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Vengurlekar V, Shetty O, Gurav M, Bapat P, Karnik N, Wagh G, Epari S, Rekhi B, Ramadwar M, Desai S. BRAF V600E Mutations and Beyond: A Molecular Perspective of Melanoma from a Tertiary Cancer Referral Center of India. South Asian J Cancer 2023; 12:359-370. [PMID: 38130275 PMCID: PMC10733062 DOI: 10.1055/s-0043-1760759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
Vaibhavi VengurlekarObjectives Malignant melanoma demonstrates frequently occurring mutations of genes in the serine/threonine kinase pathway, namely BRAF, NRAS, and neurofibromin 1. There is rare documentation of a detailed analysis of these mutations in cases of melanoma among Indian patients. We present molecular features in cases of malignant melanoma, diagnosed at a tertiary cancer referral center in India, over a period of 8 years (2011-2018). Materials and Methods This study was performed on formalin fixed paraffin embedded tissues of 88 histologically confirmed cases of malignant melanoma. BRAF gene alterations were studied by both Sanger sequencing and real-time polymerase chain reaction techniques ( n = 74). Molecular testing for BRAF and NRAS gene alterations was accomplished in 74/88 cases (80%). Molecular test results were correlated with clinicopathological features using IBM SPSS Statistical software 25.0. Results The age ranged from 13 to 79 years (median = 57), with a M:F ratio of 1.4:1. BRAF mutations were observed in 12/74 (16.21%) patients, including V600E ( n = 7), A594T ( n = 1), T599 = ( n = 2), V600K ( n = 1), and Q612P ( n = 1), while NRAS mutations were observed in 6/38 (15.7%) patients. Among various subtypes, nodular melanoma was the most frequent subtype (33%) among cutaneous malignant melanomas. Among non-cutaneous melanomas, mucosal melanomas were observed in 37.5% of cases. Conclusion This constitutes one of the few reports on comprehensive analysis of molecular alterations underlying melanomas in Indian patients. A larger sample size, with more extensive molecular markers, would yield additional information on the disease manifestation.
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Affiliation(s)
- Vaibhavi Vengurlekar
- Department of Pathology, Division of Molecular Pathology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Omshree Shetty
- Department of Pathology, Division of Molecular Pathology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Mamta Gurav
- Department of Pathology, Division of Molecular Pathology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Prachi Bapat
- Department of Pathology, Division of Molecular Pathology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Nupur Karnik
- Department of Pathology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Gauri Wagh
- Department of Pathology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Sridhar Epari
- Department of Pathology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Bharat Rekhi
- Department of Pathology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Mukta Ramadwar
- Department of Pathology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, Maharashtra, India
| | - Sangeeta Desai
- Department of Pathology, Tata Memorial Centre, Homi Bhabha National Institute, Mumbai, Maharashtra, India
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Bajpai J, Abraham G, Saklani AP, Agarwal A, Das S, Chatterjee A, Kapoor A, Eaga P, Mondal PK, Chandrasekharan A, Bhargava PG, Srinivas S, Turkar S, Rekhi B, Khanna N, Janu AK, Bal M, Ostwal VS, Ramaswamy A, Rohila J, Desouza AL, Guha A, Kumar R, Menon NS, Rath S, Patil VM, Noronha VM, Joshi AP, Laskar S, Rangarajan V, Prabhash K, Gupta S, Banavali S. Demographics, Pattern of Care, and Outcome Analysis of Malignant Melanomas - Experience From a Tertiary Cancer Centre in India. Front Oncol 2021; 11:710585. [PMID: 34568037 PMCID: PMC8456006 DOI: 10.3389/fonc.2021.710585] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 07/30/2021] [Indexed: 12/19/2022] Open
Abstract
Background Treatment of malignant melanoma has undergone a paradigm shift with the advent of immune checkpoint inhibitors (ICI) and targeted therapies. However, access to ICI is limited in low-middle income countries (LMICs). Patients and Methods Histologically confirmed malignant melanoma cases registered from 2013 to 2019 were analysed for pattern of care, safety, and efficacy of systemic therapies (ST). Results There were 659 patients with a median age of 53 (range 44–63) years; 58.9% were males; 55.2% were mucosal melanomas. Most common primary sites were extremities (36.6%) and anorectum (31.4%). Nearly 10.8% of the metastatic cohort were BRAF mutated. Among 368 non-metastatic patients (172 prior treated, 185 de novo, and 11 unresectable), with a median follow-up of 26 months (0–83 months), median EFS and OS were 29.5 (95% CI: 22–40) and 33.3 (95% CI: 29.5–41.2) months, respectively. In the metastatic cohort, with a median follow up of 24 (0–85) months, the median EFS for BSC was 3.1 (95% CI 1.9–4.8) months versus 3.98 (95% CI 3.2–4.7) months with any ST (HR: 0.69, 95% CI: 0.52–0.92; P = 0.011). The median OS was 3.9 (95% CI 3.3–6.4) months for BSC alone versus 12.0 (95% CI 10.5–15.1) months in any ST (HR: 0.38, 95% CI: 0.28–0.50; P < 0.001). The disease control rate was 51.55%. Commonest grade 3–4 toxicity was anemia with chemotherapy (9.5%) and ICI (8.8%). In multivariate analysis, any ST received had a better prognostic impact in the metastatic cohort. Conclusions Large real-world data reflects the treatment patterns adopted in LMIC for melanomas and poor access to expensive, standard of care therapies. Other systemic therapies provide meaningful clinical benefit and are worth exploring especially when the standard therapies are challenging to administer.
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Affiliation(s)
- Jyoti Bajpai
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - George Abraham
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Avanish P Saklani
- Department of Surgical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Anshul Agarwal
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Sashanka Das
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Ambarish Chatterjee
- Department of Surgical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Akhil Kapoor
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Prathyusha Eaga
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Pradip Kumar Mondal
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Arun Chandrasekharan
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | | | - Sujay Srinivas
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Siddharth Turkar
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Bharat Rekhi
- Department of Surgical Pathology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Nehal Khanna
- Department of Radiation Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Amit Kumar Janu
- Department of Radiodiagnosis, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Munita Bal
- Department of Surgical Pathology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Vikas Sureshchand Ostwal
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Anant Ramaswamy
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Jitender Rohila
- Department of Surgical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Ashwin L Desouza
- Department of Surgical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Amrita Guha
- Department of Radiodiagnosis, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Rajiv Kumar
- Department of Surgical Pathology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Nandini Sharrel Menon
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Sushmita Rath
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Vijay Maruti Patil
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Vanita Maria Noronha
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Amit Prakashchandra Joshi
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Siddhartha Laskar
- Department of Radiation Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Venkatesh Rangarajan
- Department of Nuclear Medicine, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Kumar Prabhash
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Sudeep Gupta
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
| | - Shripad Banavali
- Department of Medical Oncology, Tata Memorial Hospital, Homibhabha National Institute, Mumbai, India
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Castañeda-Reyes ED, Perea-Flores MDJ, Davila-Ortiz G, Lee Y, Gonzalez de Mejia E. Development, Characterization and Use of Liposomes as Amphipathic Transporters of Bioactive Compounds for Melanoma Treatment and Reduction of Skin Inflammation: A Review. Int J Nanomedicine 2020; 15:7627-7650. [PMID: 33116492 PMCID: PMC7549499 DOI: 10.2147/ijn.s263516] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 08/31/2020] [Indexed: 12/21/2022] Open
Abstract
The skin is the largest organ in the human body, providing a barrier to the external environment. It is composed of three layers: epidermis, dermis and hypodermis. The most external epidermis is exposed to stress factors that may lead to skin conditions such as photo-aging and skin cancer. Some treatments for skin disease utilize the incorporation of drugs or bioactive compounds into nanocarriers known as liposomes. Liposomes are membranes whose sizes range from nano to micrometers and are composed mostly of phospholipids and cholesterol, forming similar structures to cell membranes. Thus, skin treatments with liposomes have lower toxicity in comparison to traditional treatment routes such as parenteral and oral. Furthermore, addition of edge activators to the liposomes decreases the rigidity of the bilayer structure making it deformable, thereby improving skin permeability. Liposomes are composed of an aqueous core and a lipidic bilayer, which confers their amphiphilic property. Thus, they can carry hydrophobic and hydrophilic compounds, even simultaneously. Current applications of these nanocarriers are mainly in the cosmetic and pharmaceutic industries. Nevertheless, new research has revealed promising results regarding the effectiveness of liposomes for transporting bioactive compounds through the skin. Liposomes have been well studied; however, additional research is needed on the efficacy of liposomes loaded with bioactive peptides for skin delivery. The objective of this review is to provide an up-to-date description of existing techniques for the development of liposomes and their use as transporters of bioactive compounds in skin conditions such as melanoma and skin inflammation. Furthermore, to gain an understanding of the behavior of liposomes during the process of skin delivery of bioactive compounds into skin cells.
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Affiliation(s)
- Erick Damian Castañeda-Reyes
- Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional (IPN), Unidad Profesional Adolfo Lopez Mateos, Ciudad De México, 07738, México.,Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Champaign, IL, USA
| | - Maria de Jesús Perea-Flores
- Centro de Nanociencias y Micro y Nanotecnologías, Instituto Politécnico Nacional (IPN), Unidad Profesional Adolfo López Mateos, Ciudad De México 07738, México
| | - Gloria Davila-Ortiz
- Departamento de Ingeniería Bioquímica, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional (IPN), Unidad Profesional Adolfo Lopez Mateos, Ciudad De México, 07738, México
| | - Youngsoo Lee
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Champaign, IL, USA
| | - Elvira Gonzalez de Mejia
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Champaign, IL, USA
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Tas F, Erturk K. BRAF V600E mutation as a prognostic factor in cutaneous melanoma patients. Dermatol Ther 2020; 33:e13270. [PMID: 32061008 DOI: 10.1111/dth.13270] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 02/07/2020] [Accepted: 02/11/2020] [Indexed: 12/21/2022]
Abstract
The prognostic significance of BRAF mutations in the natural course of melanoma is controversial. The aim of study was to assess the prognostic significance of BRAF V600E mutation in cutaneous melanoma patients. A total of 151 melanomas were included in the study. BRAF V600E mutation was detected using the real-time PCR. BRAF V600E mutation rate was 51%. BRAF mutation rate was higher for young patients (61.4%) and upper limbs (63.2%), trunk (59.3%) and head and neck (59.2%) were the most frequently afflicted sites in BRAF-mutant patients, whereas lower limbs were mostly affected in BRAF-wild patients (77.8%). Likewise, acral melanomas rarely harbored BRAF mutation (17.1%). The disease-free survivals regarding the entire and Stage III cohorts were longer in the BRAF-mutant group than in the BRAF-wild group (p = .006 and p = .004, respectively), whereas Stage I-II patients had no survival differences between BRAF statuses (p = .2). Likewise, BRAF-mutant patients had better overall survival (OS) time compared to BRAF-wild patients in all stages (p = .01), in Stage III (p = .01), and in Stage IV patients (p = .001). However, no differences between BRAF statuses were observed in Stage I-II melanomas (p = .3). In conclusion, BRAF V600E-mutant melanomas show favorable prognostic impact on both disease-free and OSs in all staged melanomas except local disease.
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Affiliation(s)
- Faruk Tas
- Department of Medical Oncology, Institute of Oncology, Istanbul University, Istanbul, Turkey
| | - Kayhan Erturk
- Department of Medical Oncology, Institute of Oncology, Istanbul University, Istanbul, Turkey
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