Bacteria ferment the glucose, from fiber, into Short Chain Fatty Acids, which help regulate many biochemical processes and pathways. We cultured Escherichia coli in Luria Broth enhanced with 15mM and 5mM of glucose. The 15mM concentration of qPCR products measured , for the target gene accA was 4,210 ng/μL. The 7.5μM sample had a concentration equaled to 375 ng/μL, and the 0μM sample had an accA concentration of 196 ng/μL. The gene accA, 1 of 4 subunits for the Acetyl-CoA Carboxylase enzyme, was suppressed by asRNA, producing a qPCR concentration of 63ng/μL. Antisense RNA for accA reduced the amount of Lux-S, a vital gene needed for propagating quorum-sensing signal molecules. Our purpose was to provide a more cumulative perspective for the pathogenesis of disease within the microbiome.
Antibiotic resistance is a significant issue for the medical community, worldwide. Many bacteria develop drug resistance by utilizing multidrug resistant or MDR efflux pumps that can export antibiotics from bacterial cells. Antibiotics are expelled from bacteria by efflux pumps a part of the resistance nodulation division (RND) family. Types of RND efflux pumps include the AcrAB-TolC tripartite protein pump. There are an excessive number of antibiotic compounds that have been discovered; however, only a few antibiotics are effective against MDR bacteria. Many bacteria become drug resistant when sharing genes that encode MDR efflux pump expression. MDR efflux pump encoding genes are incorporated into plasmids and then shared among bacteria. As a consequence, advancements in genetic engineering can sufficiently target and edit pathogenic bacterial genomes for perturbing drug resistance mechanisms. In this perspective and review, support will be provided for utilizing genetic modifications as an antimicrobial approach and tool that may effectively combat bacterial MDR. Ayhan et al. found that deleting acrB, acrA, and tolC increased the levels of antibiotic sensitivity in Escherichia coli. Researchers also found that glucose, glutamate, and fructose all induced the absorption of antibiotics by upregulating the gene expression of maeA and maeB that is a part of the MAL-pyruvate pathway. Therefore, the current perspective and review will discuss the potential efficacy of reducing antibiotic resistance by inhibiting genes that encode efflux protein pump expression while simultaneously upregulating metabolic genes for increased antibiotic uptake.
The possibility of gene editing to correct disorders is one of the most impactful therapeutic agents, currently. CRISPR Cas9-sgRNA nucleases can be used to cleave and to delete harmful or pathogenic DNA sequences, which cause genetic disorders. Cas9 nuclease with palindromic repeats can cut and delete a single point mutation or multiple DNA target site sequences. The Cas9, attached to a sgRNA or a guiding RNA, finds and then cleaves the target DNA sequence. The Cas9-sgRNA method of cleavage has corrected DNA mutations that cause cataracts in the eyes, cystic fibrosis, and chronic granulomatous disease. However, there are issues for producing a less strenuous delivery of Cas9-sgRA to target DNA sequences. Delivering Cas-9 nucleases are negatively affected by off-target DNA sites, sgRNA design, off-target cleavage, Cas9 activation, and the method of delivery. This review focuses on oral and ingested delivery methods to effectively guide the transport of Cas9-sgRNA nucleases in vivo. A review of Cas9 delivery will present possible alternatives for nuclease delivery within optimized lipid-nanoparticles, plant, algae, and bacterial-based orally ingested edibles. This review will attempt to provide evidence in support of enhancing the Cas9 delivery through therapeutic bioencapsulated ingestion. In this review, it is suggested that the ingestion of encapsulated edibles carrying the nuclease can more directly target cells within the gastrointestinal tract for blood or lymph circulation.
C-C Chemokine receptor type 5 (CCR5) is expressed on the CD4 T cell surface where CXCR4 and CCR5 expressions are controlled differently during the activation of T cells and with the binding of interleukin type-2 (IL-2). IL-2 can upregulate CCR1 and CCR2 in CD45R01 T cells and increase the T lymphocyte chemotaxis toward CC-chemokines. CD4+ T cells are either apart of the T helper 1 or Th1 lymphocytes that release interferon gamma (IFNγ) and lymphotoxin that provide cellular immunity to internal pathogens and T helper cells type 2 (Th2), which secrete interleukins 4 and 5 (IL-4 and IL-5). IL-4 and IL-5 cause an allergic and humoral immune response to parasites. Th2 lymphocytes use CCR3 chemokine receptors. CCR5 and CXCR3 chemokine receptors are specific for CD4+ Th1 and Th2 lymphocytes. CCR5Δ32 is a 32-base-pair deletion of the CCR5 gene. CCR5 is a co-receptor for the entrance of the human immunodeficiency virus-1 (HIV-1). CCR5Δ32 creates a malfunction of the CCR5 protein that can prevent HIV-1 infection. However, the CCR5Δ32 32-base-pair deletion is not prevalent and predominant in many populations worldwide and there also exist more genetic variations of CCR5 known as CCR5-SNPs. An alternative polymorphism was identified based on the CCR5 gene that was identified as a A to G (A/G) point mutation. This point mutation is located at the 59029 locus on the promoter that lowers the expression rate of CCR5. Gurdol et al. found activity at the promoter of CCR5/590029G was 45% lesser than the CCR5/59029A. The genetic variations of CCR5 SNPs also include: 2459G>SNP of CCR5, C101X, CCR5 gene position at -2273, and the A to G SNP mutation found in two South African blacks. Therefore, more studies are needed to find more and varied chemokine polymorphisms that are present in many diverse populations in the world. The aim of this literature review is to describe the immense impact of CCR5 SNP mutations on viral infection susceptibility, on the pathogenesis of chronic conditions, to endorse the increased discovery of more novel CCR5 SNPs, and to show the significant potential of anti-CCR5 therapies to treat multiple diseased conditions.
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