Abstract:
:In iron overload disorders a significant fraction of the total iron circulates in the plasma as low molecular weight complexes not bound to transferrin, known as non-transferrin-bound iron (NTBI). By catalyzing the formation of free radicals, NTBI accumulation results in oxidative stress and cellular damage, being a major cause of organ toxicity. NTBI is rapidly and preferentially cleared from circulation by the liver and the myocardium, the main disease targets in iron overload conditions. We have recently demonstrated that human peripheral blood T lymphocytes take up NTBI in vitro, with a pattern that resembles that of hepatocytes. Since T lymphocytes constitute a numerically important component of the circulating cell pool, these findings support a putative role for this cell type in the systemic protection against iron toxicity. Here we tested the hypothesis that the circulating peripheral blood T lymphocyte pool constitutes an important storage compartment for NTBI and is thus a modifier of NTBI deposition in target organs. First we show that NTBI uptake by human T lymphocytes increases the expression of the iron-storage protein ferritin and of the iron exporter ferroportin via an IRE-dependent mechanism. NTBI retention by T lymphocytes is shown to be critically controlled by the hepcidin-mediated modulation of ferroportin both in vitro and in vivo. Finally, the protective effect of T lymphocytes was tested by analyzing the patterns of iron accumulation in the T lymphocyte-deficient mouse model Foxn1(nu) before and after reconstitution with T lymphocytes by adoptive transfer. The results confirmed a significant increase of liver and pancreas iron accumulation in T lymphocyte-deficient mice. NTBI accumulation in the liver and spleen was prevented by reconstitution with syngeneic T lymphocytes. Altogether, our results demonstrate that T lymphocytes are important components of a circulating "NTBI storage compartment" and show its physiological relevance as a modifier of tissue iron overload.
journal_name
Front Pharmacoljournal_title
Frontiers in pharmacologyauthors
Pinto JP,Arezes J,Dias V,Oliveira S,Vieira I,Costa M,Vos M,Carlsson A,Rikers Y,Rangel M,Porto Gdoi
10.3389/fphar.2014.00024subject
Has Abstractpub_date
2014-02-26 00:00:00pages
24issn
1663-9812journal_volume
5pub_type
杂志文章abstract::Enterovirus 71 (EV71) was implicated in a widespread outbreak of hand-foot-and-mouth disease (HFMD) across the Asia Pacific area since 1997 and has also been reported sporadically in patients with brain stem encephalitis. Neurogenic shock with pulmonary edema (PE) is a fatal complication of EV71 infection. Among inotr...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2016.00082
更新日期:2016-03-29 00:00:00
abstract::Pituitary adenylate cyclase-activating polypeptide (PACAP) and vasoactive intestinal peptide (VIP) through the binding of vasoactive intestinal peptide receptors (VIPRs), perform a wide variety of effects in human cancers, including glioblastoma multiforme (GBM). This tumor is characterized by extensive areas of hypox...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2016.00139
更新日期:2016-05-31 00:00:00
abstract::Drug resistance is one of the main reasons of chemotherapy failure. Therefore, overcoming drug resistance is an invaluable approach to identify novel anticancer drugs that have the potential to bypass or overcome resistance to established drugs and to substantially increase life span of cancer patients for effective c...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00355
更新日期:2018-04-16 00:00:00
abstract::Rheumatoid arthritis (RA) is a progressive autoimmune disease specific to synovial joints; it causes joint damage and other systemic abnormalities, thereby leading to physical disability and early mortality. Marine sponge-derived fungi, Pestalotiopsis sp., secrete immunosuppressive compounds in the culture broth. In t...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00726
更新日期:2018-07-20 00:00:00
abstract:Background:MicroRNAs are known to regulate carcinogenesis of osteosarcoma. Although, miR-16-5p is known to exert inhibitory effects on several forms of cancers, its effects on the growth and invasion of osteosarcoma have not been studied. Methods:We collected human osteosarcoma specimens and adjacent tissues to detect...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.01324
更新日期:2020-08-26 00:00:00
abstract::Successful recovery from hepatectomy is partially contingent upon the rate of residual liver regeneration. The traditional Chinese medicines known as Periplaneta americana extracts (PAEs) positively influence wound healing by promoting tissue repair. However, the effect of PAEs on liver regeneration is unknown. We use...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.01174
更新日期:2020-07-31 00:00:00
abstract::Cervical cancer is the fourth most common cancer that affects women, mainly through human papilloma virus (HPV) infection with high-risk HPV16 and HPV18. The present study investigated the in vitro anticancer activity and mechanism of action of a proanthocyanidin polymer-rich fraction of Stryphnodendron adstringens (F...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00694
更新日期:2018-07-03 00:00:00
abstract::Calcium-calmodulin/dependent protein kinase II (CaMKII) plays an essential role in LTP induction, but since it has the capacity to remain persistently activated even after the decay of external stimuli it has been proposed that it can also be necessary for LTP maintenance and therefore for memory persistence. It has b...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2017.00822
更新日期:2017-11-14 00:00:00
abstract::B lymphocytes play a critical role in humoral immunity. Abnormal B cell development and function cause a variety of hematological malignancies such as myeloma, B cell lymphoma, and leukemia. Histone deacetylase 6 (HDAC6) inhibitors alone or in combination with other drugs have shown efficacy in several hematological m...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2020.00971
更新日期:2020-06-26 00:00:00
abstract::In Mexico, the Adenophyllum aurantium (L.) Strother plant is consumed as an infusion to treat intestinal diseases such as amoebiasis, which is an endemic health problem in Mexico and other countries. However, the effect of A. aurantium on Entamoeba histolytica, the causative agent of amoebiasis, is unknown. An aerial ...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2016.00169
更新日期:2016-06-27 00:00:00
abstract::Salvia miltiorrhiza Bunge, a member of the Lamiaceae family, is valued in traditional Chinese Medicine. Its dried root (named Danshen) has been used for hundreds of years, primarily for the treatment of cardiovascular and cerebrovascular diseases. Tanshinones are the main active ingredients in S. miltiorrhiza and exhi...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2019.00202
更新日期:2019-03-14 00:00:00
abstract::Tacrolimus (Tac) is a profoundly effective immunosuppressant that reduces the risk of rejection after solid organ transplantation. However, its use is hampered by its narrow therapeutic window along with its highly variable pharmacological (pharmacokinetic [PK] and pharmacodynamic [PD]) profile. Part of this variabili...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2017.00358
更新日期:2017-06-08 00:00:00
abstract::ORY-1001, an inhibitor of covalent lysine (K)-specific demethylase 1A (KDM1A), has been used as a therapy for the treatment of acute leukemia. However, the underlying mechanisms of anticancer are still not fully elucidated. Here, we report that KDM1A is highly expressed in lung cancers, where it appears to drive aggre...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.01411
更新日期:2018-12-04 00:00:00
abstract::[This corrects the article DOI: 10.3389/fphar.2020.00739.]. ...
journal_title:Frontiers in pharmacology
pub_type: 已发布勘误
doi:10.3389/fphar.2020.00878
更新日期:2020-06-10 00:00:00
abstract::How do psychedelic drugs produce their characteristic range of acute effects in perception, emotion, cognition, and sense of self? How do these effects relate to the clinical efficacy of psychedelic-assisted therapies? Efforts to understand psychedelic phenomena date back more than a century in Western science. In thi...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2018.00172
更新日期:2018-03-02 00:00:00
abstract:BACKGROUND:Abiraterone Acetate (AA) is approved for the treatment of mCRPC after failure of androgen deprivation therapy in whom chemotherapy is not yet clinically indicated and for treatment of mCRPC progressed during or after docetaxel-based chemotherapy regimen. The aim of this study is to evaluate the role of early...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2016.00123
更新日期:2016-05-18 00:00:00
abstract::Bone regeneration repairs bone tissue lost due to trauma, fractures, and tumors, or absent due to congenital disorders. The extracellular matrix (ECM) is an intricate dynamic bio-environment with precisely regulated mechanical and biochemical properties. In bone, ECMs are involved in regulating cell adhesion, prolifer...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2020.00757
更新日期:2020-05-26 00:00:00
abstract::Objective: Calcium dobesilate (CaD), an effective drug for the treatment of diabetic microvascular complications, especially diabetic retinopathy, is widely used in the clinic. Interestingly, several studies have indicated that CaD is therapeutic for diabetic kidney disease (DKD). Recently, evidence has indicated that...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2019.00886
更新日期:2019-08-09 00:00:00
abstract::Aims: The present study aims to detect the effect of acanthoic acid (AA) on alcohol exposure-induced liver lipid deposition and inflammation, and to explore the mechanisms. Methods: C57BL/6 mice were pretreated with single dose of AA (20 and 40 mg/kg) by oral gavage or equal volume of saline, and then exposed to three...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2017.00134
更新日期:2017-03-16 00:00:00
abstract::Background: Alzheimer's disease (AD), is a progressive neurodegenerative disease that is characterized by cognitive loss. Most researchers believe that aggregation and accumulation of β-amyloid peptides (Aβ) in brain cells are the central pathological hallmark of this disease. Methods: Based on the amyloid hypothesis,...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2017.00969
更新日期:2018-01-08 00:00:00
abstract::One approach to experimental science involves creating hypotheses, then testing them by varying one or more independent variables, and assessing the effects of this variation on the processes of interest. We use this strategy to compare the intellectual status and available evidence for two models or views of mechanis...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2014.00231
更新日期:2014-10-31 00:00:00
abstract::Persistent activation of STAT3 plays an important role in the development of triple-negative breast cancer (TNBC), and suppression of STAT3 is considered as a novel approach for cancer therapy. In this project, we aimed to examine the anticancer activity and molecular mechanism of eupalinolide J (EJ) in TNBC cells. Th...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2019.01071
更新日期:2019-09-19 00:00:00
abstract::Fungal secondary metabolites serve as a rich resource for exploring lead compounds with medicinal importance. Diorcinol N (DN), a fungal secondary metabolite isolated from an endophytic fungus, Arthrinium arundinis, exhibits robust anticancer activity. However, the anticancer mechanism of DN remains unclear. In this s...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2020.570450
更新日期:2020-10-15 00:00:00
abstract::Objective: San-Cao granule (SCG), a traditional Chinese herb formula, has been used for treating autoimmune hepatitis (AIH) in our clinics for a long time. However, its active ingredients and mechanisms of action were still unknown due to its complicated chemical compositions. In the present study, the pharmacological...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00624
更新日期:2018-06-12 00:00:00
abstract::Exhaustive exercise has emerged as an important health issue nowadays. This study was designed to assess the metabolite abnormalities of rats after exhaustive exercise and the holistic efficacy of Chinese medicine Sanqi oral solution (SQ). Through exhaustive swimming, the exhaustive exercise model in rats was establis...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2019.00704
更新日期:2019-07-04 00:00:00
abstract::The hepatotoxicity induced by Polygoni Multiflori Radix Praeparata (PM) has aroused great concern throughout the world. Hence, it is worthwhile to perform studies on the detoxification with the combined use of medicinal herbs based on the compatibility theory of traditional Chinese medicine. In this work, the rat mode...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2016.00386
更新日期:2016-10-18 00:00:00
abstract::Background: Xuebijing injection (XBJ), transforming from Xuefuzhuyu decoction, is the only Chinese medicine injection approved for sepsis. XBJ and ulinastatin (UTI) combination therapy is supposed to be beneficial for sepsis patients. To fill the gap between the lack of evidence for the efficacy of combination therapy...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章
doi:10.3389/fphar.2018.00743
更新日期:2018-07-24 00:00:00
abstract::Impetigo is the most common childhood skin infection in the world. There are two patterns of impetigo: nonbullous (or impetigo contagiosa) and bullous. The nonbullous type is due to Staphylococcus aureus and group A beta-haemolytic Streptococcus and occurs in 70% of impetigo cases. Impetigo is often a self-limited dis...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2020.559708
更新日期:2020-11-18 00:00:00
abstract::Lipid emulsions (LEs), an integral component in parenteral nutrition (PN) feeding, have shifted from the primary aim of delivering non-protein calories and essential fatty acids to defined therapeutic outcomes such as reducing inflammation, and improving metabolic and clinical outcomes. Use of LEs in PN for surgical a...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2020.00506
更新日期:2020-04-29 00:00:00
abstract::Hypertensive disorders of pregnancy (HDP) are a group of morbid pregnancy complications, with preeclampsia (PE) being the most common subclassification among them. PE affects 2%-8% of pregnancies globally and threatens maternal and fetal health seriously. However, the only effective treatment of PE to date is the time...
journal_title:Frontiers in pharmacology
pub_type: 杂志文章,评审
doi:10.3389/fphar.2020.596145
更新日期:2020-12-14 00:00:00