Brain metastasis (BM) represents the single most severe neurological complication of systemic cancer. The prognosis of patients with BM is poor, irrespective of the implemented treatment. The present study performed a systematic review of the literature using three online databases (PubMed, Scopus and Web of Science). Recently, a number of small RNA molecules, the microRNAs (miRNAs/miRs), have attracted increasing scientific attention. Members of the miR-200 family, which includes five miRNAs (miR-141, miR-200a, miR-200b, miR-200c and miR-429) appear to play pivotal roles in cancer initiation and metastasis. Indeed, a systematic review of the pertinent literature revealed that miR-200 family members regulate the brain metastatic cascade, particularly by modulating epithelial-to-mesenchymal transition. That holds true for the major representatives of BM, including lung and breast cancer, as well as for other less frequent secondary lesions originating from melanoma and the gastrointestinal tract. Therefore, the miRNAs may serve as potential diagnostic and/or prognostic markers, and under specific circumstances, as invaluable therapeutic targets. However, the available clinical evidence is relatively limited. A number of studies have suggested that the miR-200 family members are accurate prognostic markers of survival and resistance to chemotherapy in patients with breast cancer. Similarly, they may prove helpful in differentiating a metastatic lesion from a malignant glioma, or a hemangioblastoma from a renal cell carcinoma in patients with von Hippel Lindau syndrome, based on a cerebrospinal fluid sample. However, currently, there is no known therapeutic role for miR-200 family members in the setting of BM.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9926042PMC
http://dx.doi.org/10.3892/mco.2023.2611DOI Listing

Publication Analysis

Top Keywords

mir-200 family
16
systematic review
12
family members
12
breast cancer
8
prognostic markers
8
family
5
role mir‑200
4
mir‑200 family
4
family brain
4
brain metastases
4

Similar Publications

In the last decade the important role of small non-coding RNAs such as micro RNAs (miRs) in gene regulation in healthy and disease states became more and more evident. The miR-200-family of miRs has been shown to play a critical role in many diseases such as cancer and neurodegenerative disorders and could be potentially important for diagnosis and treatment. However, the size of miRs of about ~21-23nt provide challenges for their investigation.

View Article and Find Full Text PDF

Genetic and epigenetic regulation of non-coding RNAs: Implications in cancer metastasis, stemness and drug resistance.

Pathol Res Pract

November 2024

Institute of Bioinformatics, International Technology Park, Bangalore 560066, India; Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576104, India. Electronic address:

Article Synopsis
  • * Specific ncRNAs regulate crucial signaling pathways (e.g., Wnt, Notch, Hedgehog) that affect CSC traits like self-renewal and differentiation, with some microRNAs inhibiting these processes while certain lncRNAs enhance stemness.
  • * Understanding the interplay between ncRNAs and CSCs can lead to innovative targeted therapies that address aggressive and treatment-resistant cancers, providing new avenues for effective cancer treatment.
View Article and Find Full Text PDF

Inhalation exposure to airborne fine particulate matter (aerodynamic diameter: <2.5 µm, PM) is known to cause metabolic dysfunction-associated steatohepatitis (MASH) and the associated metabolic syndrome. Hepatic lipid accumulation and inflammation are the key characteristics of MASH.

View Article and Find Full Text PDF
Article Synopsis
  • - Gliomas are a leading cause of cancer deaths in young individuals, and there's uncertainty about the effectiveness of current treatments for certain types (WHO G2/G3) even after genetic factors like IDH1/2 mutations are considered.
  • - The study focused on the miR-200 family of microRNAs, known to regulate many important genes, to identify their relationship with clinical factors and their potential to predict outcomes in glioma patients.
  • - Results indicated that specific miR-200 family members could serve as independent survival predictors, suggesting that their expression levels could help optimize future treatment strategies for glioma patients.
View Article and Find Full Text PDF

Introduction: Increasing evidence from human and animal model studies indicates the significant role of microRNAs (miRNAs) in pancreatic beta cell function, insulin signaling, immune responses, and pathogenesis of type 1 diabetes (T1D).

Methods: We aimed, using next-generation sequencing, to screen miRNAs from peripheral blood mononuclear cells of eight independent Kuwaiti-Arab families with T1D affected siblings, consisting of 18 T1D patients and 18 unaffected members, characterized by no parent-to-child inheritance pattern.

Results: Our analysis revealed 20 miRNAs that are differentially expressed in T1D patients compared with healthy controls.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!