1
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Ronk AJ, Lloyd NM, Zhang M, Atyeo C, Perrett HR, Mire CE, Hastie KM, Sanders RW, Brouwer PJM, Saphire EO, Ward AB, Ksiazek TG, Alvarez Moreno JC, Thaker HM, Alter G, Himansu S, Carfi A, Bukreyev A. A Lassa virus mRNA vaccine confers protection but does not require neutralizing antibody in a guinea pig model of infection. Nat Commun 2023; 14:5603. [PMID: 37699929 PMCID: PMC10497546 DOI: 10.1038/s41467-023-41376-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 09/02/2023] [Indexed: 09/14/2023] Open
Abstract
Lassa virus is a member of the Arenaviridae family, which causes human infections ranging from asymptomatic to severe hemorrhagic disease with a high case fatality rate. We have designed and generated lipid nanoparticle encapsulated, modified mRNA vaccines that encode for the wild-type Lassa virus strain Josiah glycoprotein complex or the prefusion stabilized conformation of the Lassa virus glycoprotein complex. Hartley guinea pigs were vaccinated with two 10 µg doses, 28 days apart, of either construct. Vaccination induced strong binding antibody responses, specific to the prefusion conformation of glycoprotein complex, which were significantly higher in the prefusion stabilized glycoprotein complex construct group and displayed strong Fc-mediated effects. However, Lassa virus-neutralizing antibody activity was detected in some but not all animals. Following the challenge with a lethal dose of the Lassa virus, all vaccinated animals were protected from death and severe disease. Although the definitive mechanism of protection is still unknown, and assessment of the cell-mediated immune response was not investigated in this study, these data demonstrate the promise of mRNA as a vaccine platform against the Lassa virus and that protection against Lassa virus can be achieved in the absence of virus-neutralizing antibodies.
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Affiliation(s)
- Adam J Ronk
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, 77555, US
- Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX, 77555, US
| | - Nicole M Lloyd
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, 77555, US
- Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX, 77555, US
| | - Min Zhang
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, 77555, US
| | - Caroline Atyeo
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Cambridge, MA, 02139, US
| | - Hailee R Perrett
- Department of Integrative Structural and Computational Biology California Campus, Scripps Research, La Jolla, CA, 92037, US
| | - Chad E Mire
- Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX, 77555, US
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, 77555, US
| | - Kathryn M Hastie
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, 92037, US
| | - Rogier W Sanders
- Department of Medical Microbiology, Academic Medical Center, Amsterdam, Netherlands
| | - Philip J M Brouwer
- Department of Medical Microbiology, Academic Medical Center, Amsterdam, Netherlands
| | - Erica Olmann Saphire
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, 92037, US
| | - Andrew B Ward
- Department of Integrative Structural and Computational Biology California Campus, Scripps Research, La Jolla, CA, 92037, US
| | - Thomas G Ksiazek
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, 77555, US
- Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX, 77555, US
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, 77555, US
| | | | - Harshwardhan M Thaker
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, 77555, US
| | - Galit Alter
- Department of Immunology and Infectious Diseases, Harvard T.H. Chan School of Public Health, Cambridge, MA, 02139, US
| | | | | | - Alexander Bukreyev
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, 77555, US.
- Galveston National Laboratory, University of Texas Medical Branch, Galveston, TX, 77555, US.
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, 77555, US.
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2
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Alvarez Moreno JC, Ghani HA, Ovechko V, Clement C, Eyzaguirre E. p16 Immunohistochemical Expression in Nephrogenic Adenoma. Cureus 2023; 15:e41285. [PMID: 37533615 PMCID: PMC10393285 DOI: 10.7759/cureus.41285] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/02/2023] [Indexed: 08/04/2023] Open
Abstract
Nephrogenic adenoma (NA) is a rare metaplastic entity commonly associated with a prior urothelial injury. Most are seen in the urinary bladder and a minority involve the urethra. In this study, we evaluated the expression of p16 as a surrogate marker of this entity and correlated it with clinical pathological parameters. A total of 17 cases of NA were retrospectively studied to assess the immunohistochemical expression of p16 and its value for the diagnosis of this entity.
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Affiliation(s)
| | - Hafiz A Ghani
- Pathology, University of Texas Medical Branch at Galveston, Galveston, USA
| | - Vasily Ovechko
- Pathology, University of Texas Medical Branch at Galveston, Galveston, USA
| | - Cecilia Clement
- Pathology, University of Texas Medical Branch at Galveston, Galveston, USA
| | - Eduardo Eyzaguirre
- Pathology, University of Texas Medical Branch at Galveston, Galveston, USA
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3
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Shine B, Alvarez Moreno JC, Coblens O, Qiu S, Clement CG. Laryngeal Sarcomatoid Carcinoma With Rhabdomyoblastic Differentiation: A Potential Pitfall for Misdiagnosis As Rhabdomyosarcoma. Cureus 2023; 15:e40990. [PMID: 37503471 PMCID: PMC10371033 DOI: 10.7759/cureus.40990] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2023] [Indexed: 07/29/2023] Open
Abstract
Sarcomatoid carcinoma (SC) of the larynx is an uncommon subtype of squamous cell carcinoma which shows both squamous carcinoma and a sarcomatous component, including heterologous elements. The presence of rhabdomyosarcomatous elements in the larynx is extremely rare. Diagnosis of SC can be particularly challenging when the malignant epithelial component is not evident. We present a case of SC in a 72-year-old man with a superficial exophytic mass in the vocal cord initially misdiagnosed as rhabdomyosarcoma due to a predominant spindle cell component with rhabdomyoblastic features by morphology and immunohistochemistry. This case report aims to increase awareness that a rhabdomyoblastic heterologous component can be present in SC of the larynx and to consider this diagnosis in a mucosal exophytic malignant spindle cell neoplasm, even in the absence of epithelial differentiation.
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Affiliation(s)
- Billie Shine
- Pathology, University of Texas Medical Branch, Galveston, USA
| | | | - Orly Coblens
- Otolaryngology, University of Texas Medical Branch, Galveston, USA
| | - Suimin Qiu
- Pathology, University of Texas Medical Branch, Galveston, USA
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4
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Alvarez Moreno JC, He J. Invasive Breast Carcinoma With Sebaceous Morphologic Pattern Showing Lymph Node Macrometastasis: A Case Report. Cureus 2023; 15:e37365. [PMID: 37182091 PMCID: PMC10170867 DOI: 10.7759/cureus.37365] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2023] [Indexed: 05/16/2023] Open
Abstract
Invasive ductal carcinoma of no special type can present with various patterns. It is not possible to diagnose them through imaging alone. Microscopic examination is necessary to accurately identify and characterize them. The sebaceous pattern was historically considered a distinct subtype of breast carcinoma. However, the number of cases is relatively small and the prognosis has not been fully established. In this paper, we present a case of invasive ductal carcinoma with focal sebaceous features, which had a macrometastasis to the axillary lymph nodes showing the sebaceous morphology.
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Affiliation(s)
| | - Jing He
- Pathology, University of Texas Medical Branch at Galveston, Galveston, USA
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5
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Thanedar S, Gosnell JM, Clement CG, Eyzaguirre E, Alvarez Moreno JC. Nephrogenic Adenoma Arising From a Female Urethral Diverticulum: A Case Report and Potential Diagnostic Pitfalls. Cureus 2023; 15:e36578. [PMID: 37095820 PMCID: PMC10122436 DOI: 10.7759/cureus.36578] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2023] [Indexed: 04/26/2023] Open
Abstract
Nephrogenic adenoma is a benign lesion of the urothelial tract characterized by tubules surrounded by thick, hyalinized basement membranes. There is a great variety of architectural patterns within nephrogenic adenomas, including patterns that mimic malignancy, such as focal clear or hobnail cells, areas of significant nuclear atypia, mitosis, and isolated cystic changes. This represents a diagnostic pitfall, where a malignant lesion can be mistaken for a nephrogenic adenoma, leading to a delay in diagnosis and treatment that adversely affects the outcome. In this case report, we describe a nephrogenic adenoma arising in a female urethral diverticulum and discuss the differential diagnosis, which includes clear cell carcinomas, microcystic variant urothelial carcinomas, and Skene's gland cysts.
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Affiliation(s)
- Sarita Thanedar
- Pathology, University of Texas Medical Branch at Galveston, Galveston, USA
| | - Joseph M Gosnell
- Pathology, University of Texas Medical Branch at Galveston, Galveston, USA
| | - Cecilia G Clement
- Pathology, University of Texas Medical Branch at Galveston, Galveston, USA
| | - Eduardo Eyzaguirre
- Pathology, University of Texas Medical Branch at Galveston, Galveston, USA
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6
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Moreno JCA, Bahmad HF, Aljamal AA, Delgado R, Salami A, Guillot C, Castellano-Sánchez AA, Medina AM, Sriganeshan V. Prognostic Significance of p53 and p63 in Diffuse Large B-Cell Lymphoma: A Single-Institution Experience. Curr Oncol 2023; 30:1314-1331. [PMID: 36826063 PMCID: PMC9955855 DOI: 10.3390/curroncol30020102] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/11/2023] [Accepted: 01/16/2023] [Indexed: 01/19/2023] Open
Abstract
Diffuse large B-cell lymphoma (DLBCL) is the most common lymphoma in adults. We evaluated the immunohistochemical (IHC) expression of p63 and p53 in DLBCL and their significance on overall survival (OS) and progression-free survival (PFS). We conducted a retrospective cohort study of 177 patients with DLBCL who presented to Mount Sinai Medical Center of Florida (Miami Beach, Florida) between 2010 and 2020. IHC staining for p63 and p53 protein expression was performed. A significant correlation was found between p63 positivity and p53 expression, p53/p63 co-positivity, Ki-67 proliferation index, MYC expression, and MYC/BCL2 double expression. Regardless of the germinal center B-cell like (GCB) subgrouping, there was a trend among p53+ patients to have MYC/BCL2 double expression, positive MYC expression, and lower OS and PFS. A tendency of poor OS was seen in p53+ patients in the non-GCB, GCB, and double expressors subgroups and poor PFS in p53+ patients regardless of the subgrouping. In conclusion, our results suggest that p63 and p53 may represent potential additional prognostic biomarkers in DLBCL and may be included in the initial diagnostic work up of patients with DLBCL.
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Affiliation(s)
- Juan Carlos Alvarez Moreno
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL 33140, USA
| | - Hisham F Bahmad
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL 33140, USA
| | - Abed Alhalim Aljamal
- Department of Internal Medicine, Mount Sinai Medical Center, Miami Beach, FL 33140, USA
| | - Ruben Delgado
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL 33140, USA
| | - Ali Salami
- Department of Mathematics, Faculty of Sciences, Lebanese University, Nabatieh 1700, Lebanon
| | - Carolina Guillot
- Department of Translational Medicine, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
| | - Amilcar A Castellano-Sánchez
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL 33140, USA
- Department of Translational Medicine, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
| | - Ana Maria Medina
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL 33140, USA
- Department of Translational Medicine, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
| | - Vathany Sriganeshan
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL 33140, USA
- Department of Translational Medicine, Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA
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7
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Bahmad HF, Lopez O, Moreno JCA, Lopez K, Malik F, Salami A, Nieder AM, Omarzai Y, Poppiti RJ. Clinicopathological analysis of recurrence and progression of low-grade papillary urothelial carcinoma of the urinary bladder: Predicting the outcome. Ann Diagn Pathol 2022; 61:152030. [DOI: 10.1016/j.anndiagpath.2022.152030] [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: 07/06/2022] [Revised: 08/20/2022] [Accepted: 08/21/2022] [Indexed: 11/26/2022]
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8
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Moreno JCA, Pagacz M, Oh KS, Maria Medina A. Rare presentation of B-lymphoblastic leukemia/lymphoma with intussusception in an adult. J Hematop 2022. [DOI: 10.1007/s12308-022-00494-8] [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] [Indexed: 12/01/2022] Open
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9
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Bahmad HF, Demus T, Moubarak MM, Daher D, Alvarez Moreno JC, Polit F, Lopez O, Merhe A, Abou-Kheir W, Nieder AM, Poppiti R, Omarzai Y. Overcoming Drug Resistance in Advanced Prostate Cancer by Drug Repurposing. Med Sci (Basel) 2022; 10:medsci10010015. [PMID: 35225948 PMCID: PMC8883996 DOI: 10.3390/medsci10010015] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 02/12/2022] [Accepted: 02/16/2022] [Indexed: 12/12/2022] Open
Abstract
Prostate cancer (PCa) is the second most common cancer in men. Common treatments include active surveillance, surgery, or radiation. Androgen deprivation therapy and chemotherapy are usually reserved for advanced disease or biochemical recurrence, such as castration-resistant prostate cancer (CRPC), but they are not considered curative because PCa cells eventually develop drug resistance. The latter is achieved through various cellular mechanisms that ultimately circumvent the pharmaceutical’s mode of action. The need for novel therapeutic approaches is necessary under these circumstances. An alternative way to treat PCa is by repurposing of existing drugs that were initially intended for other conditions. By extrapolating the effects of previously approved drugs to the intracellular processes of PCa, treatment options will expand. In addition, drug repurposing is cost-effective and efficient because it utilizes drugs that have already demonstrated safety and efficacy. This review catalogues the drugs that can be repurposed for PCa in preclinical studies as well as clinical trials.
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Affiliation(s)
- Hisham F. Bahmad
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL 33140, USA; (J.C.A.M.); (F.P.); (R.P.); (Y.O.)
- Correspondence: or ; Tel.: +1-786-961-0216
| | - Timothy Demus
- Division of Urology, Columbia University, Mount Sinai Medical Center, Miami Beach, FL 33140, USA; (T.D.); (A.M.N.)
| | - Maya M. Moubarak
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon; (M.M.M.); (W.A.-K.)
- CNRS, IBGC, UMR5095, Universite de Bordeaux, F-33000 Bordeaux, France
| | - Darine Daher
- Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon;
| | - Juan Carlos Alvarez Moreno
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL 33140, USA; (J.C.A.M.); (F.P.); (R.P.); (Y.O.)
| | - Francesca Polit
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL 33140, USA; (J.C.A.M.); (F.P.); (R.P.); (Y.O.)
| | - Olga Lopez
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA;
| | - Ali Merhe
- Department of Urology, Jackson Memorial Hospital, University of Miami, Leonard M. Miller School of Medicine, Miami, FL 33136, USA;
| | - Wassim Abou-Kheir
- Department of Anatomy, Cell Biology, and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107-2020, Lebanon; (M.M.M.); (W.A.-K.)
| | - Alan M. Nieder
- Division of Urology, Columbia University, Mount Sinai Medical Center, Miami Beach, FL 33140, USA; (T.D.); (A.M.N.)
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA;
| | - Robert Poppiti
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL 33140, USA; (J.C.A.M.); (F.P.); (R.P.); (Y.O.)
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA;
| | - Yumna Omarzai
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL 33140, USA; (J.C.A.M.); (F.P.); (R.P.); (Y.O.)
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL 33199, USA;
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Bahmad HF, Daher D, Aljamal AA, Elajami MK, Oh KS, Alvarez Moreno JC, Delgado R, Suarez R, Zaldivar A, Azimi R, Castellano A, Sackstein R, Poppiti RJ. Repurposing of Anticancer Stem Cell Drugs in Brain Tumors. J Histochem Cytochem 2021; 69:749-773. [PMID: 34165342 PMCID: PMC8647630 DOI: 10.1369/00221554211025482] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 03/17/2021] [Accepted: 05/03/2021] [Indexed: 11/22/2022] Open
Abstract
Brain tumors in adults may be infrequent when compared with other cancer etiologies, but they remain one of the deadliest with bleak survival rates. Current treatment modalities encompass surgical resection, chemotherapy, and radiotherapy. However, increasing resistance rates are being witnessed, and this has been attributed, in part, to cancer stem cells (CSCs). CSCs are a subpopulation of cancer cells that reside within the tumor bulk and have the capacity for self-renewal and can differentiate and proliferate into multiple cell lineages. Studying those CSCs enables an increasing understanding of carcinogenesis, and targeting CSCs may overcome existing treatment resistance. One approach to weaponize new drugs is to target these CSCs through drug repurposing which entails using drugs, which are Food and Drug Administration-approved and safe for one defined disease, for a new indication. This approach serves to save both time and money that would otherwise be spent in designing a totally new therapy. In this review, we will illustrate drug repurposing strategies that have been used in brain tumors and then further elaborate on how these approaches, specifically those that target the resident CSCs, can help take the field of drug repurposing to a new level.
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Affiliation(s)
- Hisham F. Bahmad
- Arkadi M. Rywlin M.D. Department of Pathology
and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach,
Florida
| | - Darine Daher
- Faculty of Medicine, American University of
Beirut, Beirut, Lebanon
| | - Abed A. Aljamal
- Department of Internal Medicine, Mount Sinai
Medical Center, Miami Beach, Florida
| | - Mohamad K. Elajami
- Department of Internal Medicine, Mount Sinai
Medical Center, Miami Beach, Florida
| | - Kei Shing Oh
- Arkadi M. Rywlin M.D. Department of Pathology
and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach,
Florida
| | - Juan Carlos Alvarez Moreno
- Arkadi M. Rywlin M.D. Department of Pathology
and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach,
Florida
| | - Ruben Delgado
- Arkadi M. Rywlin M.D. Department of Pathology
and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach,
Florida
| | - Richard Suarez
- Department of Pathology, Herbert Wertheim
College of Medicine, Florida International University, Miami, Florida
| | - Ana Zaldivar
- Arkadi M. Rywlin M.D. Department of Pathology
and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach,
Florida
| | - Roshanak Azimi
- Arkadi M. Rywlin M.D. Department of Pathology
and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach,
Florida
| | - Amilcar Castellano
- Arkadi M. Rywlin M.D. Department of Pathology
and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach,
Florida
- Department of Pathology, Herbert Wertheim
College of Medicine, Florida International University, Miami, Florida
| | - Robert Sackstein
- Department of Translational Medicine,
Translational Glycobiology Institute, Herbert Wertheim College of Medicine,
Florida International University, Miami, Florida
| | - Robert J. Poppiti
- Arkadi M. Rywlin M.D. Department of Pathology
and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach,
Florida
- Department of Pathology, Herbert Wertheim
College of Medicine, Florida International University, Miami, Florida
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11
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Moreno JCA, Bahmad HF, Febres-Aldana CA, Pirela A, Azuero A, Salami A, Poppiti R. Post-mortem assessment of vimentin expression as a biomarker for renal tubular regeneration following acute kidney injury. J Pathol Transl Med 2021; 55:369-379. [PMID: 34638220 PMCID: PMC8601956 DOI: 10.4132/jptm.2021.08.03] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 08/03/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Acute kidney injury (AKI) is a common cause of morbidity and mortality. It mainly targets the renal tubular epithelium with pathological changes, referred to as acute tubular injury. The latter is followed by a regenerative response that is difficult to visualize on routine hematoxylin and eosin (H&E) stains. In this study, we examined the regenerative capacity of renal tubules by correlating vimentin (VIM) immunohistochemical (IHC) expression and pathological findings of AKI and renal tubular regeneration (RTR) on H&E. METHODS We reviewed 23 autopsies performed in the clinical setting of AKI and RTR. VIM expression was scored in the renal cortical tubular epithelium using a statistical cutoff ≥ 3% for high expression and < 3% for low expression. RESULTS Of the 23 kidney tissues examined, seven (30.4%) had low VIM expression, and 16 (69.6%) had high VIM expression. Kidney tissues with evidence of AKI and RTR had significantly higher VIM expression. Renal peritubular microenvironment features showing regenerative changes on H&E were associated with high VIM expression. In the univariate model, kidney tissues with RTR were 18-fold more likely to have high VIM expression. CONCLUSIONS In conclusion, our findings suggest that VIM could serve as an IHC marker for RTR following AKI. However, correlation with H&E findings remains critical to excluding chronic tubular damage. Collectively, our preliminary results pave the way for future studies including a larger sample size to validate the use of VIM as a reliable biomarker for RTR.
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Affiliation(s)
- Juan Carlos Alvarez Moreno
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL, USA
| | - Hisham F Bahmad
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL, USA
| | - Christopher A Febres-Aldana
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL, USA
| | - Andrés Pirela
- Department of Internal Medicine, Mount Sinai Medical Center, Miami Beach, FL, USA
| | - Andres Azuero
- Department of Internal Medicine, Mount Sinai Medical Center, Miami Beach, FL, USA
| | - Ali Salami
- Department of Mathematics, Faculty of Sciences, Lebanese University, Nabatieh, Lebanon
| | - Robert Poppiti
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, Miami Beach, FL, USA
- Herbert Wertheim College of Medicine, Florida International University, Miami, FL, USA
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12
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Alvarez Moreno JC, Aljamal AA, Bahmad HF, Febres-Aldana CA, Rassaei N, Recine M, Poppiti R. Correlation between spread through air spaces (STAS) and other clinicopathological parameters in lung cancer. Pathol Res Pract 2021; 220:153376. [PMID: 33647868 DOI: 10.1016/j.prp.2021.153376] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/08/2021] [Accepted: 02/09/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND "Spread through airspace" (STAS) is defined as micropapillary clusters, solid nests or single cells of tumor extending beyond the edge of the tumor into the air spaces of the surrounding lung parenchyma. It is associated with reduced overall survival and disease-free survival. Assessment of STAS in lung cancer appears to be necessary to guide clinical interventions. However, data on the correlation between the status of STAS and other lung cancer clinicopathological parameters are scarce. METHODS We reviewed 240 resected lung cancers and investigated the clinical significance of STAS in relation to other relevant lung cancer clinicopathological variables. We performed univariate and multivariate logistic regression analyses with STAS as a dependent variable. RESULTS Of the total 240 patients, STAS was observed in 67 (27.9 %) of them. STAS is highly prevalent in adenocarcinoma with a micropapillary growth pattern (70.0 %) than in other lung cancer growth patterns. STAS was frequently reported in wedge resections (31.0%) than in lobectomy specimens (26.7 %). STAS was significantly associated with advanced pN stage (p < 0.001) and lymphovascular invasion (p = 0.005). In multivariate models, we found that lung cancers in the right lower lobe (RLL) (OR, 2.674; 95 % CI = 1.313-5.448, p = 0.007), micropapillary lung cancer growth pattern (OR = 5.199, 95 % CI = 1.220-22.162, p = 0.026), and pN2 stage (OR = 3.683, 95 % CI = 1.324-10.245, p = 0.013) serve as independent predictors for STAS. CONCLUSION Our findings suggest that the presence of STAS is associated with right lower lobe tumors, micropapillary adenocarcinoma, and pN2 tumor stage. Hence, it could serve as one of the prognostically significant histologic findings in lung cancer. It is thus valid to mandate reporting STAS status in CAP surgical pathology lung cancer case summaries.
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Affiliation(s)
- Juan Carlos Alvarez Moreno
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, 4300 Alton Rd, Miami Beach, FL, United States.
| | - Abed Alhalim Aljamal
- Department of Internal Medicine, Mount Sinai Medical Center, 4300 Alton Rd, Miami Beach, FL, United States
| | - Hisham F Bahmad
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, 4300 Alton Rd, Miami Beach, FL, United States
| | - Christopher A Febres-Aldana
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, 4300 Alton Rd, Miami Beach, FL, United States
| | - Negar Rassaei
- Department of Pathology and Laboratory Medicine, Penn State Hershey Medical Center, 500 University Drive, Hershey, PA, United States
| | - Monica Recine
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, 4300 Alton Rd, Miami Beach, FL, United States; Herbert Wertheim College of Medicine. Florida International University, Miami, FL, United States
| | - Robert Poppiti
- Arkadi M. Rywlin M.D. Department of Pathology and Laboratory Medicine, Mount Sinai Medical Center, 4300 Alton Rd, Miami Beach, FL, United States; Herbert Wertheim College of Medicine. Florida International University, Miami, FL, United States
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Fragoso JS, Moreno JCA, Infiesta PC, Benevides WS, Lucio ET, Pizarro M. Principal Lesions and Patterns of Mortality Observed in a Broiler Breeder Flock During the Laying Period. Braz J Poult Sci 2021. [DOI: 10.1590/1806-9061-2020-1320] [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] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Alvarez Moreno JC, Pagacz M, Mejia O, Oh KS, Medina AM. Rhabdoid collecting duct carcinoma with lymphangitic carcinomatosis causing acute lethal chylopericardium. Respir Med Case Rep 2020; 31:101240. [PMID: 33072511 PMCID: PMC7548980 DOI: 10.1016/j.rmcr.2020.101240] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 09/24/2020] [Indexed: 11/28/2022] Open
Abstract
Collecting duct carcinoma is a rare neoplasm of the kidney, accounting for only 1–2% of renal tumors. These tumors arise from the principal cells of the renal collecting ducts of Bellini. The majority of patients have lymph node involvement and metastases to lungs, liver, bone, adrenal glands, and brain. We present a case of a 48 year old woman who came to the hospital with a clinical presentation suspicious for pneumonia. One week later her symptoms aggravated. A CT chest and abdominal imaging showed bilateral pulmonary infiltrates, retroperitoneal lymphadenopathy, and left hydroureteronephrosis. She expired after developing acute respiratory failure. An autopsy was performed which revealed chylopericadium of 150 cc; bilateral reticular pattern on the surfaces of the lungs; neck, mediastinal and retroperitoneal lymphadenopathy, and a 5.1 cm left kidney mass located in the mid portion medulla. The kidney tumor was a rhabdoid collecting duct carcinoma. The lungs showed diffuse subpleural lymphangitic spread of the carcinoma. We report a rare case of chylopericardium due to lymphangitic carcinomatosis from a 5.1 cm rhabdoid collecting duct carcinoma not suspected clinically or radiologically. This case highlights the importance of performing autopsies in an era when clinicians heavily rely on high-tech imaging diagnostic modalities.
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Affiliation(s)
| | | | - Odille Mejia
- Mount Sinai Medical Center, Miami Beach, 33140, FL, USA
| | - Kei-Shing Oh
- Mount Sinai Medical Center, Miami Beach, 33140, FL, USA
| | - Ana Maria Medina
- Mount Sinai Medical Center, Miami Beach, 33140, FL, USA.,Herbert Wertheim College of Medicine, Florida International University, Miami, 33199, FL, USA
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