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Correlation between cyclophosphamide-induced viral susceptibility and depletion of Junin virus-induced suppressor populations.

In contrast to lymphocytic choriomeningitis virus, another arenavirus, Junin virus (JV), the etiologic agent of Argentine hemorrhagic fever, when inoculated into suckling mice, induces lethal meningoencephalitis characterized by a delayed-type hypersensitivity (DTH)-like immune response. However, the adult BALB/c mouse is resistant to infection and no DTH reaction can be seen. This different viral sensitivity may be related to the development of an antigen non-specific DTH-suppressor cell pathway at work in the adult mouse. When the resistant mice are treated with cyclophosphamide (Cy) (50 mg/…

High-dose carboplatin, cyclophosphamide, and BCNU with autologous bone marrow support: excessive hepatic toxicity.

Intensive doses of carboplatin, cyclophosphamide, and BCNU with autologous bone marrow support were given to four patients with advanced melanoma. Three developed clinically diagnosed, severe veno-occlusive liver disease, which was fatal in two cases. The dose of carboplatin (450 mg/m2) was comparable with that used in ambulatory regimens. At the doses and schedule employed, this three-drug combination produced excessive hepatic toxicity. Caution is suggested when giving carboplatin in combination with intensive doses of other chemotherapeutic agents with known hepatotoxic potential.

Effect of cyclophosphamide pretreatment on defective delayed-type hypersensitivity in autoimmune-prone MRL mice.

Autoimmune MRL mice develop a poor delayed-type hypersensitivity (DTH) after BCG cell wall (BCG CW) immunization. To test the possible participation of suppressor cells on DTH induction, MRL/MpJ-lpr/lpr (MRL-lpr) and MRL/MpJ-+/+ (MRL-+/+) mice were pretreated with cyclophosphamide (Cy) 4 days before the immunization. The footpad reaction to the purified protein derivative of tuberculin (PPD) was enhanced remarkably by Cy pretreatment in both MRL-lpr and MRL-+/+ mice. In addition, the lymph node cells obtained from nonpretreated MRL-lpr and MRL-+/+ mice at 7 days after BCG CW immunization suppr…

Allogeneic and syngeneic marrow transplantation following high dose dimethylbusulfan, cyclophosphamide and total body irradiation.

Fifty-eight patients received an allogeneic or syngeneic marrow transplant following conditioning with high doses of dimethylbusulfan (DMB), cyclophosphamide (CY) and total body irradiation (TBI). Thirty-two patients had either chronic myeloid leukemia (CML) in accelerated phase or blast transformation, or acute leukemia after first relapse. The actuarial survival of these 32 patients at 3 years was 12% compared with 25% for a group of 206 patients with similar diagnoses prepared for transplantation with CY and TBI alone. This reduced survival was associated with a greater incidence of early n…

Treatment of high-risk gestational trophoblastic disease with methotrexate, actinomycin D, and cyclophosphamide chemotherapy.

Seventy-three patients with metastatic high-risk gestational trophoblastic disease were treated with methotrexate, actinomycin D, and cyclophosphamide chemotherapy at the Brewer Trophoblastic Disease Center between 1968 and 1982. Forty-six patients were treated primarily with methotrexate, actinomycin D, and cyclophosphamide because of the presence of one or more high-risk factors. Twenty-seven additional patients who had not responded to initial single-agent chemotherapy with methotrexate and/or actinomycin D were subsequently treated with methotrexate, actinomycin D, and cyclophosphamide. Ad…

Failure of cyclophosphamide to significantly enhance isolation of Rickettsia tsutsugamushi from wild Philippine rats.

Treatment of wild rats from a known scrub typhus focus in the Philippines with cyclophosphamide did not significantly enhance the isolation rate of Rickettsia tsutsugamushi using mouse inoculation techniques. Similarly, cyclophosphamide treatment of mice inoculated with organs of wild rats did not increase the recovery of rickettsiae, and isolation of rickettsiae was about equal from biopsies obtained before and after immunosuppression of wild rats.

Comparison of the Efficacy, Safety, and Quality of Life of Pegylated Liposomal Doxorubicin-Cyclophosphamide versus Epirubicin-Cyclophosphamide in Patients with Early-Stage HER2-Negative Breast Cancer: A Prospective, Randomized, Multicenter, Phase II Study.

INTRODUCTION: This multicenter, phase II randomized, non-inferiority study reports from the first prospective two-armed randomized control trial that compared the efficacy, safety, and quality of life (QoL) of pegylated liposomal doxorubicin (PLD)-based and epirubicin-based as adjuvant chemotherapy for stage I-II human epidermal growth factor receptor 2 (HER2)-negative breast cancer. METHODS: Patients with stage I/II HER2-negative breast cancer received PLD (37.5 mg/m2, Q3W, 5 cycles, LC arm) plus cyclophosphamide (600 mg/m2) or epirubicin (90 mg/m2, Q3W, 4 cycles, EC arm) plus cyclophosphami…

Intensification of adjuvant chemotherapy: 5-year results of a randomized trial comparing conventional doxorubicin and cyclophosphamide with high-dose mitoxantrone and cyclophosphamide with filgrastim in operable breast cancer with 10 or more involved axillary nodes.

PURPOSE: To determine whether intensifying the dose of adjuvant chemotherapy improves the outcome of women with primary breast cancer and 10 or more involved axillary nodes. PATIENTS AND METHODS: Patients (n = 150) were randomized to receive either four cycles of standard doxorubicin 60 mg/m(2) plus cyclophosphamide 600 mg/m(2) every 3 weeks (arm A) or four courses of intensified mitoxantrone 23 mg/m(2) plus cyclophosphamide 600 mg/m(2), with filgrastim 5 g/kg/d from days 2 to 15, every 3 weeks (arm B). Disease-free survival (DFS), distant disease-free survival (DDFS), and overall survival (O…

Реальный мировой опыт еженедельного карфилзомиба в сочетании с Cyclophosphamide и Dexametasone в Multieloma Relapped/refractory to Bortezomib and Lenalidomide.

Это ретроспективное исследование позволило оценить эффективность и безопасность еженедельного карфилзомиба, циклофосфамида и дексаметазона (KCd) для пациентов с рецидивной или рефрактной множественной миеломой (RRMM), которые ранее лечились как борцезомибными, так и линалидомидно-содержащими режимами. 33 пациентов с RRMM, которые получили режим KCd в период с марта 2020 и февраль 2024. Все пациенты до этого подвергались воздействию как бортезомида, так и линалидомида, и большинство из них (см.93.9%) были отвращены к линалидомиду. Один раз в неделю в Карфилзомиб вошёл в строй 70 мг/м2 (после ув

Совпадение в аннотации оригинала
PurposeThis retrospective study evaluated the efficacy and safety of a weekly carfilzomib, cyclophosphamide, and dexamethasone (KCd) regimen in patients with relapsed or refractory multiple myeloma (RRMM) who had been previously treated with both bortezomib- and lenalidomide-containing regimens.Materials and methodsWe conducted a retrospective analysis of 33…

Effects of quercetin-loaded nanoselenium on spermatogenesis in a mouse model of cyclophosphamide-induced testicular damage.

OBJECTIVE: Cyclophosphamide (CP), a chemotherapeutic agent, has been shown to inhibit spermatogenesis. Accordingly, the primary objective of this study was to evaluate the potential therapeutic benefits of quercetin‑loaded nanoselenium (quercetin‑loaded selenium nanoparticles [SeNPs]) in mice treated with CP. METHODS: Thirty‑five adult male mice were randomly assigned to five groups (n=7 per group): control, quercetin‑loaded SeNPs (20 mg/kg, daily for 5 weeks), CP (200 mg/kg, single dose), treatment A (CP+quercetin‑loaded SeNPs), and treatment B (CP+quercetin, 20 mg/kg daily for 5 weeks). Spe…

[The Application of Human Lung Organoids for Assessing the Cyclophosphamide-Induced Pulmonary Toxicity and Potential Mechanisms].

OBJECTIVE: To investigate Cyclophosphamide (CTX)-induced pulmonary toxicity using a human lung organoid model and explore its effects on DNA damage, inflammatory response, and early fibrosis. METHODS: Human lung organoids derived from induced pluripotent stem cells (iPSCs) were cultured in vitro, and the morphological features and gene/protein expression profiles at distinct induction stages were systematically identified. Mature organoids were treated with CTX at concentration gradients (0, 1, 5, 10, and 20 mmol/L),and morphological changes were observed at 24, 48, and 72 hours. The expressi…

Acute Toxic Impact of Cyclophosphamide on the Metabolic Organs of Siamese Fighting Fish (Betta splendens).

Currently, emerging pharmaceutical contaminants (EPCs) pose a significant risk to aquatic biodiversity on both a global and regional scale. Their accumulation in the environment presents several challenges to both human health and ecological integrity. Among EPCs, cyclophosphamide (COP), a widely used alkylating cytotoxic and immunosuppressive drug in human and veterinary oncology, has become one of the most frequently detected environmental contaminants. It has been reported to impair the immune system, induce oxidative stress, and exhibit genotoxic and cytotoxic effects in various fish speci…

The Effects of Tibetan Medicine Renqing Changjue Extracts on Cyclophosphamide-Induced Immunosuppression in a Mouse Model.

OBJECTIVES: Renqing Changjue (RQCJ) is a form of Tibetan medicine recognized for its immunomodulatory effects. However, the underlying mechanisms through which it exerts these effects remain to be elucidated. METHODS: We randomly divided 180 male Kunming mice into five groups: control, model (CTX), and high-, medium-, low-dose RQCJ (RQCJH, RQCJM, and RQCJL respectively). The mice received appropriate medications for 15 days. We measured body weight, thymus, spleen index, immune-related cytokines, T cells, and antibodies to evaluate the immunomodulatory effects. Finally, the impact of RQCJ on

Thymoquinone alleviates the adverse effects of cyclophosphamide on oogenesis and in vitro fertilization (IVF) in NMRI mice.

OBJECTIVE: Patients undergoing treatment with antineoplastic drugs face numerous challenges. This study investigates the effects of thymoquinone (Tq) in NMRI mice treated with cyclophosphamide (Cph), aiming to enhance patients' optimism for the future by redirecting their focus towards achieving a normal life and restoring fertility after treatment. MATERIALS AND METHODS: Female NMRI mice were divided into five groups: Control, Sham, Cph-treated (CPH), and two groups treated with Tq alongside Cph (TQ5 and TQ10). All mice were sacrificed to aspirate their oocytes for further analysis. The deve…

Modulatory effect of quercetin on premature ovarian insufficiency induced by cyclophosphamide via the PARP1 and GSK3β.

Premature ovarian insufficiency (POI) is a significant side effect of cyclophosphamide (CTX) chemotherapy in women, leading to early ovarian dysfunction. Quercetin (QR), a flavonoid with antioxidant and anti-apoptotic properties, has shown potential in mitigating ovarian damage. This study aimed to investigate the molecular pharmacological mechanisms underlying QR's protective effects against POI using network pharmacology, molecular docking, and in vivo experimental models. Network pharmacology and molecular docking were first employed to identify the core targets of QR in ameliorating POI. S…

Effectiveness of Cyclophosphamide and Immunosuppressants in Systemic Sclerosis-associated Interstitial Lung Disease: A Meta-analysis.

OBJECTIVE: The present meta-analysis compares the effectiveness of cyclophosphamide (CYC) as an immunosuppressant in systemic sclerosis-associated interstitial lung disease (SSc-ILD) with placebo, and other immunosuppressants. METHODOLOGY: The study involved randomized trials and observational studies identified through a systematic literature search using various databases, such as Elton B Stephens Company (EBSCO) Medline/PubMed, Scopus, Web of Science, Google Scholar, PubMed Central, Cochrane Library, and ScienceDirect. These studies compared the effectiveness of CYC with placebo or other i…

Investigation of the immunomodulatory effects and molecular mechanisms of cichoric acid on cyclophosphamide-induced immunosuppression in mice.

Immunosuppressive diseases (ISD) are relatively common in veterinary clinical practice. The lack of therapeutic drugs for ISD severely impacts the healthy breeding of livestock and poultry. Cichoric Acid (CA), a natural active ingredient derived from traditional medicinal plants, has demonstrated a notable immunoenhancing effect. Nevertheless, the underlying mechanisms by which CA attenuates cyclophosphamide (CTX)-mediated immunosuppressive effects in mice have not yet been fully elucidated. In vivo, CA demonstrated a significant increase in body weight of CTX-induced immunosuppressed mice, el…

Modulating Effects of Turmeric Polysaccharides on Immune Response and Gut Microbiota in Cyclophosphamide-Treated Mice.

Turmeric, a traditional medicinal herb, is commonly used as a dietary and functional ingredient. This study aimed to investigate the effect of turmeric polysaccharides (TPs) on intestinal immunity and gut microbiota in cyclophosphamide (Cy)-induced immunosuppressed BALB/c mice. We verified that the oral administration of TPs-0 and TPs-3 (200 and 400 mg/kg, bw) improved thymus and spleen indexes, increased the whole blood immune cells (WBC) and lymph count index, and stimulated the secretion of serum immunoglobulin IgG. More importantly, TPs-0 and TPs-3 could repair intestinal immune damage and…

Cyclophosphamide vs rituximab for eradicating inhibitors in acquired hemophilia A: A randomized trial in 108 patients.

BACKGROUND: Acquired hemophilia A (AHA) is a rare autoimmune disorder due to autoantibodies against Factor VIII, with a high mortality risk. Treatments aim to control bleeding and eradicate antibodies by immunosuppression. International recommendations rely on registers and international expert panels. METHODS: CREHA, an open-label randomized trial, compared the efficacy and safety of cyclophosphamide and rituximab in association with steroids in patients with newly diagnosed AHA. Participants were treated with 1 mg/kg prednisone daily and randomly assigned to receive either 1.5-2 mg/kg/day c…

The Ameliorative Effect of Betulinic Acid on Oxidative Stress in Mice of Cyclophosphamide-Induced Liver Damage.

As a conventional immunosuppressive drug, cyclophosphamide (CYP) exhibits strong hepatotoxicity in clinical applications. Betulinic acid (BA) is a natural triterpenoid that protects against liver damage. However, the underlying mechanism has not yet been elucidated. The purpose of this study was to evaluate the ameliorative effects of BA on CYP-induced hepatotoxicity and further clarify the underlying mechanism. BA pretreatment mitigated CYP-induced liver oxidative damage by alleviating histopathological lesions, reducing reactive oxygen species (ROS) accumulation, and restoring the mRNA expre…