1
|
Muacevic A, Adler JR, Sayed Z. Perifacial Lymph Node Metastasis After Treatment of Oropharyngeal Primary Malignancy: A Case Report. Cureus 2022; 14:e31332. [PMID: 36514564 PMCID: PMC9741130 DOI: 10.7759/cureus.31332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/10/2022] [Indexed: 11/12/2022] Open
Abstract
With the rate of oropharyngeal cancer on the rise, appropriate surgical management is an increasingly important consideration. Much debate currently exists regarding the necessary extent of neck dissections when performing curative surgery for primary oropharyngeal malignancies. Here, we present the case of a 64-year-old patient with p16+ T1N1M0 squamous cell carcinoma (SCC) of the right tonsil. Approximately four years following transoral robotic surgery oropharyngectomy and ipsilateral level II-IV right selective neck dissection, metastatic SCC was discovered on fine-needle aspiration biopsy of a right perifacial lymph node (level Ib). The patient then underwent a revision right neck dissection at levels Ia and Ib. Adjuvant immunotherapy was recommended following revision neck dissection. Postoperative imaging and flexible laryngoscopy three months after surgery were not concerning for cervical lymphadenopathy or oropharyngeal lesions. Although rare, physicians must maintain a healthy level of suspicion for recurrence to level Ib in oropharyngeal primary malignancies.
Collapse
|
2
|
Coutu B, Ryan E, Christensen D, Lawrence E, Bell EB, Zhen W, Sayed Z. Positive margins matter regardless of subsequent resection findings. Oral Oncol 2022; 128:105850. [DOI: 10.1016/j.oraloncology.2022.105850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/22/2022] [Accepted: 03/30/2022] [Indexed: 11/29/2022]
|
3
|
Chaudhary S, Pothuraju R, Rachagani S, Siddiqui JA, Atri P, Mallya K, Nasser MW, Sayed Z, Lyden ER, Smith L, Gupta SD, Ralhan R, Lakshmanan I, Jones DT, Ganti AK, Macha MA, Batra SK. Dual blockade of EGFR and CDK4/6 delays head and neck squamous cell carcinoma progression by inducing metabolic rewiring. Cancer Lett 2021; 510:79-92. [PMID: 33878394 PMCID: PMC8153085 DOI: 10.1016/j.canlet.2021.04.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [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: 02/03/2021] [Revised: 04/05/2021] [Accepted: 04/07/2021] [Indexed: 12/15/2022]
Abstract
Despite preclinical success, monotherapies targeting EGFR or cyclin D1-CDK4/6 in Head and Neck squamous cell carcinoma (HNSCC) have shown a limited clinical outcome. Here, we aimed to determine the combined effect of palbociclib (CDK4/6) and afatinib (panEGFR) inhibitors as an effective strategy to target HNSCC. Using TCGA-HNSCC co-expression analysis, we found that patients with high EGFR and cyclin D1 expression showed enrichment of gene clusters associated with cell-growth, glycolysis, and epithelial to mesenchymal transition processes. Phosphorylated S6 (p-S6), a downstream effector of EGFR and cyclin D1-CDK4/6 signalling, showed a progressive increase from normal oral tissues to leukoplakia and frank malignancy, and associated with poor outcome of the patients. This increased p-S6 expression was drastically reduced after combination treatment with afatinib and palbociclib in the cell lines and mouse models, suggesting its utiliy as a prognostic marker in HNSCC. Combination treatment also reduced the cell growth and induced cell senescence via increasing reactive oxygen species with concurrent ablation of glycolytic and tricarboxylic acid cycle intermediates. Finally, our findings in sub-cutaneous and genetically engineered mouse model (K14-CreERtam;LSL-KrasG12D/+;Trp53R172H/+) studies showed a significant reduction in the tumor growth and delayed tumor progression after combination treatment. This study collectively demonstrates that dual targeting may be a critical therapeutic strategy in blocking tumor progression via inducing metabolic alteration and warrants clinical evaluation.
Collapse
Affiliation(s)
- Sanjib Chaudhary
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Ramesh Pothuraju
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Satyanarayana Rachagani
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Jawed A Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Pranita Atri
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Kavita Mallya
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Mohd W Nasser
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Zafar Sayed
- Department of Otolaryngology-Head & Neck Surgery, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Elizabeth R Lyden
- Department of Biostatistics, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Lynette Smith
- Department of Biostatistics, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Siddhartha D Gupta
- Department of Pathology, All India Institute of Medical Sciences, New Delhi, Delhi, 110029, India
| | - Ranju Ralhan
- Department of Otolaryngology-Head & Neck Surgery, Mount Sinai Hospital, Toronto, Ontario, M5G 1X5, Canada
| | - Imayavaramban Lakshmanan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Dwight T Jones
- Department of Otolaryngology-Head & Neck Surgery, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Apar Kishor Ganti
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Division of Oncology-Hematology, Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68105, USA.
| | - Muzafar A Macha
- Watson-Crick Centre for Molecular Medicine, Islamic University of Science and Technology, Awantipora, Jammu and Kashmir, 192122, India.
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
| |
Collapse
|
4
|
Chaudhary S, Dam V, Ganguly K, Sharma S, Atri P, Chirravuri-Venkata R, Cox JL, Sayed Z, Jones DT, Ganti AK, Ghersi D, Macha MA, Batra SK. Differential mutation spectrum and immune landscape in African Americans versus Whites: A possible determinant to health disparity in head and neck cancer. Cancer Lett 2020; 492:44-53. [PMID: 32738272 PMCID: PMC8432304 DOI: 10.1016/j.canlet.2020.07.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 05/21/2020] [Revised: 07/12/2020] [Accepted: 07/25/2020] [Indexed: 12/18/2022]
Abstract
African Americans (AA) with Head and Neck Squamous Cell Carcinoma (HNSCC) have a worse disease prognosis than White patients despite adjusting for socio-economic factors, suggesting the potential biological contribution. Therefore, we investigated the genomic and immunological components that drive the differential tumor biology among race. We utilized the cancer genome atlas and cancer digital archive of HNSCC patients (1992-2013) for our study. We found that AA patients with HNSCC had a higher frequency of mutation compared to Whites in the key driver genes-P53, FAT1, CASP8 and HRAS. AA tumors also exhibited lower intratumoral infiltration of effector immune cells (CD8+, γδT, resting memory CD4+ and activated memory CD4+ T cells) with shorter survival than Whites. Unsupervised hierarchical clustering of differentially expressed genes demonstrated distinct gene clusters between AA and White patients with unique signaling pathway enrichments. Connectivity map analysis identified drugs (Neratinib and Selumetinib) that target aberrant PI3K/RAS/MEK signaling and may reduce racial disparity in therapy response.
Collapse
Affiliation(s)
- Sanjib Chaudhary
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Vi Dam
- School of Interdisciplinary Informatics, University of Nebraska at Omaha, Omaha, NE, 68182, USA
| | - Koelina Ganguly
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Sunandini Sharma
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Pranita Atri
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Ramakanth Chirravuri-Venkata
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA; School of Interdisciplinary Informatics, University of Nebraska at Omaha, Omaha, NE, 68182, USA
| | - Jesse L Cox
- Department of Pathology and Microbiology, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Zafar Sayed
- Department of Otolaryngology/Head and Neck Surgery, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Dwight T Jones
- Department of Otolaryngology/Head and Neck Surgery, University of Nebraska Medical Center, Omaha, NE, 68198, USA
| | - Apar K Ganti
- Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Division of Oncology-Hematology, Department of Internal Medicine, VA-Nebraska Western Iowa Health Care System, Omaha, NE, 68198, USA
| | - Dario Ghersi
- School of Interdisciplinary Informatics, University of Nebraska at Omaha, Omaha, NE, 68182, USA.
| | - Muzafar A Macha
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Department of Otolaryngology/Head and Neck Surgery, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Department of Biotechnology, Central University of Kashmir, Jammu and Kashmir, Ganderbal, 191201, India.
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, 68198, USA; Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, 68198, USA.
| |
Collapse
|
5
|
Wilson M, Patel A, Goldner W, Baker J, Sayed Z, Fingeret AL. Postoperative thyroid hormone supplementation rates following thyroid lobectomy. Am J Surg 2020; 221:804-808. [PMID: 32682499 DOI: 10.1016/j.amjsurg.2020.07.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 02/24/2019] [Revised: 03/30/2019] [Accepted: 07/03/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Thyroid lobectomy is performed for symptomatic benign nodules, indeterminate nodules, or low-risk well differentiated thyroid cancer. We aimed to determine factors associated with thyroid stimulating hormone over goal (TH) following lobectomy. METHODS We performed a retrospective single-institution cohort study of patients undergoing thyroid lobectomy from January 2016 to December 2017. TH was defined as need for thyroid hormone in accordance with guidelines. Univariate and multivariate logistic regression analysis was performed. RESULTS One hundred patients were included and 47% developed. TH: 73% of those with cancer, 38% with benign pathology (p = 0.002). Patients with TH were more likely to have thyroiditis 26% versus 3.8% (p = 0.002); higher preoperative TSH: mean 1.88mIU/L (SD 1.17) versus 1.16mIU/L (SD 0.77) (p = 0.0002), and smaller remnant thyroid lobe adjusted for body surface area 2.99ml/m2 versus 3.72ml/m2 (p = 0.003). CONCLUSIONS After thyroid lobectomy, TH is associated with preoperative TSH level, thyroiditis, remnant thyroid volume, and malignancy. The majority of patients with final pathology of carcinoma will require thyroid hormone supplementation to achieve TSH goal.
Collapse
Affiliation(s)
| | - Anery Patel
- Department of Medicine, Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, USA
| | - Whitney Goldner
- Department of Medicine, Division of Diabetes, Endocrinology, and Metabolism, University of Nebraska Medical Center, USA
| | - John Baker
- Department of Pathology and Microbiology, University of Nebraska Medical Center, USA
| | - Zafar Sayed
- Department of Otolaryngology, Division of Head and Neck Oncology, University of Nebraska Medical Center, USA
| | - Abbey L Fingeret
- Department of Surgery, Division of Surgical Oncology, University of Nebraska Medical Center, USA.
| |
Collapse
|
6
|
Wilson M, Patel A, Goldner W, Baker J, Sayed Z, Fingeret AL. Postoperative thyroid hormone supplementation rates following thyroid lobectomy. Am J Surg 2020; 220:1169-1173. [PMID: 32684294 DOI: 10.1016/j.amjsurg.2020.06.052] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 04/24/2020] [Accepted: 06/25/2020] [Indexed: 12/27/2022]
Abstract
BACKGROUND Thyroid lobectomy is performed for symptomatic benign nodules, indeterminate nodules, or low-risk well-differentiated thyroid cancer. We aimed to determine factors associated with need for thyroid hormone supplementation following thyroid lobectomy. METHODS We performed a retrospective single-institution cohort study of patients undergoing thyroid lobectomy from January 2016 to December 2017. Thyroid hormone supplementation was assessed postoperatively based on guidelines for thyroid stimulating hormone (TSH) level goal for benign (0.5-4.5mIU/L) or malignant (<2mIU/L) final pathology. Univariate and multivariate logistic regression analysis was performed. RESULTS One hundred patients were included and overall 47% required thyroid hormone supplementation after thyroid lobectomy: 73% of those with cancer, 38% with benign pathology (p = 0.002). Patients requiring thyroid hormone supplementation were more likely to have thyroiditis 26% versus 3.8% of those who remained euthyroid (p = 0.002); have a higher preoperative TSH: mean 1.88mIU/L (SD 1.17) versus 1.16mIU/L (SD 0.77) (p = 0.0002), and have a smaller remnant thyroid lobe adjusted for body surface area 2.99ml/m2 versus 3.72ml/m2 (p = 0.003). CONCLUSIONS After thyroid lobectomy, the need for thyroid hormone supplementation is associated with higher preoperative TSH level, thyroiditis, remnant thyroid volume, and malignancy on final pathology. The majority of patients with final pathology of carcinoma will require thyroid hormone supplementation to achieve TSH goal. For patients with benign pathology after thyroid lobectomy the majority will not require thyroid hormone supplementation to achieve TSH goal.
Collapse
Affiliation(s)
| | - Anery Patel
- Department of Medicine, Division of Diabetes, Endocrinology and Metabolism, University of Nebraska Medical Center, USA
| | - Whitney Goldner
- Department of Medicine, Division of Diabetes, Endocrinology and Metabolism, University of Nebraska Medical Center, USA
| | - John Baker
- Department of Pathology and Microbiology, University of Nebraska Medical Center, USA
| | - Zafar Sayed
- Department of Otolaryngology, Division of Head and Neck Oncology, University of Nebraska Medical Center, USA
| | - Abbey L Fingeret
- Department of Surgery, Division of Surgical Oncology, University of Nebraska Medical Center, USA.
| |
Collapse
|
7
|
Chaudhary S, Pothuraju R, Sayed Z, Jones DT, Batra SK, Macha MA. Abstract A31: Deregulation of NOTCH 1/NR4A2 signaling axis in head and neck cancer pathogenesis. Clin Cancer Res 2020. [DOI: 10.1158/1557-3265.aacrahns19-a31] [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] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Notch1 and its intracellular cytoplasmic domain (NICD) are dysregulated in many solid tumors, including head and neck squamous cell carcinoma (HNSCC), and associated with disease initiation and progression. NICD-mediated upregulation of nuclear receptor related 1 (NURR1/NR4A2) is linked to differentiation/development, homeostasis, and cellular metabolism. However, the role and molecular mechanism(s) of Notch1/NICD- NR4A2 axis in HNSCC pathogenesis are still unknown and need to be investigated.
Methods: The clinicopathologic importance of Notch1 and NR4A2 was investigated using HNSCC patient samples and publicly available databases. NR4A2 was stably knocked out (KO) and Notch1 signaling was blocked using small-molecule inhibitor (PF3084014) in HNSCC cell lines and analyzed for tumorigenic and metastatic potential. We also examined the whole-genome NR4A2 target genes using ChIP sequencing.
Results: Both Notch1 and NR4A2 were highly overexpressed in HNSCC patients. Inhibition of Notch1 signaling or NR4A2 KO significantly decreased the clonogenicity and migratory potential of HNSCC cells. Our ChIP analysis revealed that NR4A2 regulates genes involved in metabolism, hypoxia, cell cycle progression, integrin and Wnt signaling. Interestingly, we observed that NR4A2 regulates stem cell markers including Sox2, Nanog, and CD44 and their expression was drastically reduced upon Notch 1 inhibition.
Conclusion: Targeting Notch1-NR4A2 signaling axis may be crucial for inhibition of cancer stem cell-mediated HNSCC pathogenesis.
Citation Format: Sanjib Chaudhary, Ramesh Pothuraju, Zafar Sayed, Dwight T. Jones, Surinder K. Batra, Muzafar A. Macha. Deregulation of NOTCH 1/NR4A2 signaling axis in head and neck cancer pathogenesis [abstract]. In: Proceedings of the AACR-AHNS Head and Neck Cancer Conference: Optimizing Survival and Quality of Life through Basic, Clinical, and Translational Research; 2019 Apr 29-30; Austin, TX. Philadelphia (PA): AACR; Clin Cancer Res 2020;26(12_Suppl_2):Abstract nr A31.
Collapse
Affiliation(s)
| | | | - Zafar Sayed
- University of Nebraska Medical Center, Omaha, NE
| | | | | | | |
Collapse
|
8
|
Abstract
The diagnosis of carcinoma of unknown primary in the head and neck is made when there is a metastasis but no primary lesion is identified after physical exam and diagnostic CT or MR imaging. PET/CT is the first step in searching for a primary lesion, followed by more invasive techniques such as endoscopy and surgery. Knowledge of the different tumor histologic types, preferential locations of nodal spread, imaging pitfalls, and other special considerations such as cystic metastases can be helpful in the ultimate identification of primary tumors, which leads to improved overall patient survival.
Collapse
Affiliation(s)
- Megan Albertson
- Department of Radiology, University of Nebraska Medical Center, Omaha, NE.
| | - Srinivasa Chandra
- Division of Oral & Maxillofacial Surgery, Department of Head and Neck Surgery, University of Nebraska Medical Center, Omaha, NE
| | - Zafar Sayed
- Department of Otolaryngology - Head and Neck Oncology, University of Nebraska Medical Center, Omaha, NE
| | - Craig Johnson
- Department of Radiology, University of Nebraska Medical Center, Omaha, NE
| |
Collapse
|
9
|
Chaudhary S, Ganguly K, Muniyan S, Pothuraju R, Sayed Z, Jones DT, Batra SK, Macha MA. Immunometabolic Alterations by HPV Infection: New Dimensions to Head and Neck Cancer Disparity. J Natl Cancer Inst 2019; 111:233-244. [PMID: 30615137 PMCID: PMC6410958 DOI: 10.1093/jnci/djy207] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 09/29/2018] [Accepted: 11/05/2018] [Indexed: 12/12/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer, with high morbidity and mortality. Racial disparity in HNSCC is observed between African Americans (AAs) and whites, effecting both overall and 5-year survival, with worse prognosis for AAs. In addition to socio-economic status and demographic factors, many epidemiological studies have also identified factors including coexisting human papillomavirus (HPV) infection, primary tumor location, and a variety of somatic mutations that contribute to the prognostic incongruities in HNSCC patients among AAs and whites. Recent research also suggests HPV-induced dysregulation of tumor metabolism and immune microenvironment as the major regulators of HNSCC patient prognosis. Outcomes of several preclinical and clinical studies on targeted therapeutics warrant the need to elucidate the inherent mechanistic and population-based disparities underlying patient responses. This review systematically reports the underlying reasons for inconsistency in disease prognosis and therapy responses among HNSCC patients from different racial populations. The focus of this review is twofold: aside from discussing the causes of racial disparity, we also seek to identify the consequences of such disparity in terms of HPV infection and its associated mutational, metabolic, and immune landscapes. Considering the clinical impact of differential patient outcomes among AA and white populations, understanding the underlying cause of this disparity may pave the way for novel precision therapy for HNSCC.
Collapse
Affiliation(s)
- Sanjib Chaudhary
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE
| | - Koelina Ganguly
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE
| | - Sakthivel Muniyan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE
| | - Ramesh Pothuraju
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE
| | - Zafar Sayed
- Department of Otolaryngology/Head and Neck Surgery, University of Nebraska Medical Center, Omaha, NE
| | - Dwight T Jones
- Department of Otolaryngology/Head and Neck Surgery, University of Nebraska Medical Center, Omaha, NE
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE
- Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE
| | - Muzafar A Macha
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha, NE
- Department of Otolaryngology/Head and Neck Surgery, University of Nebraska Medical Center, Omaha, NE
| |
Collapse
|
10
|
Sayed Z, Migliacci JC, Cracchiolo JR, Barker CA, Lee NY, McBride SM, Tabar VS, Ganly I, Patel SG, Morris LT, Roman BR, Shoushtari AN, Cohen MA. Association of Surgical Approach and Margin Status With Oncologic Outcomes Following Gross Total Resection for Sinonasal Melanoma. JAMA Otolaryngol Head Neck Surg 2019; 143:1220-1227. [PMID: 29049462 DOI: 10.1001/jamaoto.2017.2011] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Zafar Sayed
- Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jocelyn C Migliacci
- Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Jennifer R Cracchiolo
- Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Christopher A Barker
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Nancy Y Lee
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Sean M McBride
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Viviane S Tabar
- Neurosurgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Ian Ganly
- Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Snehal G Patel
- Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Luc T Morris
- Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Benjamin R Roman
- Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Alexander N Shoushtari
- Neurosurgery Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| | - Marc A Cohen
- Head and Neck Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York
| |
Collapse
|
11
|
Affiliation(s)
- Jason Talmadge
- 1 Department of Otolaryngology-Head and Neck Surgery, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Paul Judge
- 1 Department of Otolaryngology-Head and Neck Surgery, University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - Zafar Sayed
- 1 Department of Otolaryngology-Head and Neck Surgery, University of Nebraska Medical Center, Omaha, Nebraska, USA
| |
Collapse
|
12
|
Qazi AK, Siddiqui JA, Jahan R, Chaudhary S, Walker LA, Sayed Z, Jones DT, Batra SK, Macha MA. Emerging therapeutic potential of graviola and its constituents in cancers. Carcinogenesis 2018; 39:522-533. [PMID: 29462271 PMCID: PMC5888937 DOI: 10.1093/carcin/bgy024] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 01/29/2018] [Accepted: 02/09/2018] [Indexed: 12/28/2022] Open
Abstract
Cancer remains a leading cause of death in the USA and around the world. Although the current synthetic inhibitors used in targeted therapies have improved patient prognosis, toxicity and development of resistance to these agents remain a challenge. Plant-derived natural products and their derivatives have historically been used to treat various diseases, including cancer. Several leading chemotherapeutic agents are directly or indirectly based on botanical natural products. Beyond these important drugs, however, a number of crude herbal or botanical preparations have also shown promising utility for cancer and other disorders. One such natural resource is derived from certain plants of the family Annonaceae, which are widely distributed in tropical and subtropical regions. Among the best known of these is Annona muricata, also known as soursop, graviola or guanabana. Extracts from the fruit, bark, seeds, roots and leaves of graviola, along with several other Annonaceous species, have been extensively investigated for anticancer, anti-inflammatory and antioxidant properties. Phytochemical studies have identified the acetogenins, a class of bioactive polyketide-derived constituents, from the extracts of Annonaceous species, and dozens of these compounds are present in different parts of graviola. This review summarizes current literature on the therapeutic potential and molecular mechanism of these constituents from A.muricata against cancer and many non-malignant diseases. Based on available data, there is good evidence that these long-used plants could have both chemopreventive and therapeutic potential. Appropriate attention to safety studies will be important to assess their effectiveness on various diseases caused or promoted by inflammation.
Collapse
Affiliation(s)
- Asif Khurshid Qazi
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center (UNMC), Omaha, NE, USA
| | - Jawed A Siddiqui
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center (UNMC), Omaha, NE, USA
| | - Rahat Jahan
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center (UNMC), Omaha, NE, USA
| | - Sanjib Chaudhary
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center (UNMC), Omaha, NE, USA
| | - Larry A Walker
- National Center for Natural Products Research, University of Mississippi, Mississippi, USA
| | - Zafar Sayed
- Department of Otolaryngology/Head and Neck Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| | - Dwight T Jones
- Department of Otolaryngology/Head and Neck Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| | - Surinder K Batra
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center (UNMC), Omaha, NE, USA
- Eppley Institute for Research in Cancer and Allied Diseases, University of Nebraska Medical Center, Omaha, NE, USA
- Buffett Cancer Center, University of Nebraska Medical Center, Omaha, NE, USA
| | - Muzafar A Macha
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center (UNMC), Omaha, NE, USA
- Department of Otolaryngology/Head and Neck Surgery, University of Nebraska Medical Center, Omaha, NE, USA
| |
Collapse
|
13
|
El Amin H, Abdel Baky L, Sayed Z, Abdel Mohsen E, Eid K, Fouad Y, El Khayat H. A randomized trial of endoscopic variceal ligation versus cyanoacrylate injection for treatment of bleeding junctional varices. Trop Gastroenterol 2010; 31:279-284. [PMID: 21568143] [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] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
BACKGROUND There is scarcity of data concerning the management of bleeding junctional gastroesophageal varices. AIM Our aim was to compare the efficacy and safety of endoscopic variceal ligation (EVL) with cyanoacrylate injection for the treatment of bleeding junctional varices. METHODS One hundred fifty patients with bleeding junctional varices were included in the study. Patients were subjected after randomization to either EVL of junctional varices (group 1:75 patients) or cyanoacrylate injection (group 11:75 patients). Endoscopic sessions were continued till obliteration of the varices. Clinical as well as biochemical parameters and severity of liver disease were assessed in all patients. RESULTS Control of active variceal bleeding was achieved in 61 patients (81%) in group I and in 68 patients (91%) in group II with no significant difference (p = 0.07). Re-bleeding was seen in 12 patients (16%) in group I and 5 patients in group II (6%). Junctional varix obliteration was achieved after one session in 33% of patients in group I and 52% of patients in group II, however after 2 sessions it was achieved in 67% in group I and 93 % in group II. After 3 sessions variceal obliteration was achieved in 99% in group 1. Fever, chest pain and dysphagia were observed more frequently in group II than in group I. Long term complications including spontaneous bacterial peritonitis, hepatic encephalopathy and hepatorenal syndrome were also observed more frequently group II than in group I. CONCLUSION EVL may be a good alternative to cyanoacrylate injection in treatment of bleeding junctional varices.
Collapse
Affiliation(s)
- H El Amin
- Department of Internal Medicine, Assuit University, Cairo, Egypt
| | | | | | | | | | | | | |
Collapse
|
14
|
Harris F, Sayed Z, Hussain S, Phoenix D. An investigation into the potential of phenothiazinium-based photo-sensitisers to act as PDT agents. Photodiagnosis Photodyn Ther 2004; 1:231-9. [DOI: 10.1016/s1572-1000(04)00046-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
15
|
Phoenix DA, Sayed Z, Hussain S, Harris F, Wainwright M. The phototoxicity of phenothiazinium derivatives against Escherichia coli and Staphylococcus aureus. ACTA ACUST UNITED AC 2004; 39:17-22. [PMID: 14556991 DOI: 10.1016/s0928-8244(03)00173-1] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Phenothiazinium dyes, and derivatives, were tested for toxicity to Escherichia coli and Staphylococcus aureus. The dyes were generally lipophilic (log P>1) and showed inherent dark toxicity (minimum lethal concentrations: 3.1-1000 microM). Dye illumination (total light dose of 3.15 J cm(-1) over 30 min) led to up to eight-fold reductions in minimum lethal concentrations. Most of the illuminated dyes showed significant relative singlet oxygen yields (phi'delta: 0.18-1.35) suggesting a type II mechanism of generating a phototoxic response. Although generally up to six-fold more effective against S. aureus, the dyes tested efficiently killed E. coli and may be of particular use in combating Gram-negative pathogens.
Collapse
Affiliation(s)
- D A Phoenix
- Department of Forensic and Investigative Science, University of Central Lancashire, Preston PR1 2HE, UK.
| | | | | | | | | |
Collapse
|