|
1
|
Rudraprasad D, K V, Nirmal J, Ali MH, Joseph J. Complement Cascade 8 - Alpha and Calpain-2 in Extracellular Vesicles of Human Vitreous as Biomarkers of Infectious Endophthalmitis. Transl Vis Sci Technol 2024; 13:14. [PMID: 38767905 PMCID: PMC11114616 DOI: 10.1167/tvst.13.5.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 04/09/2024] [Indexed: 05/22/2024] Open
Abstract
Purpose Extracellular vesicles (EVs) are messenger pigeons of the cells that communicate about cellular microenvironment. In this study, we evaluated the expression of C8α and calpain-2 in EVs from vitreous of patients with bacterial endophthalmitis to assess its utility as a diagnostic marker. Methods EVs were isolated from vitreous of patients with bacterial endophthalmitis (culture positive and culture negative) and noninfectious control by exosome isolation reagent and characterized, and the levels of C8α and calpain-2 was assessed by enzyme-linked immunosorbent assay in isolated EVs and direct vitreous. The receiver operating characteristic curve was generated to assess the diagnostic performance. Results Scanning electron microscopy (SEM) and dynamic light scattering (DLS) confirmed the presence of EVs having a diameter (nm) of 275.2 ± 93, 92 ± 22, and 77.28 ± 12 in culture-positive (CP), culture-negative (CN), and control respectively. The expression level (ng/mL) of C8α in the EVs obtained from CP was 144 ± 22 and CN was 31.2 ± 9.8, which was significantly higher (P < 0.01) than control 3.7 ± 2.4. Interestingly, C8α is not expressed directly in the vitreous of CN and controls. Calpain-2 was significantly downregulated (P ≤ 0.0001) in CP (0.94 ± 0.16) and CN (0.70 ± 0.14) than control. The sensitivity and specificity of 1 for C8α and calpain-2 in the EVs implied that its diagnostic accuracy was significant. Conclusions This study showed that the EV proteins C8α and calpain-2 could be suitable diagnostic markers for endophthalmitis. However, the presence of C8α in the EVs of CN samples but not in direct vitreous promises EVs as the future of diagnostics. Translational Relevance Expression levels of EV-calpain-2 and EV-C8α could diagnose CN bacterial endophthalmitis.
Collapse
Affiliation(s)
- Dhanwini Rudraprasad
- Jhaveri Microbiology Centre, Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, Telangana, India
- Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Velmurugan K
- Department of pharmacy, BITS Pilani, Hyderabad, Telangana, India
| | - Jayabalan Nirmal
- Department of pharmacy, BITS Pilani, Hyderabad, Telangana, India
| | - Md. Hasnat Ali
- Center for Biostatistics and Epidemiology, L V Prasad Eye Institute, Hyderabad, Telangana, India
| | - Joveeta Joseph
- Jhaveri Microbiology Centre, Brien Holden Eye Research Centre, LV Prasad Eye Institute, Hyderabad, Telangana, India
- Ramoji Foundation Centre of Ocular Infections, LV Prasad Eye Institute, Hyderabad, Telangana, India
| |
Collapse
|
|
2
|
Nimma R, Kalvala AK, Patel N, Surapaneni SK, Sun L, Singh R, Nottingham E, Bagde A, Kommineni N, Arthur P, Nathani A, Meckes DG, Singh M. Combined Transcriptomic and Proteomic Profiling to Unravel Osimertinib, CARP-1 Functional Mimetic (CFM 4.17) Formulation and Telmisartan Combo Treatment in NSCLC Tumor Xenografts. Pharmaceutics 2022; 14:pharmaceutics14061156. [PMID: 35745729 PMCID: PMC9230742 DOI: 10.3390/pharmaceutics14061156] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/30/2022] [Accepted: 05/11/2022] [Indexed: 01/05/2023] Open
Abstract
The epidermal growth factor receptor (EGFR) is highly expressed in many non-small cell lung cancers (NSCLC), necessitating the use of EGFR-tyrosine kinase inhibitors (TKIs) as first-line treatments. Osimertinib (OSM), a third-generation TKI, is routinely used in clinics, but T790M mutations in exon 20 of the EGFR receptor lead to resistance against OSM, necessitating the development of more effective therapeutics. Telmisartan (TLM), OSM, and cell cycle and apoptosis regulatory protein 1 (CARP-1) functional mimetic treatments (CFM4.17) were evaluated in this study against experimental H1975 tumor xenografts to ascertain their anti-cancer effects. Briefly, tumor growth was studied in H1975 xenografts in athymic nude mice, gene and protein expressions were analyzed using next-generation RNA sequencing, proteomics, RT-PCR, and Western blotting. TLM pre-treatment significantly reduced the tumor burden when combined with CFM-4.17 nanoformulation and OSM combination (TLM_CFM-F_OSM) than their respective single treatments or combination of OSM and TLM with CFM 4.17. Data from RNA sequencing and proteomics revealed that TLM_CFM-F_OSM decreased the expression of Lamin B2, STAT3, SOD, NFKB, MMP-1, TGF beta, Sox-2, and PD-L1 proteins while increasing the expression of AMPK proteins, which was also confirmed by RT-PCR, proteomics, and Western blotting. According to our findings, the TLM_CFM-F_OSM combination has a superior anti-cancer effect in the treatment of NSCLC by affecting multiple resistant markers that regulate mitochondrial homeostasis, inflammation, oxidative stress, and apoptosis.
Collapse
Affiliation(s)
- Ramesh Nimma
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA; (R.N.); (A.K.K.); (N.P.); (S.K.S.); (E.N.); (A.B.); (N.K.); (P.A.); (A.N.)
| | - Anil Kumar Kalvala
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA; (R.N.); (A.K.K.); (N.P.); (S.K.S.); (E.N.); (A.B.); (N.K.); (P.A.); (A.N.)
| | - Nilkumar Patel
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA; (R.N.); (A.K.K.); (N.P.); (S.K.S.); (E.N.); (A.B.); (N.K.); (P.A.); (A.N.)
| | - Sunil Kumar Surapaneni
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA; (R.N.); (A.K.K.); (N.P.); (S.K.S.); (E.N.); (A.B.); (N.K.); (P.A.); (A.N.)
| | - Li Sun
- Department of Biomedical Sciences, College of Medicine, Florida State University, 1115 West Call Street, Tallahassee, FL 32306, USA; (L.S.); (D.G.M.J.)
| | - Rakesh Singh
- Department of Translational Science Laboratory, College of Medicine, Florida State University, 1115 West Call St., Tallahassee, FL 32306, USA;
| | - Ebony Nottingham
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA; (R.N.); (A.K.K.); (N.P.); (S.K.S.); (E.N.); (A.B.); (N.K.); (P.A.); (A.N.)
| | - Arvind Bagde
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA; (R.N.); (A.K.K.); (N.P.); (S.K.S.); (E.N.); (A.B.); (N.K.); (P.A.); (A.N.)
| | - Nagavendra Kommineni
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA; (R.N.); (A.K.K.); (N.P.); (S.K.S.); (E.N.); (A.B.); (N.K.); (P.A.); (A.N.)
| | - Peggy Arthur
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA; (R.N.); (A.K.K.); (N.P.); (S.K.S.); (E.N.); (A.B.); (N.K.); (P.A.); (A.N.)
| | - Aakash Nathani
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA; (R.N.); (A.K.K.); (N.P.); (S.K.S.); (E.N.); (A.B.); (N.K.); (P.A.); (A.N.)
| | - David G. Meckes
- Department of Biomedical Sciences, College of Medicine, Florida State University, 1115 West Call Street, Tallahassee, FL 32306, USA; (L.S.); (D.G.M.J.)
| | - Mandip Singh
- College of Pharmacy and Pharmaceutical Sciences, Florida A&M University, Tallahassee, FL 32307, USA; (R.N.); (A.K.K.); (N.P.); (S.K.S.); (E.N.); (A.B.); (N.K.); (P.A.); (A.N.)
- Correspondence: or ; Tel.: +1-850-561-2790; Fax: +1-850-599-3813
| |
Collapse
|