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Kumar NAN, Palod A, Usman N, Ahmed S. Periarterial and Sub-adventitial Divestment Along with Triangle Operation and RAMPS for Pancreatic Body Cancer. Ann Surg Oncol 2024:10.1245/s10434-024-15303-y. [PMID: 38714624 DOI: 10.1245/s10434-024-15303-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 04/02/2024] [Indexed: 05/10/2024]
Abstract
BACKGROUND Locally advanced cancers of the pancreatic body can abut or involve the celiac axis, hepatic artery, or superior mesenteric artery. Recent evidence suggests that these tumors are amenable to surgery after neoadjuvant chemotherapy (Hackert et al., Locally advanced pancreatic cancer: neoadjuvant therapy with FOLFIRINOX results in resectability in 60 % of the patients. Ann Surg 264:457-463, 2016; Rangelova et al., Surgery improves survival after neoadjuvant therapy for borderline and locally advanced pancreatic cancer: a single-institution experience. Ann Surg 273:579-86, 2021). An arterial divestment technique can be used for these cancers to get an R0 clearance, thereby avoiding morbid arterial resections (Miao et al., Arterial divestment instead of resection for locally advanced pancreatic cancer (LAPC). Pancreatology 16:S59, 2016; Habib et al., Periadventitial dissection of the superior mesenteric artery for locally advanced pancreatic cancer: surgical planning with the "halo sign" and "string sign." Surgery 169(5):1026-1031, 2021; Diener et al., Periarterial divestment in pancreatic cancer surgery. Surgery 169(5):1026-31, 2020). Two techniques are described for arterial divestment. In the periarterial divestment technique, the plane of the dissection is between the tumor and the adventitia (Habib et al., Periadventitial dissection of the superior mesenteric artery for locally advanced pancreatic cancer: surgical planning with the "halo sign" and "string sign." Surgery 169(5):1026-1031, 2021; Diener et al., Periarterial divestment in pancreatic cancer surgery. Surgery 169(5):1026-31, 2020). In sub-adventitial dissection, the plane of dissection is between the tunica adventitia and the external elastic lamina (Gao et al., Sub-adventitial divestment technique for resecting artery-involved pancreatic cancer: a retrospective cohort study. Langenbecks Arch Surg 406:691-701, 2021). The TRIANGLE operation also is one of the surgical techniques to achieve R0 resection in locally advanced pancreatic cancer (Hackert et al., The TRIANGLE operation: radical surgery after neoadjuvant treatment for advanced pancreatic cancer: a single-arm observational study. HPB Oxford 19:1001-1007, 2017). This multimedia article aims to demonstrate peri-arterial and sub-adventitial divestment techniques as well as the TRIANGLE operation for a locally advanced cancer of the body of the pancreas. The video also highlights the technique of posterior radical antegrade modular pancreato-splenectomy (RAMPS) together with lymph node clearance. PATIENT AND METHODS A 57-year-old women was detected to have pancreatic body adenocarcinoma with tumor contact of the artery and superior mesenteric artery. After neoadjuvant chemotherapy, she was planned to undergo surgical resection. RESULTS The surgical technique consisted of peri-arterial and sub-adventitial divestment, the TRIANGLE operation and RAMPS (Fig. 1). The procedure was performed within 240 min and involved blood loss of 250 mL. After the procedure, pancreatic leak (POPF-B), chyle leak and diarrhea developed, which were managed conservatively. The final histopathology showed residual, viable, moderately differentiated adenocarcinoma (ypT2N1M0) with all resection margins free. CONCLUSION The surgical technique consisting of peri-arterial and sub-adventitial divestment, the TRIANGLE operation and RAMPS helps in R0 resection of locally advanced pancreatic body cancer without any compromise in oncologic outcomes and offers an alternative surgical approach to morbid arterial resection.
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Affiliation(s)
- Naveena A N Kumar
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, India.
| | - Akhil Palod
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, India
| | - Nawaz Usman
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, India
| | - Sameer Ahmed
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, India
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Kumar NAN, Palod A, Ahmed S. Laparoscopic Intersphincteric Resection for Low Rectal Cancer. Dis Colon Rectum 2024; 67:e201. [PMID: 38064203 DOI: 10.1097/dcr.0000000000002900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Affiliation(s)
- Naveena A N Kumar
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka, India
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Usman N, Dikhit PS, Kumar NAN, Shetty PS, Rajan K, Vittamsetti VNR, Dinker D, Jose A. Ipsilateral Cervicodeltopectoral Flap: A Forgotten Technique, Revival in the Era of Microvascular Reconstruction. J Maxillofac Oral Surg 2024; 23:38-43. [PMID: 38312978 PMCID: PMC10831001 DOI: 10.1007/s12663-022-01757-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 06/12/2022] [Indexed: 11/26/2022] Open
Abstract
Oral cavity cancer is one of the most common cancers in India responsible for significant morbidity and mortality in Indian subcontinent. Majority of cases present in advanced stages which requires extensive reconstruction following tumor resection. Microvascular free flap reconstruction is now considered standard of care for reconstruction for major head and neck skin-mucosal defects but, many factors still act as hindrance like patient's comorbidities, long operating hours for microvascular reconstruction, logistic and financial issues from patient's side. In such situation it is better to have a backup plan for reconstruction of major head and neck defects using pedicled flaps. Pectoralis major myocutaneous (PMMC) flap has been the workhorse flap for head and neck reconstruction since its introduction four decades ago. But relying too much on PMMC flap for major skin-mucosal defects especially in female patients is associated with complications and risk for flap failure leading to catastrophic and significant patient morbidities. Our study involves the use of two flaps for head and neck reconstuction involving skin-mucosal defects i.e PMMC flap for mucosal defect and cervicodeltopectoral (CDP) flap for skin defect. As of now there has been no retrospective or prospective study done which has given a conclusive statement regarding use of these two flaps simultaneously for head and neck reconstruction to the best of our knowledge. In our experience from the present study, CDP flap offers an excellent alternative for extensive head and neck reconstruction and can be readily included in the surgeon's armamentarium with proper planning and meticulous handling.
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Affiliation(s)
- Nawaz Usman
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576401 India
| | - Punit Singh Dikhit
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576401 India
| | - Naveena A. N. Kumar
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576401 India
| | - Preethi S. Shetty
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576401 India
| | - Keshava Rajan
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576401 India
| | - V. N. R. Vittamsetti
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576401 India
| | - Diksha Dinker
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576401 India
| | - Anmi Jose
- Department of Pharmacy Practice, Manipal College of Pharmaceutical Sciences(MCOPS), Manipal Academy of Higher Education(MAHE), Manipal, 576104 India
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Kumar NAN, Usman N, Palod A, Nithesh JB. How to do it: popliteal lymph node dissection. ANZ J Surg 2023; 93:2991-2992. [PMID: 37784250 DOI: 10.1111/ans.18723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 09/20/2023] [Accepted: 09/21/2023] [Indexed: 10/04/2023]
Abstract
Popliteal lymph node metastasis is not very frequent. However, in case of lymph node metastasis in the popliteal fossa, template lymph node dissection needs to be performed. In view of the rarity of this procedure, we aim to describe the stepwise technique of popliteal lymph node dissection.
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Affiliation(s)
- Naveena A N Kumar
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Nawaz Usman
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Akhil Palod
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - J B Nithesh
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
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Parida P, Lewis S, Sharan K, Kamal MV, Kumar NAN, Godkhindi VM, Varambally S, Rangnekar VM, Rao M, Damerla RR. Increased Gene Expression of C1orf74 Is Associated with Poor Prognosis in Cervical Cancer. Cells 2023; 12:2530. [PMID: 37947608 PMCID: PMC10649411 DOI: 10.3390/cells12212530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 10/23/2023] [Accepted: 10/24/2023] [Indexed: 11/12/2023] Open
Abstract
C1orf74, also known as URCL4, has been reported to have higher expression and be associated with poor prognosis in lung adenocarcinoma patients, and its role in regulation of the EGFR/AKT/mTORC1 pathway has been recently elucidated. In the current study, we used publicly available data and experimental validation of C1orf74 gene expression and its association with prognosis in cervical cancer patients. qRT-PCR was performed using RNA from cervical cancer cell lines and twenty-five cervical cancer patients. Data from TNMplot revealed that mRNA expression of the C1orf74 gene in primary tumor tissues, as well as metastatic tissues from cervical cancer patients, was significantly higher compared to normal cervical tissues. HPV-positive tumors had higher expression of this gene compared to HPV-negative tumors. qPCR analysis also demonstrated higher expression of C1orf74 in HPV-positive cervical cancer cell lines and most cervical cancer patients. The promoter methylation levels of the C1orf74 gene in cervical cancer tissues were lower compared to normal cervical tissues (p < 0.05). Collectively, our study indicates that higher expression of the C1orf74 gene caused by hypomethylation of its promoter is associated with poor overall survival in cervical cancer patients. Thus, C1orf74 is a novel prognostic marker in cervical cancer.
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Affiliation(s)
- Preetiparna Parida
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal 576104, Karnataka, India;
| | - Shirley Lewis
- Department of Radiotherapy and Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal 576104, Karnataka, India; (S.L.); (K.S.)
| | - Krishna Sharan
- Department of Radiotherapy and Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal 576104, Karnataka, India; (S.L.); (K.S.)
| | - Mehta Vedant Kamal
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal 576104, Karnataka, India; (M.V.K.); (N.A.N.K.)
| | - Naveena A. N. Kumar
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal 576104, Karnataka, India; (M.V.K.); (N.A.N.K.)
| | - Vishwapriya M. Godkhindi
- Department of Pathology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal 576104, Karnataka, India;
| | - Sooryanarayana Varambally
- Cellular and Molecular Pathology, Department of Pathology, University of Alabama at Birmingham, Birmingham, AL 35294, USA;
- O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| | - Vivek M. Rangnekar
- Department of Radiation Medicine, College of Medicine, University of Kentucky, Lexington, KY 40536, USA;
- Markey Cancer Center, University of Kentucky, Lexington, KY 40536, USA
| | - Mahadev Rao
- Department of Pharmacy Practice, Center for Translational Research, Manipal College of Pharmaceutical Sciences, Manipal, Manipal Academy of Higher Education (MAHE), Manipal 576104, Karnataka, India
| | - Rama Rao Damerla
- Department of Medical Genetics, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal 576104, Karnataka, India;
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Ahmed S, Kumar NAN, Palod A, Bishnoi AK. Parietal Peritoneum Interposition Tube Graft as an Autologous Substitute for the Reconstruction of Inferior Vena cava Following Resection of Retroperitoneal Sarcoma. Indian J Surg Oncol 2023; 14:727-731. [PMID: 37900651 PMCID: PMC10611635 DOI: 10.1007/s13193-023-01768-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 05/04/2023] [Indexed: 10/31/2023] Open
Abstract
Complete resection of large retroperitoneal tumors often requires vascular resection and reconstruction, which is frequently performed using prosthetic grafts. We report our experience with inferior vena cava reconstruction utilizing a large peritoneal interposition tube graft performed during en bloc resection of retroperitoneal sarcoma and multiorgan resection. This study aimed to increase the awareness of surgical oncologists about the venous reconstruction technique using a large autologous peritoneal graft. An elderly male presented to our cancer center with a history of persistent abdominal pain. The computed tomography (CT) scan reported a large retroperitoneal mass involving the right kidney and the inferior vena cava (IVC). En bloc tumor resection with right nephrectomy and resection of the IVC extending from just above the bifurcation up to the origin of the renal veins was done. IVC reconstruction was performed using autologous parietal peritoneum tube graft. Harvesting the peritoneum and fashioning a large peritoneal tube graft was challenging. Post-operatively, the patient recovered without any complications and was discharged on oral anticoagulants. The CT scan during the follow-up visit at 6 months revealed that the IVC graft was patent with a good flow. Autologous peritoneal grafts are a safe, valid, and readily available option for venous reconstruction.
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Affiliation(s)
- Sameer Ahmed
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576104 India
| | - Naveena A. N. Kumar
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576104 India
| | - Akhil Palod
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576104 India
| | - Arvind Kumar Bishnoi
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576104 India
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Dinker D, Rajan K, Kumar NAN, Godhkini V. Recurrent Giant Myofibroblastic Sarcoma of Neck in a Teenager: Overcoming Treatment Challenges. Indian J Otolaryngol Head Neck Surg 2023:1-5. [PMID: 37362124 PMCID: PMC10163570 DOI: 10.1007/s12070-023-03752-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 03/30/2023] [Indexed: 06/28/2023] Open
Abstract
Sarcomas are rare tumors arising from a variety of mesenchymal tissues which are even rarer in head and neck region amounting 1% only of the 5% of sarcomas. About 80% of head and neck sarcomas originate in soft tissue while the remaining 20% arise from bone (Cormier and Pollock in J Clin 54:94-109, 2004). One among the commonly presenting variants of sarcomas in head and neck that our patient was diagnosed with is Low grade myofibroblastic sarcoma (LGMS). These even though uncommon have a predilection for head and neck region particularly the tongue (Mentzel et al. in Am J Surg Pathol 22:1228-38, 1998; Cai et al. in Virchows Arch 463:827-36, 2013; Meng et al. in Chin Med J 120:363-9, 2007; Demarosi et al. in Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 108:248-54, 2009). LGMS was reclassified as a distinct entity by the WHO classification of soft tissue tumors in 2002 (Qiu et al. in Oncol Lett 9:619-25, 2015). Oncological resection is the mainstay of treatment. In case of bulky tumor, resection and reconstruction would be challenging. We report a recurrent LGMS of 15-year-old girl who presented with a ginormous soft tissue swelling in her left neck region which made her day-to-day activities strenuous and made her non ambulatory and the line of treatment executed in order to get her back on feet, healthy & free of the debilitating tumor.
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Affiliation(s)
- Diksha Dinker
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education(MAHE), Manipal, Karnataka 576401 India
| | - Keshava Rajan
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education(MAHE), Manipal, Karnataka 576401 India
| | - Naveena A. N. Kumar
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education(MAHE), Manipal, Karnataka 576401 India
| | - Vishwapriyan Godhkini
- Department of General Pathology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal, Karnataka 576104 India
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Usman N, Shetty PS, Dikhit PS, Dinker D, Kumar NAN, Palod A, Prakashini K, Sankaran PP, Somu G. To CT or not to CT: Questioning the Cost-Effectiveness of CT Thorax in Head and Neck Cancers. Indian J Surg Oncol 2023; 14:28-33. [PMID: 36891447 PMCID: PMC9986160 DOI: 10.1007/s13193-022-01608-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 07/22/2022] [Indexed: 10/16/2022] Open
Abstract
Computed tomography (CT) scan has been an integral part of the diagnostic workup for patients with head and neck squamous cell carcinoma. Our study was designed to find out the incidence of distant metastasis and second primary tumor and to correlate the cost-effectiveness of CT thorax in detecting the same. This study was conducted among 326 cancer patients who visited our center with curative intent in the year 2021, with lesions in various head and neck subsites. Data were collected based on their pathological TNM staging and the presence of distant metastasis as evident on their CT thorax imaging with various variables related to the disease. Incremental cost-effectiveness ratio (ICER) was calculated for detecting a single metastatic deposit and second primary tumor in terms of Indian currency and was correlated to each subsite and stage of disease at presentation. Out of these 326 patients, 281 patients were included in our study after considering the inclusion criteria, and among these 281 patients, 235 of them underwent CT thorax for metastatic workup. No patient was found to have a second primary. Metastases were found in 12 patients. The site of primary lesion and clinical tumor (cT) staging were found to be significantly influencing the incidence of metastasis on CT thorax. ICER was least for larynx, pharynx, and paranasal sinuses and was highest for oral cavity primaries and early-stage disease. As per our observations and results of ICER, CT thorax is indeed a valuable modality but should be used judiciously when it comes to initial diagnostic workup.
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Affiliation(s)
- Nawaz Usman
- Department of Surgical Oncology, Manipal Academy of Higher Education (MAHE), Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal, Karnataka 576401 India
| | - Preethi S Shetty
- Department of Surgical Oncology, Manipal Academy of Higher Education (MAHE), Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal, Karnataka 576401 India
| | - Punit Singh Dikhit
- Department of Surgical Oncology, Manipal Academy of Higher Education (MAHE), Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal, Karnataka 576401 India
| | - Diksha Dinker
- Department of Surgical Oncology, Manipal Academy of Higher Education (MAHE), Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal, Karnataka 576401 India
| | - Naveena A N Kumar
- Department of Surgical Oncology, Manipal Academy of Higher Education (MAHE), Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal, Karnataka 576401 India
| | - Akhil Palod
- Department of Surgical Oncology, Manipal Academy of Higher Education (MAHE), Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal, Karnataka 576401 India
| | - Koteshwara Prakashini
- Department of Radiodiagnosis and Imaging, Manipal Academy of Higher Education (MAHE), Kasturba Medical College Manipal, Manipal, Karnataka 576104 India
| | - Priya P Sankaran
- Department of Radiodiagnosis and Imaging, Manipal Academy of Higher Education (MAHE), Kasturba Medical College Manipal, Manipal, Karnataka 576104 India
| | - G Somu
- Department of Hospital Administration, Kasturba Medical College Manipal, Manipal, Karnataka 576104 India
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Kumar NAN, Palod A, Usman N, S Shetty P, Jb N, Hv Crithic V. Laparoscopic left colectomy with complete mesocolic excision for splenic flexure tumour with intussusception-a video vignette. Colorectal Dis 2023; 25:522. [PMID: 36219513 DOI: 10.1111/codi.16363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 08/10/2022] [Indexed: 02/08/2023]
Affiliation(s)
- Naveena A N Kumar
- Department of Surgical Oncology, Kasturba Medical College, Academy of Higher Education (MAHE), Manipal Comprehensive Cancer Care Centre, Manipal, Karnataka, India
| | - Akhil Palod
- Department of Surgical Oncology, Kasturba Medical College, Academy of Higher Education (MAHE), Manipal Comprehensive Cancer Care Centre, Manipal, Karnataka, India
| | - Nawaz Usman
- Department of Surgical Oncology, Kasturba Medical College, Academy of Higher Education (MAHE), Manipal Comprehensive Cancer Care Centre, Manipal, Karnataka, India
| | - Preethi S Shetty
- Department of Surgical Oncology, Kasturba Medical College, Academy of Higher Education (MAHE), Manipal Comprehensive Cancer Care Centre, Manipal, Karnataka, India
| | - Nithesh Jb
- Department of Surgical Oncology, Kasturba Medical College, Academy of Higher Education (MAHE), Manipal Comprehensive Cancer Care Centre, Manipal, Karnataka, India
| | - Vilas Hv Crithic
- Department of Surgical Oncology, Kasturba Medical College, Academy of Higher Education (MAHE), Manipal Comprehensive Cancer Care Centre, Manipal, Karnataka, India
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Kamal MV, Rao M, Damerla RR, Pai A, Sharan K, Palod A, Shetty PS, Usman N, Kumar NAN. A Mechanistic Review of Methotrexate and Celecoxib as a Potential Metronomic Chemotherapy for Oral Squamous Cell Carcinoma. Cancer Invest 2023; 41:144-154. [PMID: 36269850 DOI: 10.1080/07357907.2022.2139840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The combination of low-dose methotrexate and celecoxib as metronomic chemotherapy (MCT) is a novel therapy, believed to act by modulating the immune response, inhibiting angiogenesis and its cytotoxic action, though the exact mechanism of action is unclear. Clinically, MCT was found to be very effective in delaying tumor progression in patients with head and neck squamous cell carcinoma in both curative and palliative settings. This review was aimed to give a brief insight into the mechanism of action and potential molecular alterations of MCT in the treatment of oral cancers taking into consideration the various in vivo and in vitro studies.
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Affiliation(s)
- Mehta Vedant Kamal
- Department of Surgical Oncology, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Mahadev Rao
- Department of Pharmacy Practice, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Rama Rao Damerla
- Department of Medical Genetics, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Ananth Pai
- Department of Medical Oncology, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Krishan Sharan
- Department of Radiotherapy and Oncology, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Akhil Palod
- Department of Surgical Oncology, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Preethi S Shetty
- Department of Surgical Oncology, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Nawaz Usman
- Department of Surgical Oncology, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Naveena A N Kumar
- Department of Surgical Oncology, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, India
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Kumar NAN, Palod A, Usman N, Shetty PS, Narasimha VRV, Ahamed S. Laparoscopic extended colectomy with complete mesocolic excision for right sided cT4b colon cancer-A video vignette. Colorectal Dis 2023; 25:343-344. [PMID: 36088643 DOI: 10.1111/codi.16330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Accepted: 09/01/2022] [Indexed: 02/08/2023]
Affiliation(s)
- Naveena A N Kumar
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of higher Education (MAHE), Manipal, Karnataka, India
| | - Akhil Palod
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of higher Education (MAHE), Manipal, Karnataka, India
| | - Nawaz Usman
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of higher Education (MAHE), Manipal, Karnataka, India
| | - Preethi S Shetty
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of higher Education (MAHE), Manipal, Karnataka, India
| | - Venkata Rao V Narasimha
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of higher Education (MAHE), Manipal, Karnataka, India
| | - Sameer Ahamed
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of higher Education (MAHE), Manipal, Karnataka, India
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Padam KSR, Morgan R, Hunter K, Chakrabarty S, Kumar NAN, Radhakrishnan R. Identification of HOX signatures contributing to oral cancer phenotype. Sci Rep 2022; 12:10123. [PMID: 35710803 PMCID: PMC9203786 DOI: 10.1038/s41598-022-14412-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 06/07/2022] [Indexed: 11/09/2022] Open
Abstract
The role of evolutionarily conserved homeobox-containing HOX genes as transcriptional regulators in the developmental specification of organisms is well known. The contribution of HOX genes involvement in oral cancer phenotype has yet to be fully ascertained. TCGA-HNSC HTSeq-counts and clinical data were retrieved from the GDC portal for oral cavity neoplasms. GEO datasets (GSE72627, GSE30784, GSE37991) were accessed and analyzed using GEO2R. Differential HOX gene expression was profiled using the DESeq2 R package with a log2 fold change cut-off (- 1 and + 1) and Benjamini-Hochberg p-adjusted value at ≤ 0.01. Gene set over-representation analysis and semantic analysis associated with the disease ontology was performed using the ClusterProfiler R package, and pathway over-representation analysis was performed using IMPaLa. HOX protein interaction network was constructed using the Pathfind R package. HOX phenotype associations were performed using Mammalian Phenotype Ontology, Human Phenotype Ontology, PhenGenI associations, Jensen tissues, and OMIM entries. Drug connectivity mapping was carried out with Dr. Insight R package. HOXA2 was upregulated in oral dysplasia but silenced during tumor progression. Loss of HOXB2 expression was consistent in the potentially malignant oral lesions as well as in the primary tumor. HOXA7, HOXA10, HOXB7, HOXC6, HOXC10, HOXD10, and HOXD11 were consistently upregulated from premalignancy to malignancy and were notably associated with risk factors. Overrepresentation analysis suggested HOXA10 was involved in the transcriptional misregulation contributing to the oral cancer phenotype. HOX genes subnetwork analysis showed crucial interactions with cell cycle regulators, growth responsive elements, and proto-oncogenes. Phenotype associations specific to the oral region involving HOX genes provide intrinsic cues to tumor development. The 5' HOX genes were aberrantly upregulated during oral carcinogenesis reflecting their posterior prevalence.
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Affiliation(s)
- Kanaka Sai Ram Padam
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Richard Morgan
- School of Biomedical Sciences, University of West London, London, W5 5RF, UK
| | - Keith Hunter
- Academic Unit of Oral and Maxillofacial Medicine and Pathology, School of Clinical Dentistry, University of Sheffield, Sheffield, S10 2TA, UK
| | - Sanjiban Chakrabarty
- Department of Cell and Molecular Biology, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Naveena A N Kumar
- Department of Surgical Oncology, Kasturba Medical College and Hospital, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India
| | - Raghu Radhakrishnan
- Department of Oral Pathology, Manipal College of Dental Sciences, Manipal, Manipal Academy of Higher Education, Manipal, 576104, India.
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Kumar NAN, Usman N, Rajan K, S Shetty P, Crithic VHV, Rao V Narasimha V. Laparoscopic total mesorectal excision for low rectal cancer - A step by step approach - A video vignette. Colorectal Dis 2022; 24:141. [PMID: 34564934 DOI: 10.1111/codi.15927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 02/08/2023]
Affiliation(s)
- Naveena A N Kumar
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Center, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Nawaz Usman
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Center, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Keshava Rajan
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Center, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Preethi S Shetty
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Center, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Vilas H V Crithic
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Center, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - Venkata Rao V Narasimha
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Center, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, India
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Kumar NAN, Dikhit PS, Usman N, Rajan K, Shetty PS. The contralateral based Cervico-pectoral rotation flap for large neck defects. Oral Maxillofac Surg 2021; 26:581-586. [PMID: 34802098 DOI: 10.1007/s10006-021-01022-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 11/14/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE We here describe our technique of contralateral based cervico-pectoral (CCP) flap for the reconstruction of large neck defect following resection of primary tumour or recurrence particularly due to the lymph node mass. METHODS The study included the patients who underwent major head and neck surgical ablative procedures followed by CCP flap reconstruction between July 2020 and November 2020. Patients were kept on rigorous regular follow-up to evaluate for flap related complications like flap necrosis, flap dehiscence and oro-cutaneous fistula. Among the 5 patients included and presented in the series, 2 patients were salvage cases post adjuvant treatment. RESULTS Five patients who have undergone head and neck reconstruction using CCP flap were included. No major flap related complications occurred in post-operative period. CONCLUSION The CCP flap is simple to perform and reproducible and can be added to the armamentarium for the reconstruction of large upper neck defect following resection of primary tumour or recurrence involving the cervical skin in resource limited setting and in contraindication for microvascular reconstruction. Proper planning, meticulous dissection and adequate release or rotation and tension free closure would provide best outcomes.
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Affiliation(s)
- Naveena A N Kumar
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576401, India.
| | - Punit Singh Dikhit
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576401, India
| | - Nawaz Usman
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576401, India
| | - Keshava Rajan
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576401, India
| | - Preethi S Shetty
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576401, India
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Kumar NAN, Jose A, Usman N, Rajan K, Munisamy M, Shetty PS, Rao M. Signet ring cell cancer of stomach and gastro-esophageal junction: molecular alterations, stage-stratified treatment approaches, and future challenges. Langenbecks Arch Surg 2021; 407:87-98. [PMID: 34505199 PMCID: PMC8847240 DOI: 10.1007/s00423-021-02314-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 08/23/2021] [Indexed: 12/27/2022]
Abstract
Purpose There has been an increase in the incidence of signet ring cell cancer (SRCC) of the stomach and gastro-esophageal junction (GEJ). The multistage carcinogenesis involving genetic and epigenetic aberrations may have a major role in the increasing incidence of SRCC. Although there are numerous studies on the prognostic value of SRCC, they are markedly inconsistent in their results, making it impossible to draw any meaningful conclusions. We aimed to examine the available evidences on molecular alterations and stage-stratified treatment approaches in SRCC of the stomach and GEJ. Methods A systematic search was carried out in PubMed. Studies available in English related to SRCC of stomach and gastro-esophageal junction were identified and evaluated. Results This study reviewed the current evidence and provided an insight into the molecular alterations, stage-stratified treatment approaches, and future challenges in the management of SRCC of the stomach and GEJ. Specific therapeutic strategies and personalized multimodal treatment have been recommended based on the tumor characteristics of SRCC. Conclusion Multistage carcinogenesis involving genetic and epigenetic aberrations in SRCC is interlinked with stage-dependent prognosis. Specific therapeutic strategy and personalized multimodal treatment should be followed based on the tumor characteristics of SRCC. Endoscopic resection, radical surgery, and perioperative chemotherapy should be offered in carefully selected patients based on stage and prognostic stratification. Future studies in genetic and molecular analysis, histopathological classification, and options of multimodality treatment will improve the prognosis and oncological outcomes in SRCC of gastric and GEJ.
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Affiliation(s)
- Naveena A N Kumar
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Center, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Anmi Jose
- Department of Pharmacy Practice, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Nawaz Usman
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Center, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Keshava Rajan
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Center, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Murali Munisamy
- Department of Pharmacy Practice, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Preethi S Shetty
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Center, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Mahadev Rao
- Department of Pharmacy Practice, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India.
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Kazi M, Kumar NAN, Rohila J, Sukumar V, Engineer R, Ankathi S, Desouza A, Saklani A. Minimally invasive versus open pelvic exenterations for rectal cancer: a comparative analysis of perioperative and 3-year oncological outcomes. BJS Open 2021; 5:6369779. [PMID: 34518872 PMCID: PMC8438253 DOI: 10.1093/bjsopen/zrab074] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 07/13/2021] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND This study compared the surgical and oncological outcomes of open and minimally invasive pelvic exenteration. METHODS Patients who underwent pelvic exenterations for primary locally advanced rectal cancers with invasion of the urogenital organs (central and anterior disease) between August 2013 and September 2020 were reviewed retrospectively. Patients were categorized as undergoing open or minimally invasive surgery (MIS) and these groups were compared for perioperative outcomes and 3-year survival (overall, recurrence-free and local relapse-free survival). Multivariable Cox regression analysis was performed to assess the independent influence of approach of surgery and cancer features on recurrence-free survival (RFS). RESULTS Of the 158 patients who underwent pelvic exenteration, 97 (61.4 per cent) had open exenterations and 61 (38.6 per cent) patients had an MIS resection (44 patients (72 per cent) using laparoscopy and 17 (28 per cent) using robotic surgery). There were 96 (60.8 per cent) total pelvic exenterations and 62 (39.2 per cent) posterior pelvic exenterations. MIS exenterations had significantly longer operative times (MIS versus open: 640 mins versus 450 mins; P < 0.001) but reduced blood loss (MIS versus open: 900 ml versus 1600 ml; P < 0.001) and abdominal wound infections (MIS versus open: 8.2 versus 17.5 per cent; P = 0.020) without a difference in hospital stay (MIS versus open: 11 versus 12 days; P = 0.620). R0 resection rates and involvement of circumferential resection margins were similar (MIS versus open: 88.5 versus 91.8 per cent, P = 0.490 and 13.1 versus 8.2 per cent, P = 0.342 respectively). At a median follow-up of 29 months, there were no differences in 3-year overall survival (MIS versus open: 79.4 versus 60.2 per cent; P = 0.251), RFS (MIS versus open: 51.9 versus 47.8 per cent; P = 0.922) or local relapse-free survival (MIS versus open: 89.7 versus 75.2 per cent; P = 0.491. On multivariable analysis, approach to surgery had no bearing on RFS, and only known distant metastasis, aggressive histology and inadequate response to neoadjuvant radiation (pathological tumour regression grade greater than 3) predicted worse RFS. CONCLUSION MIS exenterations documented longer procedures but resulted in less blood loss and fewer wound infections compared with open surgeries. In the setting of an experienced centre, the hospital stay, R0 resection rates and oncological outcomes at 3 years were similar to those of open exenterations.
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Affiliation(s)
- M Kazi
- Department of Colorectal Surgical Oncology, Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - N A N Kumar
- Department of Surgical Oncology, Manipal Comprehensive Cancer Care Centre, Kasturba Medical College, Manipal Academy of Higher Education (MAHE), Manipal, India
| | - J Rohila
- Department of Colorectal Surgical Oncology, Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - V Sukumar
- Department of Colorectal Surgical Oncology, Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - R Engineer
- Department of Radiation Oncology, Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - S Ankathi
- Department of Radiology, Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - A Desouza
- Department of Colorectal Surgical Oncology, Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Mumbai, India
| | - A Saklani
- Department of Colorectal Surgical Oncology, Tata Memorial Centre, Homi Bhabha National Institute (HBNI), Mumbai, India
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Umamaheswaran G, Kadambari D, Muthuvel SK, Kumar NAN, Dubashi B, Aibor Dkhar S, Adithan C. Polymorphisms of T- cell leukemia 1A gene loci are not related to the development of adjuvant letrozole-induced adverse events in breast cancer. PLoS One 2021; 16:e0247989. [PMID: 33760860 PMCID: PMC7990231 DOI: 10.1371/journal.pone.0247989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Accepted: 02/17/2021] [Indexed: 01/24/2023] Open
Abstract
Letrozole, an aromatase inhibitor (AI), is the first-line adjuvant drug for treating hormone receptor-positive (HR+) breast cancer in postmenopausal women. However, harmful adverse events (AEs) and significant differences in drug response among individuals remain a significant problem in clinical application. Current evidence suggests that the observed individual variation in the treatment outcomes of AI is conferred by genetic variants. Hence, in this study, we examined the association of TCL1A gene polymorphisms with letrozole-induced AEs. The study subjects were postmenopausal HR+ breast cancer patients who were receiving adjuvant letrozole. Genomic DNA was isolated by a routine standard phenol-chloroform method. In total, 198 South Indian patients were genotyped for four single nucleotide polymorphisms (SNPs) in the TCL1A gene loci by the TaqMan allelic discrimination assay using the RT-PCR system. We used the odds ratio and 95% confidence interval to assess the genetic association. Musculoskeletal (MS) AEs and vasomotor symptoms (VMSs) are the most common side effects observed in the study cohort. Among 198 patients, 81 experienced musculoskeletal toxicity, reporting MS-AEs, 57 had VMSs, and 33 of them had both. The most frequently identified polymorphic variants in the patient series were rs11849538 (G), with an allele frequency of about 27.3%, followed by rs7158782-G (27.3%), rs7159713-G (25.8%), and rs2369049-G (22.5%). The genetic association analysis indicated no significant difference in the proportion of TCL1A gene variants between patients with and without AEs on either MS-AEs or VMSs. Though we observed high LD in all patient groups, the inferred haplotypes displayed a non-significant association with letrozole-induced specific AEs. However, the SNP functionality analysis by RegulomeDB provided a 2b rank score for rs7158782, suggesting a potential biological function. Our findings suggest that TCL1A gene polymorphisms may not play any role in the prediction of letrozole-induced AEs in South Indian HR+ breast cancer patients.
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Affiliation(s)
- Gurusamy Umamaheswaran
- Department of Pharmacology, Centre for Advanced Research in Pharmacogenomics, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
- * E-mail:
| | - Dharanipragada Kadambari
- Departments of Surgery and Medical Education, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Suresh Kumar Muthuvel
- Center for Bioinformatics, School of Life Sciences, Pondicherry University, Puducherry, India
| | - Naveena A. N. Kumar
- Departments of Surgery and Medical Education, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Biswajit Dubashi
- Department of Medical Oncology, Regional Cancer Center, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Steven Aibor Dkhar
- Department of Pharmacology, Centre for Advanced Research in Pharmacogenomics, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
| | - Chandrasekaran Adithan
- Department of Pharmacology, Centre for Advanced Research in Pharmacogenomics, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
- Department of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
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Shinde RS, Katdare N, Kumar NAN, Bhamre R, Desouza A, Ostwal V, Engineer R, Saklani A. Impact of histological subtype on treatment outcomes in locally advanced rectal adenocarcinoma treated with neoadjuvant chemoradiation. Acta Oncol 2018; 57:1721-1723. [PMID: 30264625 DOI: 10.1080/0284186x.2018.1502893] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Rajesh S. Shinde
- Colorectal Service, Department of Surgical Oncology, Tata Memorial Hospital, Parel, Mumbai, India
| | - Ninad Katdare
- Department of GI, Gyn and Peritoneal Oncology, Global Hospital, Parel, Mumbai, India
| | - Naveena A. N. Kumar
- Colorectal Service, Department of Surgical Oncology, Tata Memorial Hospital, Parel, Mumbai, India
| | - Rahul Bhamre
- Colorectal Service, Department of Surgical Oncology, Tata Memorial Hospital, Parel, Mumbai, India
| | - Ashwin Desouza
- Colorectal Service, Department of Surgical Oncology, Tata Memorial Hospital, Parel, Mumbai, India
| | - Vikas Ostwal
- Colorectal Service, Department of Surgical Oncology, Tata Memorial Hospital, Parel, Mumbai, India
| | - Reena Engineer
- Colorectal Service, Department of Surgical Oncology, Tata Memorial Hospital, Parel, Mumbai, India
| | - Avanish Saklani
- Colorectal Service, Department of Surgical Oncology, Tata Memorial Hospital, Parel, Mumbai, India
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Kumar NAN, Verma K, Shinde RS, Kammar P, Dusane R, Desouza A, Ostwal V, Patil P, Engineer R, Karimundackal G, Pramesh CS, Saklani A. Pulmonary metastasectomy of colorectal cancer origin: Evaluating process and outcomes. J Surg Oncol 2018; 118:1292-1300. [PMID: 30332511 DOI: 10.1002/jso.25273] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 09/16/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND This study was undertaken to evaluate the effect of change in policy of computed tomography (CT) scan of the thorax in staging and follow-up of colorectal cancer (CRC). Another objective was to review the outcomes following pulmonary metastasectomies (Pmets) and to determine the prognostic factors affecting outcomes. METHODS This is a retrospective analysis from a prospective cohort database of patients, who underwent Pmet for CRC origin from August 2004 to February 2016. The outcome measures were number of Pmets per year, overall survival (OS), disease-free survival (DFS), and prognostic factors affecting survival. RESULTS Of 71 patients, 38% (n = 27) underwent Pmet before 2013 and 62% ( n = 44) had surgery after 2013. The 2-year DFS after Pmet was 49.3% and estimated 5-year OS was 51.4% at a median follow-up of 28 months. There was a significant increase in number of Pmets/year ( P = 0.0015), increased detection of synchronous pulmonary metastasis (PM) ( P = 0.005), increased diagnosis of extra-pulmonary metastases (EPM) ( P = 0.005), and improved OS ( P = 0.026) after introduction of CT scan as staging tool. Site of primary tumor (colon) ( P = 0.045), primary nodal stage ( P = 0.009), and the presence of EPM ( P = 0.01) were independent important prognostic factors affecting survival. CONCLUSION The CT scan of thorax as a baseline tool for staging and follow-up in CRC increases referral for pulmonary metastasectomy. Surgery achieves excellent prognosis and long-term survival outcomes in CRC with isolated PM and carefully selected patients with solitary liver metastasis.
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Affiliation(s)
- Naveena A N Kumar
- Department of Colorectal Surgical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Kamlesh Verma
- Department of Colorectal Surgical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Rajesh S Shinde
- Department of Colorectal Surgical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Praveen Kammar
- Department of Colorectal Surgical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Rohit Dusane
- Division of Clinical Research and Statistics, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Ashwin Desouza
- Department of Colorectal Surgical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Vikas Ostwal
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Prachi Patil
- Department of Medical Gastroenterology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Reena Engineer
- Department of Radiation oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - George Karimundackal
- Department of Thoracic surgery, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - C S Pramesh
- Department of Thoracic surgery, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - Avanish Saklani
- Department of Colorectal Surgical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
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Kumar NAN, Kammar P, Saklani A. Minimal invasive approach for beyond total mesorectal excision/extended resections in rectal cancer. ACTA ACUST UNITED AC 2018. [DOI: 10.20517/2574-1225.2018.26] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Kumar NAN, Ramalingam R, Kumar HH, Ramkumar A, Vijayahari R. Ileocolon Interposition Graft Following Surgery for Gastro-esophageal Junction Adenocarcinoma. Indian J Surg Oncol 2014; 4:151-4. [PMID: 24426718 DOI: 10.1007/s13193-013-0227-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Accepted: 02/05/2013] [Indexed: 11/25/2022] Open
Affiliation(s)
- Naveena A N Kumar
- Department of Surgical Oncology, Jawaharlal Institute of Postgraduate Medical Education and Research, IIIrd Floor SS Block, Puducherry, 605006 India
| | - Rajeshwaran Ramalingam
- Department of Surgical Oncology, Jawaharlal Institute of Postgraduate Medical Education and Research, IIIrd Floor SS Block, Puducherry, 605006 India
| | - Harish H Kumar
- Department of Surgical Oncology, Jawaharlal Institute of Postgraduate Medical Education and Research, IIIrd Floor SS Block, Puducherry, 605006 India
| | - Aravind Ramkumar
- Department of Surgical Oncology, Jawaharlal Institute of Postgraduate Medical Education and Research, IIIrd Floor SS Block, Puducherry, 605006 India
| | - Ranjit Vijayahari
- Department of Surgical Gastroenterology, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
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