526
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Avery P, Freyberger A, Rodriguez J, Stephens R, Yelton J, Cinabro D, Henderson S, Kinoshita K, Liu T, Saulnier M, Wilson R, Yamamoto H, Ong B, Selen M, Sadoff AJ, Ammar R, Ball S, Baringer P, Coppage D, Copty N, Davis R, Hancock N, Kelly M, Kwak N, Lam H, Kubota Y, Lattery M, Nelson JK, Patton S, Perticone D, Poling R, Savinov V, Schrenk S, Wang R, Alam MS, Kim IJ, Nemati B, O'Neill JJ, Romero V, Severini H, Sun CR, Zoeller MM, Crawford G, Daubenmier CM, Fulton R, Fujino D, Gan KK, Honscheid K, Kagan H, Kass R, Lee J, Malchow R, Morrow F, Skovpen Y, Sung M, White C, Whitmore J, Wilson P, Butler F, Fu X, Kalbfleisch G, Lambrecht M, Ross WR, Skubic P. Study of the decays Lambda c+--> Xi 0K+, Lambda c+--> Sigma +K+K-, and Lambda c+--> Xi -K+ pi +. PHYSICAL REVIEW LETTERS 1993; 71:2391-2395. [PMID: 10054669 DOI: 10.1103/physrevlett.71.2391] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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527
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Fu X, Rezapour M, Löfgren M, Ulmsten U, Bäckström T. Antitachyphylactic effects of progesterone and oxytocin on term human myometrial contractile activity in vitro. Obstet Gynecol 1993; 82:532-8. [PMID: 8377978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
OBJECTIVE To determine whether progesterone causes any changes in the action of oxytocin on the contractile activity of term human myometrium in vitro. METHODS Myometrial biopsies from 13 term pregnant women undergoing cesarean delivery were immediately immersed in Hepes buffer or buffer containing 5 micrograms/mL progesterone. In the laboratory under a stereomicroscope, the specimens were dissected into 1 x 7.5-mm muscle strips. These were mounted into six tissue baths and superfused with Hepes buffer and buffer containing 5 micrograms/mL progesterone, 5 micrograms/mL progesterone plus 10 microU/mL oxytocin, 5 micrograms/mL progesterone plus 100 microU/mL oxytocin, 10 microU/mL oxytocin, and 100 microU/mL oxytocin. Isometric tension was recorded constantly for at least 3 hours. RESULTS The frequency of myometrial contractions and tonus increased by superfusion with progesterone, progesterone plus oxytocin, and oxytocin alone compared to buffer. In addition, a gradual decrease in frequency was observed after 60 minutes of contractions with oxytocin alone, whereas progesterone plus oxytocin had no such decrease. The activity area of contractions was greater with 10 microU/mL oxytocin and decreased with progesterone, progesterone plus both concentrations of oxytocin, and 100 microU/mL oxytocin alone, compared to buffer. CONCLUSIONS Progesterone stimulated the frequency of contractions and tonus of strips from the lower uterine segment of term human myometrium. A lasting increase in the frequency of contractions was observed with superfusion of progesterone plus oxytocin, suggesting that progesterone counteracted the reaction of tachyphylaxis to oxytocin.
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528
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Selen M, Sadoff AJ, Ammar R, Ball S, Baringer P, Coppage D, Copty N, Davis R, Hancock N, Kelly M, Kwak N, Lam H, Kubota Y, Lattery M, Nelson JK, Patton S, Perticone D, Poling R, Savinov V, Schrenk S, Wang R, Alam MS, Kim IJ, Nemati B, O'Neill JJ, Severini H, Sun CR, Zoeller MM, Crawford G, Daubenmeir CM, Fulton R, Fujino D, Gan KK, Honscheid K, Kagan H, Kass R, Lee J, Malchow R, Morrow F, Skovpen Y, Sung M, White C, Whitmore J, Wilson P, Butler F, Fu X, Kalbfleisch G, Lambrecht M, Ross WR, Skubic P, Snow J, Wang PL, Wood M, Bortoletto D, Brown DN, Fast J, McIlwain RL, Miao T, Miller DH, Modesitt M, Schaffner SF, Shibata EI, Shipsey IP, Wang PN. Measurement of the D--> pi pi branching fractions. PHYSICAL REVIEW LETTERS 1993; 71:1973-1977. [PMID: 10054551 DOI: 10.1103/physrevlett.71.1973] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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529
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Alam MS, Kim IJ, Nemati B, O'Neill J, Severini H, Sun CR, Zoeller MM, Crawford G, Daubenmier CM, Fulton R, Fujino D, Gan KK, Honscheid K, Kagan H, Kass R, Lee J, Malchow R, Morrow F, Skovpen Y, Sung M, White C, Whitmore J, Wilson P, Butler F, Fu X, Kalbfleisch G, Lambrecht M, Ross WR, Skubic P, Snow J, Wang PL, Wood M, Bortoletto D, Brown DN, Fast J, McIlwain RL, Miao T, Miller DH, Modesitt M, Schaffner SF, Shibata EI, Shipsey IP, Wang PN, Battle M, Ernst J, Kroha H, Roberts S, Sparks K, Thorndike EH, Wang CH, Dominick J, Sanghera S, Skwarnicki T, Stroynowski R, Artuso M, He D, Goldberg M, Horwitz N, Kennett R, Moneti GC, Muheim F, Mukhin Y, Playfer S, Rozen Y. Measurement of the ratio scrB(D+--> pi 0l+ nu )/scrB(D+-->K-bar0l+ nu ). PHYSICAL REVIEW LETTERS 1993; 71:1311-1315. [PMID: 10055508 DOI: 10.1103/physrevlett.71.1311] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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530
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Zhang Z, Wang H, Ye P, Shen Y, Fu X. Low-power and broadband optical bistability by excitation of surface plasmons in doped polymer film. APPLIED OPTICS 1993; 32:4495-4500. [PMID: 20830109 DOI: 10.1364/ao.32.004495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The low-power and broadband optical bistability in an acceptor-donor-substituted azobenzene-doped polymethyl methacrylate thin film, which relies on the excitation of surface plasmons with a cw laser of several tens of milliwatt power, is studied experimentally and theoretically. The observations on the characteristics of the bistability are essentially consistent with the theoretical predictions.
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531
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Ammar R, Ball S, Baringer P, Coppage D, Copty N, Davis R, Hancock N, Kelly M, Kwak N, Lam H, Kubota Y, Lattery M, Nelson JK, Patton S, Perticone D, Poling R, Savinov V, Schrenk S, Wang R, Alam MS, Kim IJ, Nemati B, O'Neill JJ, Severini H, Sun CR, Zoeller MM, Crawford G, Daubenmeir M, Fulton R, Fujino D, Gan KK, Honscheid K, Kagan H, Kass R, Lee J, Malchow R, Morrow F, Skovpen Y, Sung M, White C, Whitmore J, Wilson P, Butler F, Fu X, Kalbfleisch G, Lambrecht M, Ross WR, Skubic P, Snow J, Wang PL, Wood M, Bortoletto D, Brown DN, Fast J, McIlwain RL, Miao T, Miller DH, Modesitt M, Schaffner SF, Shibata EI, Shipsey IP, Wang PN, Battle M, Ernst J. Evidence for penguin-diagram decays: First observation of B-->K*(892) gamma. PHYSICAL REVIEW LETTERS 1993; 71:674-678. [PMID: 10055338 DOI: 10.1103/physrevlett.71.674] [Citation(s) in RCA: 79] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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532
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Fu X, Le P, Hoffman RM. A metastatic orthotopic-transplant nude-mouse model of human patient breast cancer. Anticancer Res 1993; 13:901-4. [PMID: 8352558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We report here the development of an orthotopic-transplant model of human patient breast cancer in nude mice. Histologically-intact patient breast tumor tissue was transplanted as intact tissue to the mammary fat pad of nude mice where the tumor tissue grew extensively and metastasized to the lung. This is the first orthotopic-transplant metastatic model of human breast cancer. The potential clinical and basic-science uses of the model are discussed.
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533
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Fu X, Sévenet T, Remy F, Païs M, Hamid A, Hadi A, Zeng LM. Flavonone and chalcone derivatives from Cryptocarya kurzii. JOURNAL OF NATURAL PRODUCTS 1993; 56:1153-1163. [PMID: 8377019 DOI: 10.1021/np50097a021] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Four complex flavanones, kurziflavolactones A [2], B [3], C [4], and D [5] and a complex chalcone 6 with an unprecedented carbon side chain on the flavanone or chalcone A ring have been isolated from a Malaysian plant, Cryptocarya kurzii (Lauraceae). Their structures were determined by extensive spectroscopic analysis, especially 2D nmr experiments. Compounds 3 and 6 showed slight cytotoxicity against KB cells, with IC50 values of 4 and 15 micrograms/ml, respectively. A biosynthetic pathway for the formation of these compounds is suggested.
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534
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Fu X, Rezapour M, Löfgren M, Ulmsten U, Bäckström T. Unexpected stimulatory effect of progesterone on human myometrial contractile activity in vitro. Obstet Gynecol 1993; 82:23-8. [PMID: 8515921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVE To investigate the effects of continuous exposure of progesterone on contractile activity of term human myometrium in vitro. METHODS Myometrial biopsy specimens were obtained from 14 term pregnant women undergoing elective cesarean. The specimens were immediately immersed in Hepes buffer and buffer containing 0.33, 4.1, and 70 micrograms/mL progesterone. Muscle biopsies were dissected along the bundles of smooth muscle under stereomicroscope. These myometrial strips were mounted in tissue baths and superfused with Hepes buffer and buffer containing different concentrations of progesterone. RESULTS The progesterone concentration of 0.33 microgram/mL had no significant effect on myometrial contractile activity. The concentrations of 4.1 and 70 micrograms/mL increased the frequency of contractions (P < .01 for each) and tonus (P < .01 for each), decreased the activity area of contractions (P < .01 for each), and delayed the onset of contractions (P < .01 and P < .05, respectively). CONCLUSION When the myometrium is not deprived of progesterone, this hormone may have excitatory effects on the frequency of contractions and tonus of the lower uterine segment of term human myometrium.
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535
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Cinabro D, Henderson S, Kinoshita K, Liu T, Saulnier M, Wilson R, Yamamoto H, Sadoff AJ, Ammar R, Ball S, Baringer P, Coppage D, Copty N, Davis R, Hancock N, Kelly M, Kwak N, Lam H, Kubota Y, Lattery M, Nelson JK, Patton S, Perticone D, Poling R, Savinov V, Schrenk S, Wang R, Alam MS, Kim IJ, Nemati B, O'Neill JJ, Romero V, Severini H, Sun CR, Zoeller MM, Crawford G, Fulton R, Fujino D, Gan KK, Kagan H, Kass R, Lee J, Malchow R, Morrow F, Skovpen Y, Sung M, White C, Whitmore J, Wilson P, Butler F, Fu X, Kalbfleisch G, Lambrecht M, Ross WR, Skubic P, Snow J, Wang PL, Wood M, Bortoletto D, Brown DN, Dominick J, McIlwain RL, Miao T, Miller DH. Limit on the tau neutrino mass. PHYSICAL REVIEW LETTERS 1993; 70:3700-3704. [PMID: 10053940 DOI: 10.1103/physrevlett.70.3700] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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536
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Furukawa T, Fu X, Kubota T, Watanabe M, Kitajima M, Hoffman RM. Nude mouse metastatic models of human stomach cancer constructed using orthotopic implantation of histologically intact tissue. Cancer Res 1993; 53:1204-8. [PMID: 8439965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Nude mice have been used to develop s.c. growing human stomach tumors, but these rarely metastasize. Recently, I. J. Fidler and others have developed orthotopic implantation metastatic models using cell suspensions which are inoculated into the corresponding organ of nude mice from which the tumor cells were originally derived in the human. However, recent work has indicated that disaggregated cell suspensions may not always express their full metastatic potential. In this light, we have recently developed an orthotopic implant model utilizing intact tissue such as that obtained directly from surgery. This approach has yielded high take rates and frequent metastases in colon cancer, bladder cancer, lung cancer, pancreatic cancer, and prostate cancer. We report here the application of this intact tissue orthotopic implant technique to stomach cancer resulting in the formation of metastases in 100% of the mice with extensive primary growth to the regional lymph nodes, liver, and lung. In contrast, when cell suspensions were used to inject stomach cancer cells at the same site, metastases occurred in only 6.7% of the mice with local tumor formation, emphasizing the importance of using intact tissue to allow full expression of metastatic potential. Injuring the serosa similar to that occurring in intact tissue transplantation did not increase the metastatic rate after orthotopic injection of cell suspensions of stomach tumor cells. This intact tissue orthotopic implantation model should allow development of new treatment modalities and further study of the biology of human stomach cancer.
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537
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Fu X, Hoffman RM. Human ovarian carcinoma metastatic models constructed in nude mice by orthotopic transplantation of histologically-intact patient specimens. Anticancer Res 1993; 13:283-6. [PMID: 8517640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We report here the first orthotopic transplant model for human ovarian cancer. Histologically-intact patient specimens of ovarian cancer were transplanted by microsurgical techniques under the capsule of the nude mouse ovary. The human tumors grew locally and gave rise to a patient-like metastatic pattern including the parietal peritoneum, colon, omentum, and ascites. The orthotopic model described here should be useful for evaluating new therapeutics and diagnostics for ovarian cancer.
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538
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Fu X, Liu Y. Renormalization-group approach for the local density of states of two-dimensional Fibonacci quasilattices. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 47:3026-3030. [PMID: 10006380 DOI: 10.1103/physrevb.47.3026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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539
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Fu X, Herrera H, Hoffman RM. Orthotopic growth and metastasis of human prostate carcinoma in nude mice after transplantation of histologically intact tissue. Int J Cancer 1992; 52:987-90. [PMID: 1459741 DOI: 10.1002/ijc.2910520626] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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540
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Alam MS, Kim IJ, Nemati B, O'Neill JJ, Romero V, Severini H, Sun CR, Wang P, Zoeller MM, Crawford G, Fulton R, Gan KK, Kagan H, Kass R, Lee J, Malchow R, Morrow F, Sung M, White C, Whitmore J, Wilson P, Butler F, Fu X, Kalbfleisch G, Lambrecht M, Skubic P, Snow J, Bortoletto D, Brown DN, Dominick J, McIlwain RL, Miao T, Miller DH, Modesitt M, Schaffner SF, Shibata EI, Shipsey IP, Battle M, Ernst J, Kroha H, Roberts S, Sparks K, Thorndike EH, Wang C, Artuso M, Goldberg M, Haupt T, Horwitz N, Kennett R, Moneti GC, Playfer S, Rozen Y, Rubin P, Skwarnicki T, Stone S, Thulasidas M, Yao W, Zhu G, Stroynowski R, Barnes AV, Bartelt J, Csorna SE, Egyed Z. Shape studies of quark jets versus gluon jets at s=10 GeV. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1992; 46:4822-4827. [PMID: 10014860 DOI: 10.1103/physrevd.46.4822] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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541
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Butler F, Fu X, Kalbfleisch G, Lambrecht M, Ross WR, Skubic P, Snow J, Wang P, Bortoletto D, Brown DN, Dominick J, McIlwain RL, Miao T, Miller DH, Modesitt M, Schaffner SF, Shibata EI, Shipsey IP, Battle M, Ernst J, Kroha H, Roberts S, Sparks K, Thorndike EH, Wang C, Sanghera S, Skwarnicki T, Stroynowski R, Artuso M, Goldberg M, Horwitz N, Kennett R, Moneti GC, Muheim F, Playfer S, Rozen Y, Rubin P, Stone S, Thulasidas M, Yao W, Zhu G, Barnes AV, Bartelt J, Csorna SE, Egyed Z, Jain V, Sheldon P, Akerib DS, Barish B, Chadha M, Cowen DF, Eigen G, Miller JS, Urheim J, Weinstein AJ, Bean A, Gronberg J, Kutschke R, Menary S, Morrison RJ, Nelson HN, Richman JD, Tajima H. Measurement of the D*(2010) branching fractions. PHYSICAL REVIEW LETTERS 1992; 69:2041-2045. [PMID: 10046384 DOI: 10.1103/physrevlett.69.2041] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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542
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Liu Y, Fu X, Deng W, Wang S. Gap-labeling properties of the energy spectrum for one-dimensional Fibonacci quasilattices. PHYSICAL REVIEW. B, CONDENSED MATTER 1992; 46:9216-9219. [PMID: 10002714 DOI: 10.1103/physrevb.46.9216] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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543
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Wang X, Fu X, Kubota T, Hoffman RM. A new patient-like metastatic model of human small-cell lung cancer constructed orthotopically with intact tissue via thoracotomy in nude mice. Anticancer Res 1992; 12:1403-6. [PMID: 1332576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A new nude-mouse metastasizing orthotopic transplant model of human small-cell carcinoma of the lung is described. Histologically-intact human small-cell lung tumors were transplanted to the left lung of nude mice via a thoracotomy procedure we have developed. The transplanted tumors grew extensively locally and metastasized to the opposite lung, lymph nodes and other clinically-relevant sites. The results described indicate the model developed could have clinical relevance and contrasts with models of small-cell carcinoma constructed with injections of cell suspensions which result in few or no metastases.
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544
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Fu X, Herrera H, Kubota T, Hoffman RM. Extensive liver metastasis from human colon cancer in nude and scid mice after orthotopic onplantation of histologically-intact human colon carcinoma tissue. Anticancer Res 1992; 12:1395-7. [PMID: 1444196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Clinically-relevant animal models of human cancer are greatly needed for the study of human cancer biology and the development of new cancer therapeutics and diagnostics. We report here that by orthotopically transplanting histologically-intact human colon cancer to the colon of the immunodeficient nude and scid mouse mutants that extensive local growth and liver metastases occur consistently even after extensive in vivo orthotopic passage. We demonstrate that the liver metastases arise by hematogenous spread. The models described in this report for human colon cancer should prove useful for individual cancer patients as well as for basic and applied studies to develop improved treatment.
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545
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Wang X, Fu X, Hoffman RM. A patient-like metastasizing model of human lung adenocarcinoma constructed via thoracotomy in nude mice. Anticancer Res 1992; 12:1399-401. [PMID: 1444197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A new nude-mouse metastasizing orthotopic transplant model of human adenocarcinoma of the lung is described. Histologically-intact human A549 adenocarcinoma lung tumors were transplanted to the left lung of nude mice via a thoracotomy procedure we have developed. The transplanted tumors grew extensively locally and metastasized to the opposite lung, lymph nodes and other clinically-relevant sites. The results described indicate the model developed could have clinical relevance and contrast with models of the A549 lung adenocarcinoma constructed orthotopically with injections of cell suspensions which result in low metastatic potential.
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546
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Wang X, Fu X, Hoffman RM. A new patient-like metastatic model of human lung cancer constructed orthotopically with intact tissue via thoracotomy in immunodeficient mice. Int J Cancer 1992; 51:992-5. [PMID: 1639545 DOI: 10.1002/ijc.2910510626] [Citation(s) in RCA: 122] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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547
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Fu X, Hoffman RM. Human RT-4 bladder carcinoma is highly metastatic in nude mice and comparable to ras-H-transformed RT-4 when orthotopically onplanted as histologically intact tissue. Int J Cancer 1992; 51:989-91. [PMID: 1639544 DOI: 10.1002/ijc.2910510625] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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548
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Fu X, Guadagni F, Hoffman RM. A metastatic nude-mouse model of human pancreatic cancer constructed orthotopically with histologically intact patient specimens. Proc Natl Acad Sci U S A 1992; 89:5645-9. [PMID: 1608975 PMCID: PMC49349 DOI: 10.1073/pnas.89.12.5645] [Citation(s) in RCA: 287] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Pancreatic cancer is one of the most intractable and least understood of all human cancers. Pancreatic cancers is the fourth-leading cause of cancer-related mortality in the United States with less than 2% of the patients surviving for 5 yr. In an effort to help develop more effective treatment modalities for pancreatic cancer and improve detection, we report an animal model for individual human pancreatic-cancer patients. The model involves orthotopic transplantation of histologically intact pancreatic-cancer specimens to the nude-mouse pancreas, which can result in models that resemble the clinical picture including (i) extensive local tumor growth, (ii) extension of the locally growing human pancreatic cancer to the nude-mouse stomach and duodenum, (iii) metastases of the human pancreatic tumor to the nude-mouse liver and regional lymph nodes, and (iv) distant metastases of the human pancreatic tumor to the nude-mouse adrenal gland, diaphragm, and mediastinal lymph nodes. In a series of five patient cases, a 100% take rate has been demonstrated, and of 17 mice transplanted, 15 supported tumor growth. Immunohistochemical analysis of the antigenic phenotype of the transplanted human pancreatic tumors showed a similar pattern of expression of two different human tumor-associated antigens, such as tumor-associated glycoprotein 72 and carcinoembryonic antigen in the transplanted tumors when compared with the original surgical biopsy, suggesting similarity between the two. This model should, therefore, prove valuable for treatment evaluation of individual cancer patients, as well as for evaluation of experimental treatment modalities for this disease.
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549
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Fu X, Tian H, Sheng Z, Wang D. Multiple organ injuries after abdominal high energy wounding in animals and the protective effect of antioxidants. CHINESE MEDICAL SCIENCES JOURNAL = CHUNG-KUO I HSUEH K'O HSUEH TSA CHIH 1992; 7:86-91. [PMID: 1450398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Multiple organ injuries caused by high energy abdominal wounds were studied in 8 pigs and 24 dogs, and at the same time the protective effect of antioxidants in 14 dogs with multiple organ injuries was also studied. The experimental results showed that: 1) more than two organs (six organs at most) were wounded in each of the animals studied; 2) the injuries were characterized by hemorrhaging, tissue rupture and hematoma, and the main pathologic changes were local edema and necrosis; 3) the marked increase of lipid peroxide (LPO) levels in the vital organs indicated that multiple organ injuries could also involve the molecular level; 4) the injuries were due to the direct effect of pressure waves and ischemic reperfusion and not to shock or infection; and 5) antioxidants (vitamin E and Salvia miltiorrhiza Bge.) exhibited significant protective effects against multiple organ injuries through a free radical mechanism.
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550
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Ammar R, Baringer P, Coppage D, Davis R, Kelly M, Kwak N, Lam H, Ro S, Kubota Y, Lattery M, Nelson JK, Perticone D, Poling R, Schrenk S, Wang R, Alam MS, Kim IJ, Nemati B, Romero V, Sun CR, Wang P, Zoeller MM, Crawford G, Fulton R, Gan KK, Kagan H, Kass R, Lee J, Malchow R, Morrow F, Sung MK, Whitmore J, Wilson P, Butler F, Fu X, Kalbfleisch G, Lambrecht M, Skubic P, Snow J, Bortoletto D, Brown DN, Dominick J, McIlwain RL, Miller DH, Modesitt M, Shibata EI, Schaffner SF, Shipsey IP, Battle M, Ernst J, Kroha H, Roberts S, Sparks K, Thorndike EH, Wang C, Stroynowski R, Artuso M, Goldberg M, Haupt T, Horwitz N, Kennett R, Moneti GC, Playfer S. Electronic branching ratio of the tau lepton. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1992; 45:3976-3985. [PMID: 10014305 DOI: 10.1103/physrevd.45.3976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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