Publications by authors named "Fidelis T Ndombera"

Cancer constitutes a major health care burden in the world today with the situation worsening in resource poor settings as seen in most Sub-Saharan African (SSA) countries. Infections constitute by far the most common risk factors for cancer in SSA and being a typical country in this region, Kenya has experienced an upsurge in the incidence of various types of cancers in the last few decades. Although there is limited population-based data in Kenya of infections-associated cancers, this review provides an up-to-date literature-based discussion on infections-associated cancers, their pathogenesis, and preventive approaches in the country.

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Article Synopsis
  • The study explores the link between glucose metabolism, mitochondrial function, and cellular redox-homeostasis, particularly focusing on how glucose starvation affects protein glutathionylation.
  • Researchers utilized a clickable glutathione method to identify over 1300 proteins that undergo glutathionylation in response to low glucose levels in HEK293 cells, highlighting the role of reactive oxygen species.
  • One specific finding indicates that glutathionylation of the protein PP2Cα at a specific site disrupts its interaction with the mGluR3 receptor, which is vital for synaptic plasticity.*
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Small molecules that block the altered metabolism in cancer or increase the production of reactive oxygen species (ROS) are emerging as potential anti-cancer agents. Considering that various carbohydrates can be used for cellular energetics or protein N-glycosylation of which interruption can lead to cellular stress, we have synthesized and evaluated a library of N-aryl glycosides for induction of ROS and cytotoxicity in H1299 cancer cell line. Two N-aryl glycosides (K8 and H8) were identified that induce about 2-fold induction of ROS and cytotoxicity in H1299 cells.

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