Results 81 to 90 of about 732,679 (273)

A High-Throughput Method for Identifying Novel Genes That Influence Metabolic Pathways Reveals New Iron and Heme Regulation in Pseudomonas aeruginosa

open access: yesmSystems, 2021
Heme is an essential metabolite for most life on earth. Bacterial pathogens almost universally require iron to infect a host, often acquiring this nutrient in the form of heme. The Gram-negative pathogen Pseudomonas aeruginosa is no exception, where heme
David G. Glanville   +6 more
doaj   +1 more source

Protein Kinase C-β Dictates B Cell Fate by Regulating Mitochondrial Remodeling, Metabolic Reprogramming, and Heme Biosynthesis

open access: yesImmunity, 2018
&NA; PKC&bgr;‐null (Prkcb−/−) mice are severely immunodeficient. Here we show that mice whose B cells lack PKC&bgr; failed to form germinal centers and plasma cells, which undermined affinity maturation and antibody production in response to immunization.
Carlson Tsui   +12 more
semanticscholar   +1 more source

Oral Astilbin Nanogels Modulate Senescence‐Associated CD4+ T Cells and Promote Treg Induction in Aged Mice with Colitis

open access: yesAdvanced Science, EarlyView.
Fluorinated β‐glucan/pectin nanogels enable colon‐targeted oral delivery of astilbin through gastrointestinal protection, β‐glucanase‐responsive release, mucus penetration, and prolonged retention. The released astilbin attenuates senescence‐associated features of CD4+ T cells and promotes Treg responses, while the nanogel matrix modulates the gut ...
Lei Zhao   +11 more
wiley   +1 more source

The role of ClpX in erythropoietic protoporphyria

open access: yesHematology, Transfusion and Cell Therapy, 2018
Hemoglobin is an essential biological component of human physiology and its production in red blood cells relies upon proper biosynthesis of heme and globin protein.
Jared C. Whitman   +2 more
doaj   +1 more source

Enhanced heme function and mitochondrial respiration promote the progression of lung cancer cells. [PDF]

open access: yesPLoS ONE, 2013
Lung cancer is the leading cause of cancer-related mortality, and about 85% of the cases are non-small-cell lung cancer (NSCLC). Importantly, recent advance in cancer research suggests that altering cancer cell bioenergetics can provide an effective way ...
Jagmohan Hooda   +7 more
doaj   +1 more source

Characterization of the apicoplast-localized enzyme TgUroD in Toxoplasma gondii reveals a key role of the apicoplast in heme biosynthesis

open access: yesJournal of Biological Chemistry, 2019
Apicomplexan parasites such as Toxoplasma gondii possess an unusual heme biosynthesis pathway whose enzymes localize to the mitochondrion, cytosol, or apicoplast, a nonphotosynthetic plastid present in most apicomplexans.
Edwin T. Tjhin   +3 more
semanticscholar   +1 more source

Heme biosynthesis and lead anemia [PDF]

open access: yes, 2006
鉛貧血については、鉛により赤血球膜の浸透圧に対する脆弱性が増大し、そのため赤血球が破壊することによる溶血性貧血と、ヘム生合成への鉛の阻害作用による貧血の2つの観点から理解される。ここでは、ヘム生合成に影響する鉛による貧血について考察する。The nature of lead anemia is still unknown about its mechanism.
Harada, Koichi   +2 more
core  

From Synthesis to Utilization: The Ins and Outs of Mitochondrial Heme

open access: yesCells, 2020
Heme is a ubiquitous and essential iron containing metallo-organic cofactor required for virtually all aerobic life. Heme synthesis is initiated and completed in mitochondria, followed by certain covalent modifications and/or its delivery to apo ...
Samantha A. Swenson   +5 more
doaj   +1 more source

Long non-coding RNA-dependent mechanism to regulate heme biosynthesis and erythrocyte development

open access: yesNature Communications, 2018
In addition to serving as a prosthetic group for enzymes and a hemoglobin structural component, heme is a crucial homeostatic regulator of erythroid cell development and function.
Jin-Hua Liu   +16 more
semanticscholar   +1 more source

Zinc supplementation improves heme biosynthesis in rats exposed to lead [PDF]

open access: yesUniversa Medicina, 2015
Background Lead acetate (Pb) inhibits heme biosynthesis through inhibition of d-aminolevulinic acid dehydrogenase (d-ALAD), copro porphyrinogen oxidase, and ferro chelatase. Zinc supplementation increases lead-binding metallothionein proteins.
Budi Santosa   +3 more
doaj   +1 more source

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