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関連する概念動画

Erythropoiesis01:14

Erythropoiesis

5.6K
Red blood cells  (RBCs) transport oxygen to all body tissues. These cells survive only for 120 days and then need to be replenished. Erythropoiesis is the process of RBC production. In healthy individuals, erythropoiesis ensures all tissues are amply supplied with oxygen. In addition, blood loss due to injury leads to a drop in the physiological oxygen level that will cause erythropoiesis. Any defect in erythropoiesis leads to several physiological disorders, including thalassemia, anemia,...
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Factors Affecting Erythropoiesis01:24

Factors Affecting Erythropoiesis

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The cardiovascular system regulates the number of erythrocytes in the bloodstream to ensure optimal oxygen transport. It also prevents over-proliferation of these cells, which helps to maintain blood viscosity and flow rate.
Several factors influence the erythrocyte production rate, with tissue oxygen level being among the most critical. Intense exercise or high altitudes can cause tissue hypoxia, which triggers the kidneys to release more erythropoietin (EPO) into the bloodstream.
EPO then...
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Disorders of Erythrocytes01:27

Disorders of Erythrocytes

2.0K
Disorders of erythrocytes, or red blood cells (RBCs), include a range of conditions affecting their number, shape, or function.
Erythrocyte disorders can be broadly categorized into two main types: anemic and polycythemic conditions.
A low oxygen-carrying capacity of the blood due to the loss, lower production, or destruction of erythrocytes is termed anemia. Hemorrhagic anemia, for example, occurs when bleeding from an external wound or internal ulcer reduces erythrocyte counts.
On the other...
2.0K
Translation01:31

Translation

17.4K
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Proteins are...
17.4K
Translation01:31

Translation

154.9K
Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of...
154.9K
Role of Hematopoietic Growth Factors01:28

Role of Hematopoietic Growth Factors

3.1K
Hematopoietic growth factors are molecules that regulate the differentiation rate of hematopoietic stem cells (HSCs). Erythropoietin (EPO), primarily produced by the kidneys, plays a crucial role in erythrocyte production. When oxygen levels in the blood are low, EPO is released into the bloodstream, reaching the bone marrow, where it stimulates HSCs to differentiate and mature into erythrocytes, which are vital for oxygen transport.
Thrombopoietin (TPO), mainly released by the liver,...
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Author Spotlight: Advancing Erythropoiesis Research - A Simplified Pipeline for Assessing Hematopoietic Stem Cell Function in Myelodysplastic Syndromes
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赤血球形成におけるノンコーディングRNomeの様相:病態生理学的意義

Emma Brisot1, Laurent Metzinger1, Valérie Metzinger-Le Meuth1,2

  • 1HEMATIM UR-UPJV 4666, C.U.R.S, University of Picardie Jules Verne, CEDEX 1, 80025 Amiens, France.

Cells
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まとめ

非コードRNA(ncRNA)は赤血球産生(赤血球形成)の主要な調節因子である。本レビューでは、マイクロRNA(miRNA)と長鎖非コードRNA(lncRNA)が赤血球分化と機能にどのように影響するかを詳述し、潜在的な治療標的を提供する。

キーワード:
バイオマーカー赤血球形成遺伝子調節長鎖非コードRNAマイクロRNA赤血球

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Identification and Analysis of Mouse Erythroid Progenitors using the CD71/TER119 Flow-cytometric Assay
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Identification and Analysis of Mouse Erythroid Progenitors using the CD71/TER119 Flow-cytometric Assay

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Mouse Fetal Liver Culture System to Dissect Target Gene Functions at the Early and Late Stages of Terminal Erythropoiesis
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Identification and Analysis of Mouse Erythroid Progenitors using the CD71/TER119 Flow-cytometric Assay
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Mouse Fetal Liver Culture System to Dissect Target Gene Functions at the Early and Late Stages of Terminal Erythropoiesis
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科学分野:

  • 血液学
  • 分子生物学
  • 遺伝学

背景:

  • 赤血球産生プロセスである赤血球形成は、酸素輸送に不可欠です。
  • マイクロRNA(miRNA)および長鎖非コードRNA(lncRNA)を含む非コードRNA(ncRNA)は、生物学的プロセスにおける調節的役割でますます認識されています。
  • 赤血球形成の調節不全は、貧血などの様々な血液疾患に関連しています。

研究 の 目的:

  • 赤血球分化、成熟、機能の調節におけるncRNAの多面的な役割をレビューすること。
  • miRNAとlncRNAが転写および転写後レベルで赤血球形成を微調整するメカニズムを探求すること。
  • 血液疾患のバイオマーカーおよび治療標的としてのncRNAの可能性を強調すること。

主な方法:

  • ncRNAと赤血球形成に関する既存の研究の文献レビューと合成。
  • 特定のmiRNAとlncRNAが赤血球系列への関与、ヘモグロビン合成、鉄代謝、細胞形態に与える影響を調査した研究の分析。
  • 赤血球形成中のクロマチンリモデリング、スプライシング、アポトーシス、脱核に関連する証拠の検討。

主要な成果:

  • 特定のmiRNAは、赤血球系列への関与、ヘモグロビンスイッチング、鉄代謝、細胞形態に著しく影響します。
  • lncRNAは、クロマチン構造、代替スプライシング、アポトーシス、脱核、赤血球遺伝子発現の調節において重要な役割を果たします。
  • ncRNAは、環境要因や病理学的状態によって調節され、赤血球形成に影響を与えます。

結論:

  • ncRNAは、生理学的および病理学的赤血球形成の不可欠なオーケストレーターです。
  • ncRNAの様相を理解することは、赤血球産生の複雑な調節に関する洞察を提供します。
  • ncRNAは、貧血および関連する血液疾患の有望なバイオマーカーおよび治療標的を表します。