1型糖尿病における持続的なβ細胞置換のための戦略
Todd M Brusko1,2, Holger A Russ3, Cherie L Stabler4
1Department of Pathology, Immunology and Laboratory Medicine, and Department of Pediatrics, College of Medicine, University of Florida, Gainesville, FL 32610, USA.
まとめ
新しい幹細胞療法と免疫調節治療は,現在のモニタリングとインスリン投与を超えた経路を提供して,タイプ1糖尿病患者の自然なグルコース調節を回復することを目的としています. これらの進歩は耐久性のあるベータ細胞の置換と 免疫拒絶を防ぐことを目標としています
科学分野:
- 内分泌学と代謝
- 再生医療
- 免疫学
背景:
- 現在の血糖モニタリングとインスリン治療は1型糖尿病 (T1D) の患者の生活の質を改善しますが,ネイティブ・アイレットの機能を完全に複製することはできません.
- T1Dの管理において,内生性グルコース調節の回復は重要な課題です.
研究 の 目的:
- 群島細胞置換とT1Dの免疫調節療法における統合的な進歩を検証する.
- ベータ細胞の機能を回復し,免疫媒介による破壊を防ぐための革新的なアプローチを強調する.
主な方法:
- インスリン産生細胞の生成のための幹細胞生物学における最近の進歩のレビュー
- 細胞移植と機能を改善するための新しい移植部位設計の分析
- アロインプラントの拒絶と自己免疫再発を防ぐための最先端の免疫調節戦略の探索
主要な成果:
- 幹細胞とバイオマテリアルの進歩は ベータ細胞の代替のための新しい道を開きます
- 改良された移植戦略は 機能的な小島細胞移植の可能性を高めます
- 新興の免疫調節アプローチは,長期の移植生存の障壁を克服する見込みを示しています.
結論:
- 幹細胞由来の小島と高度な免疫調節を組み合わせた統合された戦略は,持続的なT1D治療に不可欠です.
- T1Dの病因学,ベータ細胞生物学,バイオマテリアル科学の 深い理解が 治療の革新を促しています
- これらの進歩は,破壊されたベータ細胞を永続的に置き換え,タイプ1糖尿病の代謝制御を回復する大きな可能性を秘めています.
関連する概念動画
Tissue Renewal without Stem Cells
1.9K
After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
However, failure of such a system...
However, failure of such a system...
1.9K
Insulin: Biosynthesis, Chemistry, and Preparation
700
The endoplasmic reticulum (ER) of pancreatic β-cells synthesizes preproinsulin, which consists of a signal peptide, A and B chains, and a C-peptide. Preproinsulin is then cleaved and folded into proinsulin, which translocates to the Golgi apparatus for sorting and packaging into secretory granules. In these granules, enzymatic clipping generates insulin and C-peptide.
Damage or functional impairment of β-cells inhibits insulin production, leading to diabetes. Diabetes treatment...
Damage or functional impairment of β-cells inhibits insulin production, leading to diabetes. Diabetes treatment...
700
Carbohydrate Metabolism
12.7K
Carbohydrates are polymers composed of molecules containing atoms of carbon, hydrogen and oxygen. One gram of carbohydrate can provide four kilo-calories of energy, which makes it the most efficient instant energy source.
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in...
Starch accounts for approximately 60% of the carbohydrates consumed by humans. Since amylase enzymes cannot function in the stomach's acidic environment, starch can only be digested in the mouth and small intestine. Simple sugars are found naturally in milk and fruits in...
12.7K
Diabetes: Management and Pharmacotherapy
595
The therapy for diabetes aims to alleviate hyperglycemia-related symptoms, prevent acute metabolic decompensation, and reduce chronic end-organ complications. Glycemic control is evaluated through short-term (self-monitoring, continuous glucose monitoring) and long-term (A1c, fructosamine) metrics, enabling near real-time tracking of blood glucose levels and reflecting glycemic control over specific time frames.
Insulin remains the cornerstone of treatment for most patients with type 1 and many...
Insulin remains the cornerstone of treatment for most patients with type 1 and many...
595
Diabetes Mellitus: Overview and Type I Subtype
4.0K
Diabetes mellitus is a chronic metabolic disorder characterized by high blood glucose levels due to inadequate insulin production, insulin resistance, or both. The condition affects millions worldwide and can significantly impact their health and quality of life.
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
Type 1 diabetes is an autoimmune disease in which the immune system mistakenly attacks and destroys the insulin-producing beta cells in the pancreas. As a result, the body is unable to produce sufficient insulin, and individuals with...
4.0K
Insulin: Dosing Regimen and Adverse Effects
329
Insulin-replacement therapy usually includes both long-acting insulin (basal) and short-acting insulin (to cater to postprandial needs). In a diverse group of type 1 diabetes patients, the average daily insulin dose is typically 0.5-0.7 units/kg body weight. However, obese patients and pubertal adolescents may need more due to insulin resistance.
The basal dose constitutes about 40%-50% of the total daily dose, with the rest as premeal insulin. The mealtime insulin dose should mirror...
The basal dose constitutes about 40%-50% of the total daily dose, with the rest as premeal insulin. The mealtime insulin dose should mirror...
329


