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Granulocyte-colony stimulating factor, granulocyte-macrophage colony stimulating factor, PIXY-321, stem cell factor, interleukin-3, and interleukin-7: receptor binding and effects on clonogenic proliferation in acute lymphoblastic leukemia.

Cytokines are frequently used after chemotherapy of leukemias and solid tumors to augment recovery of normal hematopoiesis. While the regulation of normal and leukemic myelopoiesis is well investigated, little is known about effects of cytokines on growth and differentiation of lymphoblastic leukemia. In this study, we investigated the expression of receptors for G-CSF, GM-CSF, SCF, IL-3, and IL-7 on acute lymphoblastic leukemia (ALL) blasts and the effects of these growth factors (GF) on ALL blast colony formation. The binding of fluorescence-tagged cytokines to receptors on ALL blasts was st

In vitro and in vivo effects of granulocyte colony-stimulating factor on neutrophils in glycogen storage disease type 1B: granulocyte colony-stimulating factor therapy corrects the neutropenia and the defects in respiratory burst activity and Ca2+ mobilization.

Children with glycogen storage disease (GSD) type 1b are susceptible to recurrent bacterial infections and have chronic neutropenia accompanied by phagocytic cell dysfunction including decreased superoxide anion (O2-) generation, calcium (Ca2+) mobilization, and chemotactic activity. Granulocyte colony-stimulating factor (G-CSF), a cytokine that corrects neutropenia in other diseases, in vitro enhances f-Met-Leu-Phe-triggered neutrophil O2- generation. Short-term pretreatment (15 min) of GSD 1b neutrophils with G-CSF increased the rate of O2- production (p < 0.01); however, this rate was still

Effect of the pineal gland on circadian rhythmicity of colony forming units for granulocytes and macrophages (CFU-GM) from rat bone marrow cell cultures.

The present study provides evidence that the pineal gland has a physiological role in the proliferation of colony forming units for granulocytes and macrophages (CFU-GM). A biphasic circadian rhythm of CFU-GM proliferation in rat bone marrow cell cultures (BMC) from intact animals peaking at 0600 and 1800 was observed. Pinealectomy (Px) at 1600 obliterated the circadian rhythm patterns of CFU-GM. Afternoon injections of melatonin (1630, 20 micrograms/per day for 10 days) to Px animals restored the rhythmicity. When pinealectomy was done at 0800, the morning peak remained unaltered and the colo…

Recombinant Human Granulocyte Colony-stimulating Factor for Reproductive Failure: A Systematic Review and Meta-analysis.

Reproductive failure including recurrent pregnancy loss (RPL) and recurrent implantation failure (RIF)-is often attributed to immune dysregulation at the maternal-fetal interface. Recombinant human granulocyte colony-stimu-lating factor (rhG-CSF) has been proposed as an immu-nomodulatory therapy to enhance reproductive outcomes. This systematic review and meta-analysis included 10 randomized controlled trials evaluating rhG-CSF in women diagnosed with RPL or RIF. The primary outcomes were clinical pregnancy rate (CPR), live birth rate (LBR), and miscarriage rate (MR). Overall, rhG-CSF did not

Human granulocytic anaplasmosis in Poland: clinical déjà vu or a new chapter in tick-borne diseases?

OBJECTIVES: Tick-borne diseases represent an increasing public health concern worldwide, including human granulocytic anaplasmosis (HGA). HGA is gaining relevance in travel medicine due to its expanding geographic distribution. Its true incidence remains unknown, largely due to underreporting and diagnostic challenges. HGA manifests itself by nonspecific symptoms and may be misdiagnosed as another tick-borne disease. This study aimed to direct focus on clinical manifestations of this disease and to examine the role of co-infection with other tick-borne pathogens on its clinical manifestations

The synergistic impact of granulocytic myeloid-derived suppressor cells and innate lymphoid cells in systemic sclerosis.

OBJECTIVE: Systemic sclerosis (SSc) is a chronic autoimmune disorder characterized by immune dysregulation and fibrosis, with myeloid-derived suppressor cells (MDSCs) emerging as important regulators of immune responses. However, the role of MDSCs in SSc-associated fibrosis and their interactions with other immune cell populations remain poorly understood. METHODS: Peripheral blood (SSc: N=37, healthy: N=27) and skin biopsies (SSc: N=9, healthy: N=5) were analyzed using flow cytometry and fluorescence microscopy, respectively. Bleomycin-induced mouse models of fibrosis were used to validate f

Crescentic transformation induced by granulocyte-colony stimulating factor administration-a case report and review of the literature.

The use of recombinant human granulocyte-colony stimulating factor (G-CSF) is an uncommon aetiology for acute kidney injury in cancer patients. Several patterns of renal injury due to G-CSF have been discussed in the literature. Here, we present a case of a 48-year-old man with monoclonal gammopathy of renal significance who received filgrastim for planned autologous stem cell transplantation and developed acute kidney injury presenting as crescentic glomerulonephritis. The patient was treated with steroids, plasmapheresis, and cyclophosphamide. He attained complete recovery and proceeded with

Гранулоциты и астроцитные маркеры отличают болезнь MOG-антител и оптику нейромиелита от множественных склерозов.

Гранулоциты играют хорошо зарекомендовавшую себя роль в патогенезе повреждения мозговой ткани при расстройстве спектра нейромиелита (NMOSD). Недавно было установлено, что маркеры активации гранулоцитов (GAM) в CSF отличают NMOSD от множественных склерозов (MS) с высокой точностью. Однако их патогенная роль в миэлине олигодендроците гликопротеиновой болезни, связанной с антителами (МОГАД), менее ясна, и их полезность для диагностической дифференциации неизвестна. Это исследование, проведенное восемью высшими центрами в Европе и Японии, включало в себя 244 пробы КФУ у пациентов с MOGAD (n = 71),

Совпадение в аннотации оригинала
Granulocytes play a well-established role in the pathogenesis of brain tissue damage in neuromyelitis optica spectrum disorder (NMOSD). The release of granulocyte activation markers (GAM) into CSF has recently been shown to distinguish NMOSD from multiple sclerosis (MS) with high accuracy. However, their pathogenetic role in myelin oligodendrocyte glycoprote…

Refractory Ulcerative Colitis Successfully Treated With a Combination of Granulocyte and Monocyte Apheresis and Mirikizumab: A Case Report.

We report the case of a 42-year-old man with treatment-refractory ulcerative colitis (UC), complicated by steroid dependence, adverse effects of immunomodulators, and significant social limitations, including inability to be hospitalized or take oral medications. Granulocyte and monocyte adsorptive apheresis (GMA) was initiated as an induction therapy, followed by the addition of mirikizumab, an anti-IL-23p19 monoclonal antibody. This sequential combination therapy resulted in significant clinical improvement and endoscopic mucosal healing. A detailed breakdown of the clinical course, objectiv

Evaluation of Neutrophil Activity Before and After Granulocyte and Monocyte Adsorptive Apheresis in Patients With Pustular Psoriasis.

INTRODUCTION: Activated neutrophils play a crucial role in the development of neutrophilic dermatoses, including pustular psoriasis. Adsorptive granulocyte and monocyte apheresis (GMA) is an effective treatment for skin disorders. Although previous basic research has demonstrated neutrophil activation, no efficient method exists to assess it in clinical settings. METHODS: We measured neutrophil activity in patients with GPP who underwent GMA therapy using the FLP-H4200, a newly developed neutrophil activity evaluation system. Blood samples were collected before the first and after the fifth G

Paraneoplastic Leukemoid Reaction in Lung Adenocarcinoma With Multi-lineage Granulocytic Abnormalities and Eosinophilic Pleural Effusion.

This report describes a rare and lethal phenotype of paraneoplastic leukemoid reaction (PLR) in lung adenocarcinoma, defined by a triad of multi-lineage myeloid proliferation, marked eosinophilic malignant pleural effusion, and progressive lymphopenia. The patient presented with a hyper-aggressive clinical course, culminating in a fatal outcome within 12 days, suggesting an underlying multi-cytokine storm. Clinically, this triad serves as a critical alert for distinguishing PLR from infection and underscores the importance of early bone marrow evaluation for rapid diagnosis. This case highligh

Granulocyte colony-stimulating factor for recurrent implantation failure: the results of a 5-years cohort study.

Despite the significant progress in the management of infertility, recurrent implantation failure (RIF) is yet a challenge for infertility physicians. It has a deep financial and psychological impact on RIF patients. Granulocyte-colony stimulating factor (G-CSF) has emerged as a chemical that can increase embryo implantation and clinical pregnancy rates in patients with RIF. This ambispective observational cohort study was carried out at the IVF unit of Cairo University Kasr Alainy Obstetrics and Gynaecology Hospital between October 2019 and September 2024. All RIF patients who underwent fresh

Safety and Efficacy of Intracameral Methotrexate and Targeted Radiotherapy for Subconjunctival Ocular Granulocytic Sarcoma: A Case Report.

A 28-year-old male patient with a history of acute myeloid leukemia, who was in complete remission for 18 months after allogeneic peripheral blood stem cell transplantation (PBSCT), developed a salmon-pink nodular lesion of the upper bulbar conjunctiva with conjunctival vascular engorgement of the right eye, accompanied by severe anterior uveitis and hypopyon. Ocular granulocytic sarcoma (OGS) was diagnosed based on immunohistochemistry analysis of the tissue sample and flow cytometry analysis of the aqueous humour, representing a local recurrence of acute myeloid leukemia. Systemic and centra

Polygenic overlap with granulocyte counts identifies novel loci for clozapine metabolism and clozapine-induced agranulocytosis.

While clozapine is the most effective antipsychotic drug, its use is limited due to hematological adverse effects involving the reduction of granulocyte counts with potential life-threatening agranulocytosis. It is not yet possible to predict or prevent the risk of agranulocytosis, and the mechanisms are unknown but likely related to clozapine metabolism. Genome-wide association studies (GWASs) of clozapine metabolism and clozapine-induced agranulocytosis have identified few genetic loci. We used the largest available GWAS summary statistics of clozapine metabolism (clozapine-to-norclozapine r

The value of immature granulocyte percentage united with D-Dimer in the evaluation of severe pancreatitis and its prognosis.

OBJECTIVE: The study aimed at analyzing the serum expression of Immature Granulocyte percentage (IG %) and D-Dimer (D-D) in patients with severe pancreatitis and exploring their clinical diagnostic value. METHODS: Eighty-four cases with severe pancreatitis received in Shengjing Hospital, China Medical University from July 2020 to July 2023 were regarded as the study group and conducted for retrospective analysis. They were divided into a survival group (n = 62) and a death group (n = 22) based on the prognosis. Another 80 patients diagnosed with mild and moderate pancreatitis were selected as

Evaluation of the Effect of Granulocyte Colony Stimulating Factor on Spinal Fusion in a Rat Model of Spinal Surgery.

AIM: To evaluate the effects of granulocyte colony stimulating factor (G-CSF) on spinal fusion through manual palpation, radiological examinations, and histopathological analyses in a rat model. MATERIAL AND METHODS: A total of 21 rats were evaluated in this study. The rats were divided into the following three groups, each consisting of seven rats: preoperative G-CSF, postoperative G-CSF, and a control group. L4-L5 posterolateral fusion was performed in all three groups. The preoperative G-CSF group received 5 μg/kg G-CSF subcutaneously for 5 days in the preoperative period, while the postop