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Перевозка и сдерживание движения sphingosine-1-phosphate Экспортеры SPNS2.

Sphingosine-1-phosphate (S1P) — сигнал лизолипида, имеющий решающее значение для развития сердца, иммунитета и слуха. Соответственно, мутации в переносчике S1P SPNS2 связаны с уменьшением числа белых клеток и нарушениями слуха. СПНС2 также экспортирует S1P-mimicking FTY720-P (Финголимод) и, таким образом, является центральным элементом фармакокинетики этого препарата при лечении множественного склероза. Здесь мы используем комбинацию крио-электронной микроскопии, иммунофлюоресценции, связывания in vitro и в vivo S1P-оценки экспорта, а также молекулярное моделирование динамики для исследования

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… Media was collected from CHO cells overexpressing sphingosine kinase 1 (SphK1) and SPNS2, or its mutants, after incubation with 1 μM sphingosine. … Exported sphingosine-1-phosphate in the media was then quantified by the luminescence of reporter CHO cells expressing S1PR3 and mitochondrially-targeted obelin. …

Feasibility and Effectiveness of Assessing Subhealth Using a Mobile Health Management App (MibyeongBogam) in Early Middle-Aged Koreans: Randomized Controlled Trial.

BackgroundMobile health (mHealth) is a major source of health management systems. Moreover, the demand for mHealth, which is in need of change due to the COVID-19 pandemic, is increasing worldwide. Accordingly, interest in health care in everyday life and the importance of mHealth are growing.ObjectiveWe developed the MibyeongBogam (MBBG) app that evaluates the user's subhealth status via a smartphone and provides a health management method based on that user's subhealth status for use in everyday life. Subhealth is defined as a state in which the capacity to recover to a healthy state is dimi

Evaluation of Local and Systemic Melatonin Administration on Bone Healing After Tooth Extraction in Bisphosphonate-Treated Rats.

BACKGROUND: The purpose of our study was to investigate the effects of systemic and local application of melatonin after tooth extraction in bisphosphonate applied rats, on the healing of extraction socket histopathologically and immunohistochemically. METHODS: Forty four Wistar albino rats were included in the study. Subjects were divided into 4 groups: Control (C), Bisphosphonate (BIF), Bisphosphonate + Local Melatonin (BIF + LM) and Bisphosphonate + Systemic Melatonin (BIF + SM). Zoledronic acid was applied intraperitoneally once a week from the beginning of the experiment to all the groups

Bispecific antibodies in clinical practice: Understanding recent advances and current place in cancer treatment landscape.

Immunotherapy has changed the treatment landscape of cancer in the past decade. Amongst various forms of immunotherapy, manipulating the T cell has shown promise in past few years. T cell manipulation can be done by CAR-T cell therapy or bispecific antibodies. These 2 therapeutic modalities have been studied and shown efficacy in hematologic malignancies in relapsed refractory setting. They have not been compared to each other in randomized control trials; hence, the adequate sequencing is not known. Although cross-trial comparison is not ideal, available evidence indicates toward similar effi

Exosomes and organ-specific metastasis.

The transmission of information between tumor cells and other cell types in the tumor microenvironment plays an important role in tumor metastasis and is critically modulated by exosomes and other mediators. Tumor-derived exosomes can promote epithelial-mesenchymal transition, angiogenesis, immune escape, formation of the pre-metastatic microenvironment, and transmission of drug-resistant molecules, thereby promoting tumor growth, invasion, and metastasis. Integrins are important regulatory molecules on exosomes that can locate metastatic cells at the initial stage of metastasis and show good

Three cases of systemic amyloidosis successfully diagnosed by subcutaneous fat tissue biopsy of the hip.

Fine-needle aspiration biopsy of the abdominal fat pad is considered to be a minimally invasive procedure for diagnosing systemic amyloidosis. However, this procedure is sometimes difficult and can be dangerous for elderly patients whose abdominal fat layer is thin because of malnutrition. In such cases, alternative diagnostic methods are required. We report three elderly patients with heart failure complicated by malnutrition. In all cases, electrocardiogram showed low voltage in the limb leads and a pseudoinfarct pattern in the chest leads, and echocardiography showed left ventricular wall t

PRMT5: An Emerging Target for Pancreatic Adenocarcinoma.

The overall survival of pancreatic ductal adenocarcinoma (PDAC) remains poor and its incidence is rising. Targetable mutations in PDAC are rare, thus novel therapeutic approaches are needed. Protein arginine methyltransferase 5 (PRMT5) overexpression is associated with worse survival and inhibition of PRMT5 results in decreased cancer growth across multiple cancers, including PDAC. Emerging evidence also suggests that altered RNA processing is a driver in PDAC tumorigenesis and creates a partial dependency on this process. PRMT5 inhibition induces altered splicing and this vulnerability can be

Induction of Pro-Apoptotic Endoplasmic Reticulum Stress in Multiple Myeloma Cells by NEO214, Perillyl Alcohol Conjugated to Rolipram.

Despite the introduction of new therapies for multiple myeloma (MM), many patients are still dying from this disease and novel treatments are urgently needed. We have designed a novel hybrid molecule, called NEO214, that was generated by covalent conjugation of the natural monoterpene perillyl alcohol (POH), an inducer of endoplasmic reticulum (ER) stress, to rolipram (Rp), an inhibitor of phosphodiesterase-4 (PDE4). Its potential anticancer effects were investigated in a panel of MM cell lines. We found that NEO214 effectively killed MM cells in vitro with a potency that was over an order of

Update on current diagnosis and management of anaplastic thyroid carcinoma.

Well-differentiated thyroid carcinoma has a favorable prognosis with a 5-year survival rate of over 95%. However, the undifferentiated or anaplastic type accounting for < 0.2%, usually in elderly individuals, exhibits a dismal prognosis with rapid growth and disappointing outcomes. It is the most aggressive form of thyroid carcinoma, with a median survival of 5 mo and poor quality of life (airway obstruction, dysphagia, hoarseness, persistent pain). Early diagnosis and staging are crucial. Diagnostic tools include biopsy (fine needle aspiration, core needle, open surgery), high-resolution ultr

Inflammaging, an Imbalanced Immune Response That Needs to Be Restored for Cancer Prevention and Treatment in the Elderly.

Nowadays, new advances in society and health have brought an increased life expectancy. However, at the same time, aging comes with complications that impact the development of autoimmunity, neurodegenerative diseases and cancer. These complications affect the quality of life and impact the public health system. Specifically, with aging, a low-grade chronic sterile systemic inflammation with self-reactivity in the absence of acute infection occurs termed inflammaging. Inflammaging is related to an imbalanced immune response that can be either naturally acquired with aging or accelerated due to

The Simplified Comorbidity Index: a new tool for prediction of nonrelapse mortality in allo-HCT.

Individual comorbidities have distinct contributions to nonrelapse mortality (NRM) following allogeneic hematopoietic cell transplantation (allo-HCT). We studied the impact of comorbidities individually and in combination in a single-center cohort of 573 adult patients who underwent CD34-selected allo-HCT following myeloablative conditioning. Pulmonary disease, moderate to severe hepatic comorbidity, cardiac disease of any type, and renal dysfunction were associated with increased NRM in multivariable Cox regression models. A Simplified Comorbidity Index (SCI) composed of the 4 comorbidities p

Риск заражения иммунной контрольной точкой: систематический обзор и метаанализ.

СПРАВОЧНАЯ ИНФОРМАЦИЯ: Относительный риск (RR) инфекции для пациентов, прошедших курс лечения с ингибиторами для иммунных контрольно-пропускных пунктов (ИПК), неизвестен. ЦЕЛИ: В этом исследовании была проведена оценка риска инфицирования пациентов с твердыми опухолями, проходящих курс лечения в рамках ИКИ, на основе систематического обзора и метаанализа. ПАТИЕНТЫ И МЕТОДЫ: Были проведены обыски баз данных библиотеки Кокрана, ЭМБАСЕ и Пубмеда 1 декабрь 2020. Включены случайные испытания, сравнивающие любой ICI в одиночку с химиотерапией (CT) или с другими агентами против плацебо, КТ или других

Влияние изменений, флуктуации или изменчивости веса на риск неалкогольной толстой болезни печени в общей численности населения: систематический обзор и мета-анализ.

В настоящее время проводятся фоновые и целенаправленные исследования воздействия изменений веса на неалкогольное заболевание жировой печени; поэтому цель этого систематического обзора заключается в критическом обсуждении воздействия изменений, колебаний или колебаний веса на риск заболевания неалкогольной жировой печени у населения в целом. three базы данных, PubMed/Medline, Google Scientist и Scopus, которые были доступны до июня 2024, были использованы для составления материалов для наших исследований. Для этого исследования были представлены только публикации на английском языке, и их оценк

Характеристики пожилых корейских пациентов в возрасте нескольких миэлома 80 годами или более.

Множественная миелома (ММ) затрагивает главным образом пожилых людей, однако исследования, касающиеся пожилых пациентов с ММ, ограничены. Клинические характеристики и результаты выживаемости пациентов с возрастом MM 80 В ходе ретроспективного анализа были проанализированы годы или более. МЕТОДЫ: Это ретроспективное многоцентральное исследование было проведено для изучения клинических характеристик, методов лечения и результатов выживаемости пациентов пожилого возраста. 80 и старше, которым был поставлен новый диагноз five - академические больницы в Тэгу, Корея, между 2010 и 2019.РЕЗУЛЬТАТЫ: Вс

The Role of Angiogenesis in Haemophilic Arthropathy: Where Do We Stand and Where Are We Going?

Haemophilia is an inherited bleeding disorder that can lead to degenerative joint arthropathy due to recurrent bleeding episodes affecting the musculoskeletal system of the patient. The cause of bleeding can be either traumatic or spontaneous. The pathogenesis of haemophilic arthropathy is unclear as many factors like iron, inflammatory cytokines, and angiogenic factors contribute to this process. Blood into joints can deteriorate the bone to such an extent that the patient experiences pain, reduction of the range of movement, and deformity of the joint, conditions that could have a great impa

Therapy-related myeloid neoplasms in 39 Korean patients: a single institution experience.

BackgroundTherapy-related myeloid neoplasms (t-MN) occur as late complications of cytotoxic therapy. This study reviewed clinical and cytogenetic characteristics of patients with t-MN at a single institution in Korea.MethodsThe study subjects included 39 consecutive patients diagnosed with t-MN. Each subject's clinical history of previous diseases, treatments, and laboratory data was reviewed, including cytogenetics. The primary diagnosis was hematologic malignancy in 14 patients and solid tumor in 25 patients.ResultsTherapy-related acute myeloid leukemia (t-AML, 66.7%) was found to be more co

Monomorphic T-cell post-transplant lymphoproliferative disorder with features of HHV8-negative primary effusion lymphoma: an autopsy case and review of the literature.

A 67-year-old man underwent renal transplantation in his twenties. He developed refractory pleural effusion, with many large lymphocytes with severe atypia and mitosis in the effusion, indicating malignant lymphoma. He finally died of respiratory failure. An autopsy revealed atypical lymphocytes positive for CD3, CD4, and CD30 and negative for CD8, CD20, PAX5, human herpesvirus (HHV) 8, and Epstein-Barr virus-encoded small RNAs by immunohistochemistry and in situ hybridization. Atypical lymphocytes also had T-cell receptor gene rearrangements Jβ2, Jγ2, and Jδ1 and chromosomal aberrations der(8

ENPP1/CD203a-targeting heavy-chain antibody reveals cell-specific expression on human immune cells.

ENPP1/CD203a is a membrane-bound ectonucleotidase capable of hydrolyzing ATP, cGAMP and other substrates. Its enzymatic activity plays an important role in the balance of extracellular adenine nucleotides and the modulation of purinergic signaling, in soft tissue calcification, and in the regulation of the cGAS/STING pathway. However, a detailed analysis of ENPP1 surface expression on human immune cells has not been performed. Here, we selected VHH domains from human ENPP1-immunized alpacas to generate heavy-chain antibodies targeting ENPP1, and analyzed cell surface expression on all circulat

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… Transfection of cell lines HEK293 and CHO cells were transiently transfected with plasmids encoding human ENPP1 (pCDNA3.1 vector), ENPP4 (pCMV6 vector) and ENPP5 (peGFP.N1 vector). … The library was cloned into pCSE2.5 vector including rabbit Ig CH2 and CH3 domains to express hcAbs. 4 × 96 clones were expressed in HEK293-6E cells and supernatants were screened by immunofluorescence microscopy on ENPP1 -transfected CHO cells. …

Targeting pancreatic cancer immune evasion by inhibiting histone deacetylases.

The immune system plays a vital role in maintaining the delicate balance between immune recognition and tumor development. Regardless, it is not uncommon that cancerous cells can intelligently acquire abilities to bypass the antitumor immune responses, thus allowing continuous tumor growth and development. Immune evasion has emerged as a significant factor contributing to the progression and immune resistance of pancreatic cancer. Compared with other cancers, pancreatic cancer has a tumor microenvironment that can resist most treatment modalities, including emerging immunotherapy. Sadly, the u

CKD-5, a novel pan-histone deacetylase inhibitor, synergistically enhances the efficacy of sorafenib for hepatocellular carcinoma.

BackgroundHistone deacetylase inhibitors (HDACIs) have distinctive epigenetic targets involved in hepatocarcinogenesis and chemoresistance. A recent phase I/II study reported the possibility of HDACI as a chemosensitizer in sorafenib-resistant patients. In this study, we evaluated whether CKD-5, a novel pan-HDACI, can potentiate the efficacy of sorafenib.MethodsThe anticancer effect of CKD-5 with and without sorafenib was evaluated in vitro using an MTS assay with human HCC cells (SNU-3058 and SNU-761) under both normoxic and hypoxic conditions. Microarray analysis was performed to investigate