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Distinct miRNA319a identified from Persicaria chinensis mediates cross-kingdom suppression of cervical cancer targeting ITGA3

ABSTRACT: Persicaria chinensis, a well-known traditional Chinese medicinal herb that is both edible and medicinal, has been widely acknowledged for its therapeutic effects, such as anti-inflammatory, antioxidant, and antitumor activities. However, the role of miRNAs from this plant in the cross-kingdom regulation of human diseases has not been investigated. In this study, we analyze the miRNA expression profile of P. chinensis using high-throughput sequencing and identify a total of 673 miRNAs, including 422 novel miRNAs that are unique to this plant and 251 conserved miRNAs. Among the conserved miRNAs, pch-miR319a is found to be the most abundant. Moreover, food-oriented pch-miR319a accumulates in the uterus and tumors and exhibits a rich repertoire of target genes within cancer-related pathways, demonstrating significant cross-kingdom regulatory potential. Utilizing the dual-luciferase reporter gene assay, we demonstrate that pch-miR319a from P. chinensis targets the Itga3 gene, which is associated with cervical cancer progression. Overexpression of pch-miR319a significantly decreases the viability, migration, and induces apoptosis of HeLa cervical cancer cells in vitro. Moreover, in a syngeneic mouse tumor model of cervical cancer, treatment with pch-miR319a effectively inhibits tumor growth and downregulates the expression of ITGA3 and the proliferation marker Ki-67. Our study highlights the potential of pch-miR319a from P. chinensis as a novel therapeutic agent for cervical cancer by targeting ITGA3 and provides new insights into the cross-kingdom regulatory mechanisms of plant miRNAs in human diseases.

ORGANISM(S): Mus musculus Homo sapiens Persicaria chinensis

PROVIDER: GSE305052 | GEO | 2026/01/16

REPOSITORIES: GEO

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Project description:MicroRNAs (miRNAs) are endogenous, noncoding, smallRNAs that regulate gene expression at the post-transcriptional level during plant development, growth and seed germination. Among all medicinal plants, Moringa oleifera is one of the most useful trees for which, despite its diffusion, no information about its miRNAs and their respective target genes is available. In this research, we report results obtained from a high-throughput sequencing analysis performed with the Illumina platform. A total of 31,290,964 raw reads were produced from M. oleifera seed smallRNA library. First, we found 99 conserved miRNAs and 43 novel ones that we partially validated by qRT- PCR. Second, by comparing their expression abundances with those of other common plants, we identified 20 conserved M. oleifera miRNAs. For both these results an in silico analysis allowed us to predict some of their targets which in turn allowed us to link them to a wide range of physiological processes. Based on qRT-PCR expression analyses, we reported the expression profile of some selected conserved miRNAs in different M. oleifera tissues (roots, stems and leafs). We compared the most conserved miRNAs found in Moringa with those of other edible plants, such as Olea europaea and Brassica rapa. Furthermore, by taking advantage of a recently developed web- application based on an algorithm that compares plants and mammalian miRNAs, we identify a few possible plant miRNAs with functional homologies with mammalian ones. We used the 20 most abundant M. oleifera miRNAs to conduct a preliminary analysis to investigate potential cross-kingdom gene regulation. To our knowledge, this is the first report of M. oleifera miRNAs that uses high-throughput sequencing analysis. Our analysis increases the amount of information about plant miRNAs currently available and it can help us understanding the molecular mechanism of this medical plant. microRNA profile of M. oleifera seed, germinated on paper soaked in sterile water.

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Distinct miRNA319a identified from Persicaria chinensis mediates cross-kingdom suppression of cervical cancer targeting ITGA3

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