Inhibition of Alzheimer's amyloid-β peptide aggregation and its disruption by a conformationally restricted α/β hybrid peptide.

نویسندگان

  • Ashim Paul
  • Krishna Chaitanya Nadimpally
  • Tanmay Mondal
  • Kishore Thalluri
  • Bhubaneswar Mandal
چکیده

Insertion of an anthranilic acid in an amyloidogenic peptide sequence generates a novel conformationally restricted α/β-hybrid peptide that inhibits amyloid formation of Aβ(1-40) and disrupts preformed fibrillar aggregates in vitro. Such β-sheet breaker hybrid peptides (BSBHps) may be useful for designing novel physiologically important compounds relevant to diverse amyloidoses and for studying the process of aggregation.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Disaggregation of Amylin Aggregate by Novel Conformationally Restricted Aminobenzoic Acid containing α/β and α/γ Hybrid Peptidomimetics

Diabetes has emerged as a threat to the current world. More than ninety five per cent of all the diabetic population has type 2 diabetes mellitus (T2DM). Aggregates of Amylin hormone, which is co-secreted with insulin from the pancreatic β-cells, inhibit the activities of insulin and glucagon and cause T2DM. Importance of the conformationally restricted peptides for drug design against T2DM has...

متن کامل

Molecular Dynamics and Molecular Docking Studies on the Interaction between Four Tetrahydroxy Derivatives of Polyphenyls and Beta Amyloid

Interactions of 3,3',4,4'-tetrahydroxybiphenyl (BPT) and three isomeric 3,3",4,4"-tetrahydroxyterphenyls (OTT, MTT, PTT) with Alzheimer’s amyloid-β peptide (Aβ) were studied by molecular dynamics simulation and molecular docking. Structural parameters such as Root-mean-square derivations (RMSD), radial distribution function (RDF), helix percentage and other physical parameters were obtained. Th...

متن کامل

Caspase inhibition in neuroinflammation induced by soluble β amyloid monomer, protects cells from abnormal survival and proliferation, via attenuation of NFқB activity

Introduction: Evidence suggests that neuronal apoptosis in neurodegenerative diseases is correlated with inflammatory reactions. The beneficial or detrimental role of apoptosis in neuroinflammation is unclear. Elucidating this question may be helpful in management of neurodegenerative diseases. Since TNF-α is able to induce apoptosis as well as increased viability of the cells by activation ...

متن کامل

The effect of Carbon nanotube on the most effective peptide in Alzheimer's disease in the presence of Dimethyl Sulfoxide: In Silico approach

Due to the non-polar nature of carbon nanotubes, their use in aqueous environments is limited. Therefore, auxiliary solvents such as dimethyl sulfoxide are used to study the interactions between the amyloid-β peptide and carbon nanotubes. In this work, the interaction of Aβ (1-42), the most effective peptide in the development of Alzheimer's disease, with the carbon nanotube was performed using...

متن کامل

Inhibition of Amyloid Fibrils Formation from Hen Egg White Lysozyme by Satureia Hortensis Extract and its Effect on Learning and Spatial Memory of Rats

Background & Aims: Alzheimer's disease is a neurodegenerative disorder characterized by the abnormal aggregation of amyloid-β plaques in the brain. Although several studies have been done for finding effective medicines in the treatment of this disease, a drug that inhibits amyloid β aggregation and ameliorates the disorder has not been approved so far. One important therapeutic approach is use...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Chemical communications

دوره 51 12  شماره 

صفحات  -

تاریخ انتشار 2015