1
|
Cristoni S, Bernardi LR, Malvandi AM, Larini M, Longhi E, Sortino F, Conti M, Pantano N, Puccio G. A case of personalized and precision medicine: Pharmacometabolomic applications to rare cancer, microbiological investigation, and therapy. Rapid Commun Mass Spectrom 2021; 35:e8976. [PMID: 33053249 DOI: 10.1002/rcm.8976] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 10/05/2020] [Accepted: 10/08/2020] [Indexed: 06/11/2023]
Abstract
RATIONALE Advances in metabolomics, together with consolidated genetic approaches, have opened the way for investigating the health of patients using a large number of molecules simultaneously, thus providing firm scientific evidence for personalized medicine and consequent interventions. Metabolomics is an ideal approach for investigating specific biochemical alterations occurring in rare clinical situations, such as those caused by rare associations between comorbidities and immunosuppression. METHODS Metabolomic database matching enables clear identification of molecular factors associated with a metabolic disorder and can provide a rationale for elaborating personalized therapeutic protocols. Mass spectrometry (MS) forms the basis of metabolomics and uses mass-to-charge ratios for metabolite identification. Here, we used an MS-based approach to diagnose and develop treatment options in the clinical case of a patient afflicted with a rare disease further complicated by immunosuppression. The patient's data were analyzed using proprietary databases, and a personalized and efficient therapeutic protocol was consequently elaborated. RESULTS The patient exhibited significant alterations in homocysteine:methionine and homocysteine:thiodiglycol acid plasma concentration ratios, and these were associated with low immune system function. This led to cysteine concentration deficiency causing extreme oxidative stress. Plasmatic thioglycolic acid concentrations were initially altered and were used for therapeutic follow-up and to evaluate cysteine levels. CONCLUSIONS An MS-based pharmacometabolomics approach was used to define a personalized protocol in a clinical case of rare peritoneal carcinosis with confounding immunosuppression. This personalized protocol reduced both oxidative stress and resistance to antibiotics and antiviral drugs.
Collapse
Affiliation(s)
- Simone Cristoni
- Ion Source & Biotechnologies (ISB) srl, Biotechnology, Bresso, Italy
| | - Luigi Rossi Bernardi
- Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Multimedica, Biotechnology and cardiovascular medicine, Milan, Italy
| | - Amir Mohammad Malvandi
- Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Multimedica, Biotechnology and cardiovascular medicine, Milan, Italy
| | - Martina Larini
- Ion Source & Biotechnologies (ISB) srl, Biotechnology, Bresso, Italy
| | - Ermanno Longhi
- Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Multimedica, Biotechnology and cardiovascular medicine, Milan, Italy
| | | | - Matteo Conti
- University Hospital of Bologna Sant'Orsola-Malpighi Polyclinic, Analytical Chemistry, Bologna, Italy
| | | | - Giovanni Puccio
- Emmanuele Scientific Research Association, Analytical Chemistry, Palermo, Italy
| |
Collapse
|
2
|
Perales-Puchalt A, Perez-Sanz J, Payne KK, Svoronos N, Allegrezza MJ, Chaurio RA, Anadon C, Calmette J, Biswas S, Mine JA, Costich TL, Nickels L, Wickramasinghe J, Rutkowski MR, Conejo-Garcia JR. Frontline Science: Microbiota reconstitution restores intestinal integrity after cisplatin therapy. J Leukoc Biol 2018; 103:799-805. [PMID: 29537705 PMCID: PMC6004318 DOI: 10.1002/jlb.5hi1117-446rr] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [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: 11/15/2017] [Revised: 02/06/2018] [Accepted: 02/07/2018] [Indexed: 12/24/2022] Open
Abstract
Due to their cytotoxic activities, many anticancer drugs cause extensive damage to the intestinal mucosa and have antibiotic activities. Here, we show that cisplatin induces significant changes in the repertoire of intestinal commensal bacteria that exacerbate mucosal damage. Restoration of the microbiota through fecal-pellet gavage drives healing of cisplatin-induced intestinal damage. Bacterial translocation to the blood stream is correspondingly abrogated, resulting in a significant reduction in systemic inflammation, as evidenced by decreased serum IL-6 and reduced mobilization of granulocytes. Mechanistically, reversal of dysbiosis in response to fecal gavage results in the production of protective mucins and mobilization of CD11b+ myeloid cells to the intestinal mucosa, which promotes angiogenesis. Administration of Ruminococcus gnavus, a bacterial strain selectively depleted by cisplatin treatment, could only partially restore the integrity of the intestinal mucosa and reduce systemic inflammation, without measurable increases in the accumulation of mucin proteins. Together, our results indicate that reconstitution of the full repertoire of intestinal bacteria altered by cisplatin treatment accelerates healing of the intestinal epithelium and ameliorates systemic inflammation. Therefore, fecal microbiota transplant could paradoxically prevent life-threatening bacteremia in cancer patients treated with chemotherapy.
Collapse
Affiliation(s)
- Alfredo Perales-Puchalt
- Translational Tumor Immunology Program, The Wistar Institute, Philadelphia, Pennsylvania, USA
| | - Jairo Perez-Sanz
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA
| | - Kyle K Payne
- Translational Tumor Immunology Program, The Wistar Institute, Philadelphia, Pennsylvania, USA
| | - Nikolaos Svoronos
- Tumor Microenvironment and Metastasis Program, The Wistar Institute, Philadelphia, Pennsylvania, USA
| | - Michael J Allegrezza
- Tumor Microenvironment and Metastasis Program, The Wistar Institute, Philadelphia, Pennsylvania, USA
| | - Ricardo A Chaurio
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA
| | - Carmen Anadon
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA
| | - Joseph Calmette
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA
| | - Subir Biswas
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA
| | - Jessica A Mine
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA
| | - Tara Lee Costich
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA
| | - Logan Nickels
- Department of Microbiology, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Jayamanna Wickramasinghe
- Center for Systems and Computational Biology, The Wistar Institute, Philadelphia, Pennsylvania, USA
| | - Melanie R Rutkowski
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, Virginia, USA
| | - Jose R Conejo-Garcia
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, Tampa, Florida, USA
| |
Collapse
|
3
|
Kimura I, Ito Y. Possible activation of C-type particles during 'progression' of the chemically-induced pulmonary tumors in mice. Bibl Haematol 2015; 39:589-94. [PMID: 4360185 DOI: 10.1159/000427887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
4
|
Virgilio E, Mercantini P, Ferri M, Cavallini M, Teggi A, Ziparo V. Coexistence of diffuse malignant peritoneal mesothelioma and Candida norvegensis peritonitis. Surg Infect (Larchmt) 2014; 15:660-1. [PMID: 25314348 DOI: 10.1089/sur.2014.088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Edoardo Virgilio
- 1 Department of Medical and Surgical Sciences and Translational Medicine, Faculty of Medicine and Psychology "Sapienza," Rome, Italy
| | | | | | | | | | | |
Collapse
|
5
|
Semino-Mora C, Testerman TL, Liu H, Whitmire JM, Studeman K, Jia Y, McAvoy TJ, Francis J, Nieroda C, Sardi A, Merrell DS, Dubois A. Antibiotic treatment decreases microbial burden associated with pseudomyxoma peritonei and affects β-catenin distribution. Clin Cancer Res 2013; 19:3966-76. [PMID: 23743566 DOI: 10.1158/1078-0432.ccr-13-0616] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [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: 01/08/2023]
Abstract
PURPOSE Pseudomyxoma peritonei is an understudied cancer in which an appendiceal neoplasm invades the peritoneum and forms tumor foci on abdominal organs. Previous studies have shown that bacteria reside within pseudomyxoma peritonei tumors and mucin. Thus, we sought to analyze the effect of antibiotics on bacterial density and β-catenin expression within pseudomyxoma peritonei samples. EXPERIMENTAL DESIGN The study included 48 patients: 19 with disseminated peritoneal adenomucinosis (DPAM) and 29 with peritoneal mucinous carcinomatosis (PMCA). Fourteen patients were given antibiotics (30 mg lansoprazole, 1 g amoxicillin, and 500 mg clarithromycin) twice a day for 14 days. One week after completion of therapy, surgery was conducted and specimens were harvested for pathology, bacterial culture, ISH, and immunohistochemistry. RESULTS ISH showed the presence of bacteria in 83% of the patient samples, with a higher Helicobacter pylori density observed in PMCA versus DPAM. PMCA patients treated with antibiotics had a significantly lower bacterial density and decreased β-catenin levels in the cytoplasm, the cell nuclei, and mucin-associated cells. Although not significant, similar trends were observed in DPAM patients. Cell membrane β-catenin was significantly increased in both DPAM and PMCA patients receiving antibiotics. CONCLUSIONS Bacteria play an important role in pseudomyxoma peritonei. Antibiotic treatment improved the histopathology of tissue, particularly in PMCA patients. In PMCA, antibiotics decreased bacterial density and were associated with a significant β-catenin decrease in the cytoplasm, cell nuclei, and mucin along with a small membrane increase. These results suggest that antibiotics offer potential protection against cell detachment, cellular invasion, and metastasis.
Collapse
Affiliation(s)
- Cristina Semino-Mora
- Uniformed Services University and United States Military Cancer Institute, Bethesda, Maryland 20814, USA
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
6
|
Semino-Mora C, Liu H, McAvoy T, Nieroda C, Studeman K, Sardi A, Dubois A. Pseudomyxoma peritonei: is disease progression related to microbial agents? A study of bacteria, MUC2 AND MUC5AC expression in disseminated peritoneal adenomucinosis and peritoneal mucinous carcinomatosis. Ann Surg Oncol 2008; 15:1414-23. [PMID: 18299935 PMCID: PMC2570966 DOI: 10.1245/s10434-007-9778-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [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: 08/09/2007] [Revised: 12/01/2007] [Accepted: 12/03/2007] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND AIMS Pseudomyxoma peritonei (PMP) is characterized by peritoneal tumors arising from a perforated appendiceal adenoma or adenocarcinoma, but associated entry of enteric bacteria in the peritoneum has not been considered as a cofactor. Because Gram-negative organisms can upregulate MUC2 mucin gene expression, we determined whether bacteria were detectable in PMP tissues. METHODS In situ hybridization was performed on resection specimens from five control subjects with noninflamed, nonperforated, non-neoplastic appendix and 16 patients with PMP [six with disseminated peritoneal adenomucinosis (DPAM) and 10 with peritoneal mucinous carcinomatosis (PMCA)]. Specific probes were designed to recognize: (1) 16S rRNA common to multiple bacteria or specific to H. pylori; (2) H. pylori cagA virulence gene; or (3) MUC2 or MUC5AC apomucins. Specimens from one patient with PMCA were examined by ultrastructural immunohistochemistry. Bacterial density and apomucin expression were determined in four histopathological compartments (epithelia, inflammatory cells, stroma, and free mucus). RESULTS Enteric bacteria were detected in all specimens. Bacterial density and MUC2 expression were significantly (p < 0.05) higher in PMCA than in DPAM and controls and were highest in free mucin. MUC2 was also expressed in dysplastic epithelia and in associated inflammatory cells. MUC2 expression was significantly correlated with bacterial density. CONCLUSIONS Multiple enteric bacteria are present in PMP, and bacterial density and MUC2 expression is highest in the malignant form of PMP. Based on these observations, we propose that the bacteria observed in PMP may play a role in the mucinous ascites and perhaps promote carcinogenesis.
Collapse
Affiliation(s)
- Cristina Semino-Mora
- Laboratory of Gastrointestinal and Liver Studies, Department of Medicine, Uniformed Services University and United States Military Cancer Institute, Bethesda, MD 20814, USA
| | | | | | | | | | | | | |
Collapse
|
7
|
Tafur AJ, Quevedo F. Do we see spontaneous bacterial peritonitis in patients with malignant ascites? Acta Gastroenterol Latinoam 2005; 35:196-7. [PMID: 16333978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
|
8
|
Sakate Y, Yashiro M, Tanaka H, Kosaka K, Ohira M, Hirakawa K. Suppression of peritoneal metastasis in human gastric carcinoma by enhanced immunogenicity of B7-1 transfection. Oncol Rep 2004; 12:53-7. [PMID: 15201958] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023] Open
Abstract
B7-1, a co-stimulatory factor, has been reported to induce cytotoxic T lymphocytes (CTL). In the present study, we transfected B7-1 genes into a gastric cancer cell line (2MD3) and analyzed the effects of B7-1 transduction on peritoneal metastasis in vitro and in vivo. We revealed that mononuclear lymphocytes show significantly stronger adherence and cytotoxicity to B7-1 transfected cells (2MD3/B7) than to their parent 2MD3 cells. We also demonstrated that mice inoculated with 2MD3/B7 cells in the peritoneal cavity have a significantly better survival rate than those inoculated with 2MD3 cells (log-rank test, p<0.01). Histologic findings showed that leukocytes intensively infiltrate the 2MD3/B7 metastatic nodules, but can scarcely be observed in the nodules associated with 2MD3 cells. These findings indicate that the B7-1 may play an important role in suppressing peritoneal metastasis by the mechanism of enhanced immunogenicity, and that B7-1 gene transduction might be effective against peritoneal metastases of gastric cancer.
Collapse
Affiliation(s)
- Yoji Sakate
- Department of Surgical Oncology, Osaka City University Graduate School of Medicine, Osaka 545-8585, Japan
| | | | | | | | | | | |
Collapse
|
9
|
Abstract
Different patterns of granulomas have been observed in 6- to 8-week-old mice after ip inoculation with 5 x 10(6) yeast cells of Paracoccidioides brasiliensis. Transforming growth factor-beta (TGF-beta) is a cytokine that has been shown to participate in fibrosis and granuloma formation; its activities seem to be modulated by the small proteoglycan decorin. In the present study, TGF-beta and decorin expression in epiploon granulomas was assessed by immunohistochemistry in susceptible (B10.A) and resistant (A/J) mice after 15, 30, 120 and 150 days of P. brasiliensis ip infection. The epiploon was collected, fixed in Methacarn solution and embedded in paraffin, and 5-microm thick sections were used for immunohistochemical analysis employing the streptavidin-biotin-peroxidase technique. The former mouse strain developed fatal disease with many disseminated lesions increasing in size and number during the infection and the latter developed mild disease with the presence of encapsulated granulomas. In the epiploon, TGF-beta was present on macrophages, giant cells, lymphocytes and fibroblasts, and absent on neutrophils. It was also detected in areas of fibrosis and necrosis, as well as disperse in amorphous extracellular matrix, mostly in resistant mice. Decorin was present circumscribing macrophages and giant cells containing fungi, but absent on these cells. In both mouse strains, decorin was found at the periphery of the lesions, and markedly in milky spot granulomas. In resistant mice, positivity was found around fibrotic and necrotic areas of encapsulated and residual lesions containing lysed fungi. Decorin was found associated with thick fibers around encapsulated lesions. In susceptible mice, the size and number of lesions increased with the progression of the disease and were correlated with the weaker expression of decorin. We suggest an association of decorin with the fibrogenic process observed in paracoccidioidal granulomas.
Collapse
Affiliation(s)
- A S Nishikaku
- Departamento de Imunologia, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, SP, Brasil
| | | |
Collapse
|
10
|
Abstract
BACKGROUND A 43-year-old woman who had been using intrauterine contraceptive devices for the past 10 years underwent an emergency operation for bowel and urinary obstruction. METHODS/RESULTS Frozen section analysis showed undifferentiated adenocarcinoma. Incomplete tumorectomy, ileal resection, partial cystectomy, colostomy and bilateral ureterocutaneostomy were palliatively performed. Postoperatively, periodic acid-Schiff and Grocott-Gomori methenamine tests revealed Actinomyces and the final diagnosis was pelvic actinomycosis. Treatment with penicillin G administered intravenously relieved her symptoms and the lesion was dramatically improved. The patient underwent colostomy closure and urinary undiversion. CONCLUSIONS Five years after urinary undiversion, the patient's renal function has been maintained and she can void without incontinence and dysuria.
Collapse
Affiliation(s)
- H Maeda
- Department of Urology, Kurashiki Central Hospital, Japan
| | | | | | | | | | | | | | | |
Collapse
|
11
|
Cullen JM, Newbold JE, Sherman GJ. A teratoma in a duck infected congenitally with duck hepatitis B virus. Avian Dis 1991; 35:638-41. [PMID: 1953589] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A teratoma was diagnosed in an 8-month-old pekin duck based on the presence of tissue derived from embryonic ectoderm, mesoderm, and endoderm in the neoplasm. The neoplasm was examined for the presence of duck hepatitis B virus, because the duck was congenitally infected with the virus, a member of the hepadnavirus family that is associated with hepatic neoplasms in hepadnavirus-infected mammals. Persistent infection occurred in the liver, but no evidence of viral infection was found in the neoplasm.
Collapse
Affiliation(s)
- J M Cullen
- Department of Microbiology, Pathology, and Parasitology, College of Veterinary Medicine, North Carolina State University, Raleigh 27606
| | | | | |
Collapse
|
12
|
Gross L, Feldman D, Dreyfuss Y, Ehrenreich T, Moore LA. C-type virus particles in urethan-induced pulmonary and renal carcinomas, in cell-graft-transmitted carcinosarcomas, and in filtrate-induced lymphomas in mice. Cancer Res 1976; 36:181-8. [PMID: 174806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Repeated injections of urethan into suckling BALB/c mice induced multiple papillary adenocarcinomas in the lungs and kidneys. When the pulmonary tumors were transplanted i.p. by cell graft into 6 suckling BALB/c mice, they induced disseminated carcinosarcomas within the peritoneal cavity in all inoculated animals. Tumors resulting from the transplantation of tumor cells were used for preparation of filtered extracts. The filtrates were inoculated into 6 suckling BALB/c mice and induced generalized malignant lymphomas in all animals. The primary urethan-induced pulmonary and renal tumors, the carcinosarcomas that resulted from i.p. cell transfer, and also the generalized malignant lymphomas induced by inoculation of filtered extracts contained C-type virus particles. Theoretically, it could be assumed that both the primary urethan-induced pulmonary and renal tumors, as well as the cell-graft-induced peritoneal carcinosarcomas, contained the C-type virus particles as passengers, not necessarily related etiologically to the tumors in which they were found. It is quite likely, however, that these virus particles were etiologically related to the filtrate-induced malignant lymphomas in which they were also found.
Collapse
|
13
|
Mukai N, Kobayashi S, Oguri M. Ultrastructural findings in medulloepitheliomatous neoplasms induced by human adenovirus 12 in rodents. Acta Neuropathol 1974; 28:293-304. [PMID: 4446933 DOI: 10.1007/bf00685284] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
14
|
Eaton MD, Heller JA, Scala AR. Enhancement of lymphoma cell immunogenicity by infection with nononcogenic virus. Cancer Res 1973; 33:3293-8. [PMID: 4357358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
15
|
Mayo J, Lombardo L, Klein-Szanto AJ, Conti CJ, Moreira JL. An oncogenic virus carried by hamster kidney cells. Cancer Res 1973; 33:2273-7. [PMID: 4741929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
16
|
Lieberman M, Niwa O, Declève A, Kaplan HS. Continuous propagation of radiation leukemia virus on a C57BL mouse-embryo fibroblast line, with attenuation of leukemogenic activity. Proc Natl Acad Sci U S A 1973; 70:1250-3. [PMID: 4352226 PMCID: PMC433469 DOI: 10.1073/pnas.70.4.1250] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
The radiation leukemia virus (RadLV), a murine leukemia virus derived from thymic lymphomas induced by x-irradiation in strain C57BL/Ka mice, has been successfully propagated in sustained high titer in vitro in a newly established line, BL-5, of C57BL/Ka mouse-embryo fibroblasts. In addition, the production of endogenous virus, presumed to be RadLV, has been induced and sustained through multiple serial passages after treatment of BL-5 cell cultures with 5-bromodeoxyuridine. The chronically RadLV-infected subline, designated BL-5 (RadLV), sheds virus into the supernatant culture fluids that is biologically active in vitro in the XC cell plaque assay, in interference assays for focus-formation by murine sarcoma virus, and in the intracellular induction of group-specific antigens detectable by immunofluorescence, but is apparently devoid of leukemogenic activity after intrathymic inoculation into neonatal or immunosuppressed C57BL/Ka mice. Although BL-5 cells exhibited morphological alterations suggestive of transformation in vitro and gave rise to fibrosarcomatous ascites tumors after intraperitoneal inoculation with C57BL/Ka mice, the chronically infected BL-5(RadLV) cells remained normal in morphology and failed to yield fibrosarcomas in vivo.
Collapse
|
17
|
|
18
|
Mukai N, Kobayashi S. Undifferentiated intraperitoneal tumors induced by human adenovirus type 12 in hamsters. Am J Pathol 1972; 69:331-48. [PMID: 4634738 PMCID: PMC2032634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A single intraperitoneal inoculation of 0.01 ml of virus fluid, 10(3.5) to 10(4.5) TCID(50) HeLa cells/0.1 ml, was made in 12 newborn hamsters. From 28 to 96 days after the virus inoculation, all 12 hamsters developed multiple, multicentric tumors in the peritoneal cavity. Histopathologic observations on these abdominal tumors strongly suggest that the so-called adenovirus-typical undifferentiated neoplasm produced by intraperitoneal inoculation may originate in part from a neuronal precursor cell group destined for the myenteric plexus. A histochemical study has indicated no direct evidence that the intracytoplasmic basophilic corpuscle is comparable to that of the enterochromaffin pigment. A cytologic perusal under electron microscopy has merely suggested that the poorly differentiated tumor cells closely resemble those described in undifferentiated neurogenic tumors. The mechanism of selective susceptibility of certain neuronal precursor cells to adenovirus remains unanswered.
Collapse
|
19
|
Eiselein J, Biggs MW. Observations with a variant of lymphocytic choriomeningitis virus in mouse tumors. Cancer Res 1970; 30:1953-7. [PMID: 4989547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
20
|
Grieshaber E, Pedio G, Rüttner JR. On plasmocytoma--oncogenesis of mice. V. Viruses and virus related structures in HIPA tumor. Pathol Microbiol (Basel) 1969; 34:86-97. [PMID: 5379707 DOI: 10.1159/000162135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
21
|
|