scholarly journals Analogous venom peptides acting on different pathways: a study of Bicarinalin and U<sub>9</sub>-MYRTX-Tb1a from <em>T. bicarinatum</em> venom

2021 ◽  
Author(s):  
Steven Ascoët ◽  
Michel Treilhou ◽  
Nathan Tene ◽  
Axel Touchard ◽  
Valentine Barasse ◽  
...  
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2020 ◽  
Vol 21 (2) ◽  
pp. 97-109 ◽  
Author(s):  
Ana P. dos Santos ◽  
Tamara G. de Araújo ◽  
Gandhi Rádis-Baptista

Venom-derived peptides display diverse biological and pharmacological activities, making them useful in drug discovery platforms and for a wide range of applications in medicine and pharmaceutical biotechnology. Due to their target specificities, venom peptides have the potential to be developed into biopharmaceuticals to treat various health conditions such as diabetes mellitus, hypertension, and chronic pain. Despite the high potential for drug development, several limitations preclude the direct use of peptides as therapeutics and hamper the process of converting venom peptides into pharmaceuticals. These limitations include, for instance, chemical instability, poor oral absorption, short halflife, and off-target cytotoxicity. One strategy to overcome these disadvantages relies on the formulation of bioactive peptides with nanocarriers. A range of biocompatible materials are now available that can serve as nanocarriers and can improve the bioavailability of therapeutic and venom-derived peptides for clinical and diagnostic application. Examples of isolated venom peptides and crude animal venoms that have been encapsulated and formulated with different types of nanomaterials with promising results are increasingly reported. Based on the current data, a wealth of information can be collected regarding the utilization of nanocarriers to encapsulate venom peptides and render them bioavailable for pharmaceutical use. Overall, nanomaterials arise as essential components in the preparation of biopharmaceuticals that are based on biological and pharmacological active venom-derived peptides.


2020 ◽  
Vol 117 (21) ◽  
pp. 11399-11408 ◽  
Author(s):  
Sandy S. Pineda ◽  
Yanni K.-Y. Chin ◽  
Eivind A. B. Undheim ◽  
Sebastian Senff ◽  
Mehdi Mobli ◽  
...  

Spiders are one of the most successful venomous animals, with more than 48,000 described species. Most spider venoms are dominated by cysteine-rich peptides with a diverse range of pharmacological activities. Some spider venoms contain thousands of unique peptides, but little is known about the mechanisms used to generate such complex chemical arsenals. We used an integrated transcriptomic, proteomic, and structural biology approach to demonstrate that the lethal Australian funnel-web spider produces 33 superfamilies of venom peptides and proteins. Twenty-six of the 33 superfamilies are disulfide-rich peptides, and we show that 15 of these are knottins that contribute >90% of the venom proteome. NMR analyses revealed that most of these disulfide-rich peptides are structurally related and range in complexity from simple to highly elaborated knottin domains, as well as double-knot toxins, that likely evolved from a single ancestral toxin gene.


1999 ◽  
Vol 7 (2) ◽  
pp. 389-394 ◽  
Author(s):  
Silvana D’Alessio ◽  
Carlo Gallina ◽  
Enrico Gavuzzo ◽  
Cesare Giordano ◽  
Barbara Gorini ◽  
...  
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2021 ◽  
Author(s):  
Chandamita Saikia ◽  
Gili Ben-Nisan ◽  
Eitan Reuveny ◽  
Izhar Karbat
Keyword(s):  

2015 ◽  
Vol 72 (23) ◽  
pp. 4501-4522 ◽  
Author(s):  
Peter V. Dubovskii ◽  
Alexander A. Vassilevski ◽  
Sergey A. Kozlov ◽  
Alexey V. Feofanov ◽  
Eugene V. Grishin ◽  
...  
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2018 ◽  
Vol 25 (7) ◽  
pp. 652-662 ◽  
Author(s):  
Naqab Khan ◽  
Zahid Rasul Niazi ◽  
Nauman Rahim Khan ◽  
Kifayatullah Shah ◽  
Khurram Rehman ◽  
...  

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