Comment on the potential role of microRNAs in hypertension

In Silico Identification of Human miR-26a-1 from Hypertension Genome Sequence

Background:

Hypertension is a global public health issue that is becoming more prevalent. It is a non-communicable disease and a great public health problem affecting almost half of the world’s adult population. Being multifactorial, hypertension is a key risk factor for stroke, coronary artery disease, heart failure, and chronic renal failure. However, the cellular and molecular mechanisms that regulate it remain mostly unknown. According to numerous studies, microRNAs (miRNAs) have been implicated in a range of cellular processes in the development of illnesses. The current study aims to identify miRNAs in hypertension from genome sequences found in public genomic databases.

Materials and Methods:

In this study, we have used bioinformatic approaches to identify miR-26a- 1 for hypertension using the NCBI database, miRBase and target scan. Finally, the RNA fold was used to create the secondary structure of miR-26a-1.

Results and Discussion:

Careful evaluation of secondary structure result showed that hsa-miR- 26a-1 has a minimum free energy of - 37.30 kcal. The correlation between miR-26a-1 and hypertension genome sequence was identified.

Conclusion:

These computational approaches have concluded that miR-26a-1 can be used as a diagnosis, prognosis and effective therapeutic target for treating hypertension. Thus, further research could enlighten the role of miR-26a-1 in hypertension.

Methylation dependent microRNA 1285-5p and sterol carrier proteins 2 in type 2 diabetes mellitus

Diabetes mellitus (DM) is one of the severe metabolic diseases found in all types of people's lives in lower, middle and high income countries. It is suggested that the prevalence of diabetes is increasing in many countries and most of the cases are type 2 DM, clinical treatments are changing now to manage type 2 DM, however, up-to-date, there is no diagnostic, prognostic, and therapeutic target for type 2 DM. MicroRNAs (miRNAs) is one of a non-protein coding RNAs that have been regulating a wide range cellular processes and induce the development of many diseases. Most of the researchers concluded that miRNAs involvement is an important process in a broad range of signaling pathways such as cell proliferation, stem cell maintenance, migration, apoptosis and gene or protein expressions. Expressed sequence tags (ESTs) are the best source of coding and non-coding sequences for the identification of miRNAs. Although DNA methylation is an important mechanism for miRNAs up-regulation, this has not been highly explored in type 2 DM. The present study is useful to elucidate the molecular mechanism of MiR-1285-5p in type 2 DM and its role in disease progression and we discovered miR-1285 as a novel prognostic, diagnostic and therapeutic target for type 2 DM.

Dissecting the functional role of microRNA 21 in osteosarcoma

Osteosarcoma (OS) is considered to be a malignant bone tumour that mainly affects the long bones, but it is also involved in other bones of the body. Currently, surgery and chemotherapy have achieved some response to patients with OS, but they are not increasing the survival rate as well as treatment options. Researchers made lot of drug options for OS, but yet, no treatment is existing in sight for the disease and needs a new insight into the molecular and signaling pathways for the disease. Now, it is necessary to develop a novel and alternative strategy for the prognosis, diagnosis and treatment options for OS. MicroRNAs (miRNAs) are a small non-coding RNA, and their size ranges from 18 to 22 nt in length. In the nucleus, miRNAs originate and transcribe into primary transcripts and later cleaved to produce stem loop-structured precursor nucleotides. microRNA 21 (miR-21) is considered to be a trivial marker for many diseases and has been upregulated in many cancers. Moreover, it plays a main role in proliferation, migration, invasion and apoptosis. miR-21 and its associated pathways are very important and play a critical role in the pathogenesis of OS and are considered to be a biomarker and a therapeutic target for OS. To our knowledge, there is no paper that demonstrates the responsibility and the role of miR-21 in OS and the number of studies related to miR-21 in OS is spare. Therefore, the main aim of this paper is to give an outline of the recent clinical investigation and importance of miR-21 in OS. It has been suggested that the up- and downregulation of miRNAs plays a crucial role in the pathogenesis and progression of OS. Normally, miR-21 was found to be upregulated in OS; however, we summarize the clinical relevance and the recent research findings associated with miR-21 in OS.