Browsing by Author "Valsala Gopalakrishnan, Abilash"

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    HPV-associated cancers: insights into the mechanistic scenario and latest updates
    (Springer, 2023-06-26T00:00:00) Mukherjee, Anirban Goutam; Ramesh Wanjari, Uddesh; Valsala Gopalakrishnan, Abilash; Jayaraj, Rama; Katturajan, Ramkumar; Kannampuzha, Sandra; Murali, Reshma; Namachivayam, Arunraj; Evan Prince, Sabina; Vellingiri, Balachandar; Dey, Abhijit; Renu, Kaviyarasi
    Cancer and related diseases are the second leading cause of death worldwide. The human papillomavirus (HPV) is an infectious agent that can be spread mainly through sexual contact and has been linked to several malignancies in both sexes. HPV is linked to almost all cases of cervical cancer. It is also linked to many head and neck cancer (HNC) cases, especially oropharyngeal cancer. Also, some HPV-related cancers, like vaginal, vulvar, penile, and anal cancers, are related to the anogenital area. Over the past few decades, testing for and preventing cervical cancer has improved, but anogenital cancers are still harder to confirm. HPV16 and HPV18 have been extensively researched due to their significant carcinogenic potential. The products of two early viral genes, E6 and E7, have been identified as playing crucial roles in cellular transformation, as emphasized by biological investigations. The complete characterization of numerous mechanisms employed by E6 and E7 in undermining the regulation of essential cellular processes has significantly contributed to our comprehension of HPV-induced cancer progression. This review focuses on the various types of cancers caused by HPV infection and also sheds light on the signaling cascades involved in the same. � 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
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    miRNA in Parkinson's disease:�From pathogenesis to theranostic approaches
    (John Wiley and Sons Inc, 2022-12-11T00:00:00) Elangovan, Ajay; Venkatesan, Dhivya; Selvaraj, Priyanka; Pasha, Md. Younus; Babu, Harysh Winster Suresh; Iyer, Mahalaxmi; Narayanasamy, Arul; Subramaniam, Mohana Devi; Valsala Gopalakrishnan, Abilash; Kumar, Nachimuthu Senthil; Vellingiri, Balachandar
    Parkinson's disease (PD) is an age associated neurological disorder which is specified by cardinal motor symptoms such as tremor, stiffness, bradykinesia, postural instability, and non-motor symptoms. Dopaminergic neurons degradation in substantia nigra region and aggregation of ?Syn are the classic signs of molecular defects noticed in PD pathogenesis. The discovery of microRNAs (miRNA) predicted to have a pivotal part in various processes regarding regularizing the cellular functions. Studies on dysregulation of miRNA in PD pathogenesis has recently gained the concern where our review unravels the role of miRNA expression in PD and its necessity in clinical validation for therapeutic development in PD. Here, we discussed how miRNA associated with ageing process in PD through molecular mechanistic approach of miRNAs on sirtuins, tumor necrosis factor-alpha and interleukin-6, dopamine loss, oxidative stress and autophagic dysregulation. Further we have also conferred the expression of miRNAs affected by SNCA gene expression, neuronal differentiation and its therapeutic potential with PD. In conclusion, we suggest more rigorous studies should be conducted on understanding the mechanisms and functions of miRNA in PD which will eventually lead to discovery of novel and promising therapeutics for PD. � 2022 Wiley Periodicals LLC.