Neoplasias da Próstata , Prostatectomia/métodos , Masculino , Neoplasias da Próstata/cirurgia , Neoplasias da Próstata/sangue , Humanos , Antígeno Prostático Específico/sangue , Estudos Retrospectivos , Fatores de Risco , Pessoa de Meia-Idade , China/epidemiologia , Idoso , Hospitais com Alto Volume de Atendimentos
10.
Cancers (Basel) ; 16(16)2024 Aug 16.
Artigo em Inglês | MEDLINE | ID: mdl-39199630

RESUMO

CAR T cells require optimization to be effective in patients with solid tumors. There are many barriers affecting their ability to succeed. One barrier is persistence, as to achieve an optimal antitumor response, infused CAR T cells must engraft and persist. This singular variable is impacted by a multitude of factors-the CAR T cell design, lymphodepletion regimen used, expansion method to generate the T cell product, and more. Additionally, external agents can be utilized to augment CAR T cells, such as the addition of novel cytokines, pharmaceutical drugs that bolster memory formation, or other agents during either the ex vivo expansion process or after CAR T cell infusion to support them in the oppressive tumor microenvironment. This review highlights many strategies being used to optimize T cell persistence as well as future directions for improving the persistence of infused cells.

11.
Transl Oncol ; 49: 102069, 2024 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-39121829

RESUMO

A common feature of bacterial, fungal and cancer cell populations upon treatment is the presence of tolerant and persistent cells able to survive, and sometimes grow, even in the presence of usually inhibitory or lethal drug concentrations, driven by non-genetic differences among individual cells in a population. Here we review and compare data obtained on drug survival in bacteria, fungi and cancer cells to unravel common characteristics and cellular pathways, and to point their singularities. This comparative work also allows to cross-fertilize ideas across fields. We particularly focus on the role of gene expression variability in the emergence of cell-cell non-genetic heterogeneity because it represents a possible common basic molecular process at the origin of most persistence phenomena and could be monitored and tuned to help improve therapeutic interventions.

12.
Methods Mol Biol ; 2837: 185-198, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39044085

RESUMO

Covalently closed circular DNA (cccDNA) exists as a stable episomal minichromosome in the nucleus of hepatocytes and is responsible for hepatitis B virus (HBV) persistence. We recently reported a technique involving recombinant cccDNA (rcccDNA) of HBV by site-specific DNA recombination. A floxed monomeric HBV genome was engineered into a precursor plasmid (prcccDNA) which was excised via Cre/loxP-mediated DNA recombination to form a 3.3-kb rcccDNA bearing a loxP-chimeric intron. The foreign sequence was efficiently removed during RNA splicing, rendering a functionally seamless insertion. We characterized rcccDNA formation, effective viral transcription, and replication induced by rcccDNA both in vitro and in vivo. Furthermore, we closely simulated chronic hepatitis by using a replication-defective recombinant adenoviral vector to deliver rcccDNA to the transgenic mice expressing Cre recombinase, which led to prominent HBV persistence. Here, we describe a detailed protocol about how to construct and evaluate Cre/loxP-based recombinant HBV cccDNA system both in vitro and in vivo.


Assuntos
DNA Circular , DNA Viral , Vírus da Hepatite B , Integrases , Recombinação Genética , Replicação Viral , DNA Circular/genética , Vírus da Hepatite B/genética , Animais , Integrases/genética , Integrases/metabolismo , Camundongos , DNA Viral/genética , Humanos , Vetores Genéticos/genética , Camundongos Transgênicos , Plasmídeos/genética , DNA Recombinante/genética
13.
Rinsho Ketsueki ; 65(6): 597-602, 2024.
Artigo em Japonês | MEDLINE | ID: mdl-38960662

RESUMO

CAR-T cell therapy targeting CD19 and BCMA for relapsed or refractory hematopoietic tumors has been adopted in routine practice and has shown dramatic results. However, half of patients who achieve remission with CAR-T therapy eventually relapse, and thus efforts to improve the efficacy of CAR-T therapy are gaining momentum. Notably, studies have described innovative technologies that enable control of cell kinetics after infusion, which is not possible with conventional CAR-T therapies. In this article, we review the challenges of CAR-T cell therapy and the development of new technologies.


Assuntos
Imunoterapia Adotiva , Humanos , Imunoterapia Adotiva/métodos , Neoplasias Hematológicas/terapia , Antígenos CD19/imunologia , Resultado do Tratamento , Receptores de Antígenos Quiméricos
14.
Breast ; 77: 103765, 2024 Jul 04.
Artigo em Inglês | MEDLINE | ID: mdl-39002281

RESUMO

PURPOSE: Although younger age has been negatively associated with persistence to adjuvant endocrine therapy (ET), factors contributing to non-persistence remain poorly understood. We assessed factors associated with non-persistence to ET and described the 5-year trajectories of quality of life (QoL) and symptoms in young women (≤40 years) with hormone receptor-positive breast cancer (BC). METHODS: We retrieved data on clinical characteristics and non-persistence from the medical annual records in the European cohort of the "Helping Ourselves, Helping Others: The Young Women's BC Study" (IBCSG 43-09 HOHO). Women completed surveys at baseline, biannually for three years, and annually for another seven years. Data collection included sociodemographic information, QoL aspects assessed by the Cancer Rehabilitation Evaluation System-Short Form and symptoms assessed by the Breast Cancer Prevention Trial symptom scales. Cox regression models were applied to identify factors associated with non-persistence. RESULTS: The cumulative risk of interrupting ET within 5 years was 27.7 % (95 % CI, 21.5-35.2). The QoL subscale scores remained stable over 5 years, with slight improvements in the physical subscale. Hot flashes decreased (p < 0.001), while vaginal problems intensified (p < 0.001) over time. Being married without children and having difficulties interacting and communicating with the medical team were significantly associated with non-persistence. CONCLUSIONS: Discussing the desire to conceive with partnered childless women and establishing a good relationship with the medical team may be important in addressing the non-persistence in young BC survivors. As recent data suggests the safety of pausing ET to conceive, this approach may be a reasonable future option to limit non-persistence.

15.
Chemosphere ; 363: 142827, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39019179

RESUMO

A class of chemical with a potentially important perceived future contribution to the net zero carbon goal (as "green" solvents) is the methylimidazolium ionic liquids (MILs). These solvents are used in industrial processes such as biofuel production yet little is known about their environmental stability or toxicity in man although one MIL - 1-octyl-3-methylimidazolium (M8OI) - has been shown to activate the human estrogen receptor alpha (ERα). The stabilities of the chloride unsubstituted methylimidazolium (MI) and MILs possessing increasing alkyl chain lengths (2C, 1-ethyl-3-methylimidazolium (EMI); 4C, 1-butyl-3-methylimidazolium (BMI); 6C; 1-hexyl-3-methylimidazolium (HMI), 8C, M8OI; 10C, 1-decyl-3-methylimidazolium (DMI)) were examined in river water and a human liver model system. The MILs were also screened for their abilities to activate the human ERα in vitro and induce uterine growth in pre-pubertal rats in vivo. Short chain MILs (EMI, BMI and HMI) underwent negligible metabolism and mineralisation in river water; were not metabolised in a model of human liver metabolism; activated the human ERα in vitro and were estrogenic in vivo in rats. A structure-based computational approach predicted short chain MIL binding to both the estrogen binding site and an additional site on the human estrogen receptor alpha. Longer chain MILs (M8OI and DMI) were metabolised in river water and partially mineralised. Based on structure-activity considerations, some of these environmentally-derived metabolites may however, remain a hazard to the population. MILs therefore have the potential to become forever chemicals with adverse effects to both man, other animals and the environment in general.


Assuntos
Disruptores Endócrinos , Receptor alfa de Estrogênio , Imidazóis , Líquidos Iônicos , Líquidos Iônicos/toxicidade , Líquidos Iônicos/química , Imidazóis/toxicidade , Imidazóis/química , Disruptores Endócrinos/toxicidade , Disruptores Endócrinos/química , Humanos , Receptor alfa de Estrogênio/metabolismo , Animais , Ratos , Feminino
16.
Cancers (Basel) ; 16(14)2024 Jul 22.
Artigo em Inglês | MEDLINE | ID: mdl-39061247

RESUMO

Chimeric antigen receptor-T cells have spearheaded the field of adoptive cell therapy and have shown remarkable results in treating hematological neoplasia. Because of the different biology of solid tumors compared to hematological tumors, response rates of CAR-T cells could not be transferred to solid entities yet. CAR engineering has added co-stimulatory domains, transgenic cytokines and switch receptors to improve performance and persistence in a hostile tumor microenvironment, but because of the inherent cell type limitations of CAR-T cells, including HLA incompatibility, toxicities (cytokine release syndrome, neurotoxicity) and high costs due to the logistically challenging preparation process for autologous cells, the use of alternative immune cells is gaining traction. NK cells and γδ T cells that do not need HLA compatibility or macrophages and dendritic cells with additional properties such as phagocytosis or antigen presentation are increasingly seen as cellular vehicles with potential for application. As these cells possess distinct properties, clinicians and researchers need a thorough understanding of their peculiarities and commonalities. This review will compare these different cell types and their specific modes of action seen upon CAR activation.

17.
J Reprod Immunol ; 165: 104289, 2024 Jun 29.
Artigo em Inglês | MEDLINE | ID: mdl-38972147

RESUMO

One of the initial causes of cystic ovarian disease (COD) is a failure in the normal ovulation mechanism. This study aimed to characterize the populations of immune cells (T-lymphocytes, B-lymphocytes, monocytes-macrophages and granulocytes) present in the ovary of cows with COD and induced follicular persistence, and evaluate their relation with follicular persistence and cyst formation. The follicular persistence model was developed using a progesterone (P4) slow-release intravaginal device, to obtain subluteal concentrations of P4. Results evidenced that T-lymphocytes, B-lymphocytes and monocytes-macrophages in the cortex, medulla, and theca externa and interna of dominant follicles were higher in the control group than in the COD and all persistence groups. Granulocytes in the medulla and theca externa of dominant follicles were lower in the control group than in the COD group, and those in the cortex and medulla were lower in the control group than in the persistence groups. The presence of T-lymphocytes, B-lymphocytes and granulocytes in the follicular fluid was abundant, especially that of granulocytes, without differences between control and COD cows. These results suggest that the immune system potentially plays a role in the local mechanisms of COD pathogenesis in dairy cows. In spontaneous COD and in our follicular persistence model, the distribution of the cells studied was different from that in the control group. However, to our knowledge, this is the first report describing the presence of immune cells in bovine follicular fluid samples and the expression of steroid hormone receptors in infiltrating immune cells in the bovine ovary.

18.
Addict Behav ; 158: 108106, 2024 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-39032200

RESUMO

INTRODUCTION: Prospective associations of adolescent cannabis use with nicotine use persistence are not well characterized but are important for informing prevention and policy. This study examined the association of 4 types of cannabis product use with subsequent persistent nicotine product use among adolescents. METHODS: We used prospective data from an adolescent cohort (14-17 years) from Southern California surveyed at baseline and at approximately 6-month follow-up (2022-2023). We incorporated three mutually non-exclusive analytic samples comprised of individuals with baseline past 6-month use of: (1) any nicotine product (N=308 [mean[SD] age = 16.3[0.6] years]), (2) e-cigarettes (n = 276), and (3) any combustible tobacco product (n = 137). Baseline past 6-month cannabis smoking, vaping, edible use, cannabidiol [CBD] or hemp product use, and any cannabis product use (yes/no) were separately modeled as predictors of past 6-month persistent use of any nicotine products, e-cigarettes, and combustible tobacco at follow-up. RESULTS: Baseline use of any cannabis product was associated with increased odds of persistent use of e-cigarettes or any nicotine product (adjusted odds ratio[OR] range: 1.96-2.66). Cannabis smoking was positively associated with persistent any nicotine product use (adjusted OR=2.19, 95 % CI=1.20-4.02). Cannabis smoking, vaping, and edible use predicted persistent use of e-cigarettes (adjusted OR range: 2.22-2.79). Cannabis product use did not predict combustible tobacco use persistence. Associations of CBD/hemp product use with nicotine use persistence outcomes were all non-significant. CONCLUSIONS: Adolescents who use cannabis may be at elevated risk for persistent nicotine use.


Assuntos
Sistemas Eletrônicos de Liberação de Nicotina , Vaping , Humanos , Adolescente , Masculino , Feminino , Vaping/epidemiologia , Estudos Prospectivos , California/epidemiologia , Sistemas Eletrônicos de Liberação de Nicotina/estatística & dados numéricos , Fumar Maconha/epidemiologia , Uso de Tabaco/epidemiologia , Produtos do Tabaco/estatística & dados numéricos , Uso da Maconha/epidemiologia , Comportamento do Adolescente , Canabidiol
19.
J Clin Med ; 13(12)2024 Jun 19.
Artigo em Inglês | MEDLINE | ID: mdl-38930126

RESUMO

Background: Human papilloma virus (HPV) infection and the management of its persistence is still a great medical challenge. Recently, scientific evidence has supported the potential therapeutic effects of four combined natural molecules-epigallocatechin gallate (EGCG), folic acid, vitamin B12 and hyaluronic acid (HA)-in counteracting HPV DNA positivity and related cytological lesions. Methods: Each patient of these five clinical cases had persistent HPV positivity in the anogenital site and assumed a dietary supplement based on a combination of 200 mg of EGCG, 50 mg of HA, 1 mg of vitamin B12 and 400 mcg of folic acid (Pervistop®, Farmares s.r.l., Rome, Italy) at a dosage of 1 or 2 caps/day for 6 or 3 months, respectively, depending on clinical history. Results: After treatment, all the patients reported a negative HPV DNA test and improved cytological lesions, thus demonstrating the ability of these combined molecules to counteract both anal and cervical HPV infection and related manifestations. Conclusions: Overall, these data corroborate previous evidence about the effectiveness of such natural molecules in the management of HPV infection and its persistence. Naturally, further studies with a larger population and long-term follow-up will contribute to reinforce the positive effects of this dietary supplement in counteracting HPV infection.

20.
Front Immunol ; 15: 1395968, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38846940

RESUMO

Objective: Treatment options with disease-modifying antirheumatic drugs (DMARDs) for psoriatic arthritis (PsA) have evolved over recent years. In addition to Janus kinase inhibitors (JAKi), four classes of biologic DMARDs (bDMARDs; interleukin [IL]-23 inhibitors [IL-23i], IL-12/23 inhibitors [IL-12/23i], tumor necrosis factor inhibitors [TNFi], and IL-17 inhibitors [IL-17i]) are currently approved for moderate to severe PsA treatment. There is minimal evidence of the persistence of these drugs among PsA outpatients in a real-world scenario during the period following the approval of JAKi. Therefore, we aimed to analyze the drug survival rates of biologic and JAKi therapies among German PsA outpatients during routine clinical care. Methods: We retrospectively analyzed PsA patients with a new prescription for a biologic or JAKi in the RHADAR database between January 2015 and October 2023. Kaplan-Meier Curves and Cox regression modelling were used to compare drug survival rates. Results: 1352 new prescriptions with bDMARDs (IL-12/23i [n=50], IL-23i [n=31], TNFi [n=774], IL-17i [n=360]) or JAKi (n=137) were identified. The 5-year drug survival rate was 67.8% for IL-17i, 62.3% for TNFi, 53.3% for JAKi, and 46.0% for IL-12/23i. Discontinuation probabilities for JAKi and IL-12/23i were significantly higher compared with TNFi (JAKi hazard ratio [HR] 1.66, [95% CI 1.23-2.24], p=0.001; IL-12/23i HR 1.54, [95% CI 1.02-2.33], p=0.042) and IL-17i (JAKi HR 1.77, [95% CI 1.27-2.47], p=0.001; IL-12/23i HR 1.64, [95% CI 1.06-2.55], p=0.027). JAKi-treated patients had more severe disease and more osteoarthritis (OA) compared to TNFi and more OA compared to IL-17i. Conclusion: German PsA outpatients might persist longer with TNFi and IL-17i compared with IL-12/23i or JAKi. For TNFi, differences in subgroup characteristics and comorbidities (OA) may have affected drug survival rates. For IL-17i, the longer drug survival might not only be related to less OA compared to JAKi and, therefore, might be affected by other factors.


Assuntos
Antirreumáticos , Artrite Psoriásica , Interleucina-12 , Interleucina-17 , Interleucina-23 , Inibidores de Janus Quinases , Humanos , Artrite Psoriásica/tratamento farmacológico , Artrite Psoriásica/mortalidade , Masculino , Feminino , Estudos Retrospectivos , Pessoa de Meia-Idade , Interleucina-17/antagonistas & inibidores , Alemanha , Interleucina-12/antagonistas & inibidores , Interleucina-23/antagonistas & inibidores , Inibidores de Janus Quinases/uso terapêutico , Antirreumáticos/uso terapêutico , Adulto , Inibidores do Fator de Necrose Tumoral/uso terapêutico , Idoso , Bases de Dados Factuais , Pacientes Ambulatoriais , Resultado do Tratamento
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