endophytic squamous proliferation

Mller S. Oral epithelial dysplasia, atypical verrucous lesions and oral potentially malignant disorders: focus on histopathology. Women with multiple squamous cell carcinomas (SCCs) of the legs have a striking clinical phenotype. Although endophytic bacteria and fungi are frequently studied, endophytic archaea are increasingly being considered for their role in plant growth promotion as part of the core microbiome of a plant. Br J Dermatol. 2008;58(1):1517. Cancer. Careers. Clinically, these are solitary or coalescent skin-colored papules with a papillomatous surface. B, Parakeratosis is compact with a characteristic orange hue or peach color. This class of non-clavicipitaceous endophytes has been the most extensively researched and has been shown to enhance fitness benefits of their plant host as a result of habitat-specific stresses such as pH, temperature and salinity. J Oral Pathol Med. 2018;12(4):50010. Epidermolytic acanthoma can present as solitary or multiple (disseminated) lesions on the trunk, extremities, or genitalia. However, in contrast with condyloma acuminatum, which is typically caused by HPV types 6 and 11, VV is most commonly induced by HPV 2, followed by HPV 1, 4, 65, 27, and others.68,69 Distinction of VV and condyloma acuminatum has important clinical implication especially in the pediatric population, as condyloma acuminatum would raise suspicion for sexual abuse, whereas VV is nonsexually transmitted. [19], There are various behaviors that have been studied that resulted from endophyte symbiosis with plants. 2015;120(4):47482. Proliferative verrucous leukoplakia: unusual locations of oral squamous cell carcinomas, and field cancerization as shown by the appearance of multiple OSCCs. [67], An endophytic fungus of the genus Pseudomassaria has been found in the rainforest of the Democratic Republic of the Congo. Pentenero M, Meleti M, Vescovi P, Gandolfo S. Oral proliferative verrucous leucoplakia: are there particular features for such an ambiguous entity? Keratoacanthoma, committed stem cells and neoplastic aberrant infundibulogenesis integral to formulating a conceptual model for an infundibulocystic pathway to squamous cell carcinoma. One example of an endophyte-plant-insect interaction is located in the New Zealand grasslands, where endophytes, known as AR1 and AR37 are utilized to protect valuable ryegrass from the Argentine stem weevil but remain palatable to another important food source, livestock. PubMed 2014;118(6):71324. Koilocytes containing enlarged and irregular nuclei, perinuclear halos, and coarse keratohyalin granules may be found in the granular and upper spinous layers. [70], Endophytes appear to enhance the growth of their plant host symbionts. Frictional keratoses on the facial attached gingiva are rare clinical findings and do not belong to the category of leukoplakia. Squamous The authors declare that they have no conflict of interest. Natarajan E, Woo SB. Figure 7Verruca vulgaris. 2015;9(7):Zc17-22. Other endophytes since have been discovered that also produce paclitaxel in other host species, but to date there has been no successful industrial source of paclitaxel created. J Oral Maxillofac Surg. Oral Surg Oral Med Oral Pathol Oral Radiol. A lymphocytic band is present at the tumor base. Squamous keratinocytes are more common in this variant compared to basaloid cells. Pathol Res Pract. Watkins JC, Howitt BE, Horowitz NS, Ritterhouse LL, Dong F, MacConaill LE, et al. Differentiated exophytic vulvar intraepithelial lesions are genetically distinct from keratinizing squamous cell carcinomas and contain mutations in PIK3CA. Mod Pathol. 2017;30:44858. Karabulut A, Reibel J, Therkildsen MH, et al. [39] An example of this would be Colletotrichum fioriniae, which is an endophyte of many temperate broadleaved trees and shrubs, but can also be a pathogen on many fruits and some leaves.[40][41]. These interaction range from pathogenic to symbiotic and symptomatic to asymptomatic. Asian Pac J Cancer Prev. Endophytes include a wide variety of microorganisms including fungi, bacteria and viruses. 2004;33(2):6570. J Cutan Pathol. B, Koilocytes containing enlarged, irregular, and hyperchromatic nuclei, perinuclear halos, and coarse keratohyalin granules are found in the granular and upper spinous layers. An incisional biopsy specimen (measuring 1.5 1 cm down to bone) was obtained for histopathological examination. [15], Studies have shown that endophytic fungi grow in a very intimate interaction with their host plant cells. Villa A, Menon RS, Kerr AR, et al. 1.7 ). Condyloma acuminatum is caused by HPV infection, with HPV types 6 and 11 being the most prevalent.5 HPV 6 and 11 belong to the low-risk HPV group, which essentially has no risk for malignant progression. Inverted Follicular Keratosis - an overview | ScienceDirect Topics Clin Exp Dermatol. B, Many of the papillae have pointed tips surmounted by church spire parakeratosis. Saraswathi TR, Ranganathan K, Shanmugam S, et al. J Int Acad Periodontol. Endophytic fungi produce many secondary compounds such as alkaloids, triterpenes and steroids which have been shown to have anti-tumor effects. [62], A well known example of the discovery of chemicals derived from endophytic fungi is from the fungus Taxomyces andreanae isolated from the pacific yew Taxus brevifolia. 1. Accessibility Inter- and intra-observer variability in three grading systems for oral epithelial dysplasia. [10] Endophytes may become active and reproduce under specific environmental conditions or when their host plants are stressed or begin to senesce, thereby limiting the amount of carbon provided to the endophyte. 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Proliferative verrucous leukoplakia: recognition and differentiation from conventional leukoplakia and mimics. Rapidly progressive squamous cell carcinoma in a patient with Papillomatous and endophytic squamous proliferation is present with keratin plug, parakeratin, and mild pleomorphism of keratinocytes extending to the base of the biopsy (a). Histopathologic examination confirms an exophytic papillomatous lesion. 2006;17(3):1215. Ancillary tools available for identifying and genotyping human papillomavirus can aid in diagnosis when histopathologic findings are inconclusive. Keywords: [39] Systemic endophytes are defined as organisms that live within plant tissues for the entirety of its life cycle and participate in a symbiotic relationship without causing disease or harm to the plant at any point. These categories are based on the endophyte's genetics, biology, and mechanism of transmission from host to host. There are two different means of classifying endophytes. Class 1 endophytes are all phylogenetically related and proliferate within cool and warm season grasses. J Periodontol. which was first harvested from the plant Bontia daphnoides. 1985;60(3):28598. have activity against strains of multi drug-resistant Mycobacterium tuberculosis. Conspicuous parakeratosis fills many gaps between the Furthermore, while the benefits of endophyte relations are well-studied, the costs of these relations are less well understood, such as the specific carbon costs, the system of endophyte governance, and the environmental conditions that facilitate a proper plant-endophyte relationship. Endophytic fungi may be from Hypocreales and Xylariales of the Sordariomycetes (Pyrenomycetes) class or from the class of Loculoascomycetes. Atypical Squamous Proliferation: What Lies Beneath?, Dermatologic Surgery | 10.1111/j.1524-4725.2011.01895.x | DeepDyve DeepDyve Get 20M+ Full-Text Papers For Less Than $1.50/day. Benign alveolar ridge keratosis (oral lichen simplex chronicus): a distinct clinicopathologic entity. Endophyte - Wikipedia Oral Surg Oral Med Oral Pathol Oral Radiol Endod. These findings suggest that some cutaneous squamous proliferations on the legs of women with multiple lesions lack prominent cytologic atypia as well as TP53 mutations and might be more akin to keratoacanthoma than SCC or might represent a reactive phenomenon. [42] These four groups are divided into clavicipitaceous endophytes (Class 1) and non-clavicipitaceous endophytes (Class 2, 3, and 4). These features should prompt a closer inspection for xanthomatous (foam) cells, which are confined to the dermal papillae (Figure 9, C). Benign alveolar ridge keratosis: clinical and histopathologic analysis of 167 cases. One such endophyte comes from the Nodulisporium sp. Mod Pathol. Objective: A few neutrophils are typically present. Upadhyaya JD, Fitzpatrick SG, Cohen DM, et al. PMC Background: Tongue squamous cell carcinoma (TSCC) is highly diverse, even in its early stages. Fleiss JL. Google Scholar. This enhanced survivability is largely attributed to endophytic production of secondary metabolites which protect against herbivory as well as increased uptake of nutrients. These endophyte plant interactions are widespread and have been found in nearly all land plants and ecosystems. sharing sensitive information, make sure youre on a federal DEVIL is a rare form of squamous proliferation characterized by prevalent PIK3CA and HRAS mutations. volume15,pages 572587 (2021)Cite this article. Cases associated with high-grade intraepithelial neoplasia and warty/basaloid squamous cell carcinoma (SCC) are coinfected with high-risk HPV types.68. Learn more about Institutional subscriptions. Manipulations of a plant's endosymbiots can affect plant development, growth and ultimately the quality and quantity of compounds harvested from the plant. Keratoacanthoma and infundibulocystic squamous cell carcinoma. 2004;40(4):4403. Surgery. Woo SB. [42] Class 3 endophytes are restricted to growth in above ground plant tissues and form in localized areas of plant tissue. 2018;125(6):591602. The author has no relevant financial interest in the products or companies described in this article. Some endophytes may enhance host growth, nutrient acquisition and improve the plant's ability to tolerate abiotic stresses, such as drought and decrease biotic stresses by enhancing plant resistance to insects, pathogens and herbivores. Pigmented lesions consist of melanophages in the underlying stroma. Oral mucosal lesions associated with smokers and chewersa casecontrol study in chennai population. D, Patchy p16 immunostaining in a condyloma acuminatum (hematoxylin-eosin, original magnifications 40 [A], 400 [B], and 100 [C]; original magnification 100 [D]). Head Neck Pathol. By continuing to use our website, you are agreeing to, SPECIAL SECTIONESSENTIAL DERMATOPATHOLOGY FOR THE GENERAL SURGICAL PATHOLOGIST, PART I, GIANT CONDYLOMA ACUMINATUM (BUSCHKE-LWENSTEIN TUMOR), WARTY/WARTY-BASALOID HIGH-GRADE SQUAMOUS INTRAEPITHELIAL LESION AND SQUAMOUS CELL CARCINOMA, https://doi.org/10.5858/arpa.2018-0039-RA, Molecular Profiling of Syringocystadenocarcinoma Papilliferum Reveals, Transcription Factor Immunohistochemistry in the Classification of Pituitary Neuroendocrine Tumor/Adenoma, Using Pathology Synoptic Reporting Data to Create Individual Dashboards for Pathologists and Surgeons, TRPS1 and GATA3 Expression in Invasive Breast Carcinoma With Apocrine Differentiation, Navigating Practice Issues Related to the Unsatisfactory Cervicovaginal Papanicolaou Test: Survey Results of Laboratories Participating in the 2020 College of American Pathologists PAP Education Program, Updated Salivary Gland Immunohistochemistry: A Review, The Application and Pitfalls of Immunohistochemical Markers in Challenging Diagnosis of Genitourinary Pathology, The Prevalence of SARS-CoV-2 in Autopsies Surrounding the Time of Pandemic Onset: A Retrospective Review of Cases, MicroRed Blood Cell, Fragmented Red Blood Cell, Platelet Distribution Width, Mean Platelet Volume, and PlateletLarge Cell Ratio on Sysmex XN Series Hematology Analyzers Can Be Used for the Reflex Test of Impedance Platelet Count in Clinical Practice. Immunohistochemistry for p16 does not distinguish verrucous carcinoma from giant condyloma acuminatum, as both display negative or focal staining.30 Nuclear p53 staining is commonly present but mostly confined to the basal and suprabasal layers. Much of the confusion stems from the lack of consistent diagnostic criteria, leading to mixed data with controversial diagnoses reported in the literature. Keratosis of unknown significance and leukoplakia: a preliminary study. 2015;119(6):67583. Head Neck Pathol. [42], Endophytes may have potential future applications in agriculture. The case for antiherbivore defences", "Exploitation of endophytes for sustainable agricultural intensification", https://en.wikipedia.org/w/index.php?title=Endophyte&oldid=1141734599, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 26 February 2023, at 14:41. B, Koilocytosis and cytologic atypia are readily appreciated in this warty squamous cell carcinoma. Black and brown: non-neoplastic pigmentation of the oral mucosa. Cases were re-evaluated during a consensus conference with 19 members reporting on the cases. Figure 6Bowenoid papulosis. This compound acts like insulin and has been shown to lower blood glucose levels in mouse model experiments. The digital images were then reviewed in two surveys separated by a washout period of at least 90 days. Semin Diagn Pathol. PubMedGoogle Scholar. Conclusion: An endophyte is an endosymbiont, often a bacterium or fungus, that lives within a plant for at least part of its life cycle without causing apparent disease. The epithelium remains relatively thin. Classification of these lesions is often challenging owing to significant histopathologic overlap and sometimes controversial and confusing diagnostic criteria. A, An exophytic and endophytic verrucous squamous proliferation with a bulbous, pushing base. Class 2 endophytes can grow in plant tissues both above and below ground. Squamous 2017;18(12):32514. [23], However, the specific biochemical mechanisms behind these behavioral changes are still largely unknown and lower-level signal cascades have yet to be discovered. Methods: The rest of the keratinocytes lack cytologic atypia and mature orderly toward the surface. [20] Specific endophyte species can also stimulate root growth by increasing the flux of auxin to where the endophyte is. Bagan JV, Murillo J, Poveda R, et al. Its giant variant (giant condyloma acuminatum of Buschke-Lwenstein) is discussed separately in the next section. The first method divides endophytes into two categories: systemic (true) and nonsystemic (transient). Please enable it to take advantage of the complete set of features! The https:// ensures that you are connecting to the Med Oral Patol Oral Cir Bucal. Thompson, L.D.R., Fitzpatrick, S.G., Mller, S. et al. The increased growth and resilience is likely caused by the endophytes ability to improve plant nutrition or secondary metabolite production, as in the case of Phoma eupatorii's inhibition of the phytopathogen Phytophthora infestans. Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. Behura SS, Masthan MK, Narayanasamy AB. Oral Surg Oral Med Oral Pathol Oral Radiol. As humans become more aware of the damage that synthetic insecticides cause to the environment and beneficial insects such as bees and butterflies biological insecticides may become more important to the agricultural industry.[31]. Template:Squamous-cell like skin proliferations - Patholines Occasional koilocytes may be found in the upper layers.37 Mitoses and apoptoses are frequent and found at all levels of the epithelium (Figure 4, C; inset).46 When invasion occurs in the basaloid and warty-basaloid subtypes, the invasive nests often take on a basaloid appearance without keratinization. 2012 May;103(4):308-16. doi: 10.1016/j.ad.2011.09.004. There are occasional dyskeratotic cells, while koilocytes are absent (hematoxylin-eosin, original magnifications 10 [A] and 400 [B]). [43][44][45][46][47][48][49] Use of endophytes might potentially increase crop yields. There was moderate agreement (>0.41 kappa) for 35 of 48 cases. 2015;19(2):198204. An official website of the United States government. [5], Most endophyte-plant relationships are still not well understood. A, This lesion shows flat acanthosis with full-thickness basaloid atypia. The papillae have pointed tips and fibrovascular cores housing capillaries near the surface (Figure 7, B), which are prone to thrombosis and infarction. Giant condyloma acuminatum and verrucous carcinoma used to be considered synonymous, but accumulating evidence supports that these are distinct entities with different pathogenetic pathways. When verrucous carcinoma forms in your mouth, healthcare providers manage the condition as an oral cancer. The upper keratinocytes acquire a moderate to abundant amount of cytoplasm as they mature toward the surface,45,46 where koilocytosis is readily appreciated (Figure 4, B). Oral Surg Oral Med Oral Pathol Oral Radiol. Verrucous hyperplasia of the oral mucosa. The most comprehensive study reported 35 cases of penile papillary SCC, most of which occurred on the glans with or without involvement of the coronal sulcus and foreskin.51 The tumors form white-grey, irregular masses with serrated surfaces. Interobserver reliability in the histopathologic diagnosis of oral pre-malignant and malignant lesions. [24], Endophytic species are very diverse; only a small minority of existing endophytes have been characterized. Speight PM, Abram TJ, Floriano PN, et al. [8] Endophytes and plants often engage in mutualism, with endophytes primarily aiding in the health and survival of the host plant with issues such as pathogens and disease,[9] water stress, heat stress, nutrient availability and poor soil quality, salinity, and herbivory. T. andreanae produces paclitaxel, also known as taxol. Microscopically, the squamous papillae are of variable lengths and shapes, lined by irregular well-differentiated squamous epithelium with overlying hyperkeratosis (Figure 5, A). Fibrovascular cores are thin and inconspicuous relative to the hypertrophic epithelium. Google Scholar. Squamous cell-like skin proliferations: Differential diagnosis Main differential diagnoses and their characteristics: [1] Invasive squamous-cell carcinoma of Results: Microscopically, the lesion showed proliferation of the well-differentiated stratified squamous epithelium, forming endophytic complex branching networks interconnected with multiple deep keratin-filled clefts and crypts. Mitoses are rare and confined to the basal layer.25 A band of lymphocytic infiltrate is usually found at the base of the tumor (Figure 3, A). 2019;96:12130. On the other hand, bulky squamous epithelial proliferation that expands the epithelial thickness at least three-fold is concerning for developing ED. Oral Surg Oral Med Oral Pathol Oral Radiol. Copyright 2017 American Academy of Dermatology, Inc. WebInverted follicular keratosis (IFK) is a rare benign tumor characterized by endophytic growth on the follicular infundibulum. Provided by the Springer Nature SharedIt content-sharing initiative, Over 10 million scientific documents at your fingertips, Not logged in The eruption was Mitotic activity is low and is confined to the lower third of the epithelium. 2019;13(1):1624. Compared to the spiky papillae in verruca vulgaris (VV), the papillae in condyloma acuminatum have more rounded and undulating contours, with less robust hyperkeratosis (Figure 1, A). [31], Among the many promising applications of endophytic microbes are those intended to increase agricultural use of endophytes to produce crops that grow faster and are more resistant and hardier than crops lacking endophytes. Occasionally, keratinizing SCC may occur.37,38, As a surrogate marker for high-risk HPV infection, p16 immunohistochemical stain serves as a helpful tool to distinguish warty, basaloid, and warty-basaloid squamous neoplasms from condyloma acuminatum and HPV-independent (differentiated) squamous neoplasms. Triple therapy with intralesional 5-fluorouracil, chemowraps, and acitretin: A well-tolerated option for treatment of widespread cutaneous squamous cell carcinomas on the legs. Shear M, Pindborg JJ. https://doi.org/10.1007/s12105-020-01262-9. Architectural Alterations in Oral Epithelial Dysplasia are - Springer Squamous cell papilloma (SCP) is defined as a benign proliferation of the surface epithelium of various organs including the skin, lip, tongue, oral cavity, larynx, Krishnan L, Karpagaselvi K, Kumarswamy J, et al. The scrotum, groin, and pubis may also be affected.2123 The tumor grows exophytically and endophytically, and the exophytic excrescences are often described as cauliflower-like. Fistula formation between papillae is common. Endophytes can extensively colonize plant tissues and competitively exclude other potential pathogens. London: Wiley; 1981. Ten of the 14 tumors that remained classified as SCC had detectable TP53 mutations. A systematic review. PubMed [54], Plants are potentially able to break down or sequester, or stimulate micro-organisms in the soil to break down or sequester, certain organic pollutants and inorganic pollutants such as nickel in degraded ecosystems, which is known as phytoremediation. PubMed There is marked papillomatosis with usually mild hyperkeratosis (Figure 2, A). Epub 2011 Dec 15. These benefits can vary depending on the host and environmental conditions. The basaloid tumor cells display high nuclear to cytoplasmic ratio and frequent mitoses at all levels of the epithelium (inset). A diagnostic clue at low magnification is the presence of compact parakeratosis with an orange hue or peach color completely filling the spaces between the papillary projections (Figure 9, A and B).89 Neutrophils are often found in the parakeratotic stratum corneum (Figure 9, B). These viral cytopathic changes serve as an important diagnostic hallmark (Figure 1, B).9 Binucleated or multinucleated forms may be present. Figure 5. Would you like email updates of new search results? TP53; atypical squamous nodule; keratoacanthoma; p53; squamous cell carcinoma; squamous proliferation. [43], Many endophytes protect plants from herbivory from both insects and animals by producing secondary metabolites that are either unappetizing or toxic to the herbivore. J Oral Pathol Med. B, Higher magnification reveals features of epidermolytic hyperkeratosis: cytoplasmic vacuolation, coarse keratohyalin granules, and perinuclear eosinophilic inclusions in the spinous and granular layers (hematoxylin-eosin, original magnifications 40 [A] and 400 [B]). 2009;67(1):1406. Head Neck Pathol. Hypertrophic Lichen Planus with Histological Histologic lichenoid features in oral dysplasia and squamous cell carcinoma. Federal government websites often end in .gov or .mil. 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