Cytotoxicity assays Sample Clauses

Cytotoxicity assays. The newly prepared ligands will be evaluated for cytotoxic activity against P388 leukemia cells as well as against a selection of other human cancer cell lines.19 These biochemical experiments will be carried out with one of our collaborators. In addition, suitably active ligands may be submitted on a confidential basis to the Developmental Therapeutics Program of the National Cancer Institute for evaluation against their human 60 cell-line panel.20 As noted above, it is our contention that in phosphorylated form the prodrugs proposed in this study will not demonstrate (in vitro) appreciable cytotoxicity. However, in vivo, they should be selective in terms of their ability to destroy the vasculature of developing tumor cells. Anti-angiogenesis Assays The newly prepared ligands will be evaluated through a high definition screen developed by OXiGENE (Xxxxxxxxx Xxxxxx Xxxx) as an indicator of potential anti-angiogenic acitivity. In addition to the ligands described in this application, numerous other compounds which currently exist in Xx. Xxxxxx’x research group inventory will be subjected to this screening assay. Summary and Future Work A minimum of five new compounds will be prepared and evaluated in terms of their effectiveness as anti-angiogenesis drugs. It is anticipated that structure-activity relationship studies will guide further target molecule selection. Most certainly, a wide variety of additional compounds will be prepared under the auspices of this program in addition to the five compounds that will warrant our initial time and attention. In the vast majority of compounds which undergo binding interactions at the colchicine site, there is clearly an element of aryl-aryl interaction that conceivably plays a significant role in terms of molecular recognition for the site. The studies presented in this application should be sufficient to either lend both qualitative as well as quantitative (in terms of aryl-aryl centroid distances) credence to the hypothesis regarding the necessity of aryl-aryl interaction within the ligand for binding recognition or to dispute the notion and perhaps offer a different paradigm for binding at the colchicine site. Ultimately this expanded knowledge base of molecular recognition aspects paramount for tubulin binding at the colchicine site will be invaluable for the design of new and more potent inhibitors of tubulin polymerization. TENTATIVE TIMETABLE FOR THIS PROPOSED PROJECT Initial Funding Period May 1, 1999-April ...
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Cytotoxicity assays. Xxxxxxx, XXX-0X0 cells will be seeded at a density of 1 x 103 cells/well in 96-well plates and treated with increasing concentrations of the compounds for 24 hours. After that, 50 μl of 3-MTT (4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazo-lium bromide) (5 mg/ml) from a mixture solution of MTT: DMEM (1:2) per well will be added and cells will be incubated for 4 hours at 37º C in darkness. Then, supernatant will be removed and 100 μl DMSO will be added to each well for 10 min, in gentle shaking. Absorbance will be measured at 550 nm using a XxxXxxx XX 000 (Xxxxxxxx Xxxxxxxxxxxx, XxxX & Xx. XX). The mean concentration in each set of three xxxxx will be measured. The absorbance of untreated controls will be considered as 100% survival.
Cytotoxicity assays. The in vitro cytotoxic activity of CAR T-cells was investigated by performing co-cultivation assays. In order to perform these experiments, CAR T-cells were expanded for 10 days post transduction. Tumour cell viability was determined using the following formula: % cell viability = (absorbance/luminescence of co-culture reaction /absorbance or luminescence of untreated tumour cells alone) x 100%.

Related to Cytotoxicity assays

  • Product Testing Upon request, Customer shall provide Operator a laboratory report for each Product delivery by Customer or Customer’s supplier. Operator will not be obligated to receive Contaminated Product for throughput across the Berths, nor will Operator be obligated to accept Product that fails to meet the quality specifications set forth in the arrival notice.

  • Clinical Studies The animal and other preclinical studies and clinical trials conducted by the Company or on behalf of the Company were, and, if still pending are, to the Company’s knowledge, being conducted in all material respects in compliance with all Applicable Laws and in accordance with experimental protocols, procedures and controls generally used by qualified experts in the preclinical study and clinical trials of new drugs and biologics as applied to comparable products to those being developed by the Company; the descriptions of the results of such preclinical studies and clinical trials contained in the Registration Statement and the Prospectus are accurate and complete in all material respects, and, except as set forth in the Registration Statement and the Prospectus, the Company has no knowledge of any other clinical trials or preclinical studies, the results of which reasonably call into question the clinical trial or preclinical study results described or referred to in the Registration Statement and the Prospectus when viewed in the context in which such results are described; and the Company has not received any written notices or correspondence from the FDA, the EMA, or any other domestic or foreign governmental agency requiring the termination, suspension or modification of any preclinical studies or clinical trials conducted by or on behalf of the Company that are described in the Registration Statement and the Prospectus or the results of which are referred to in the Registration Statement and the Prospectus.

  • Development Work The Support Standards do not include development work either (i) on software not licensed from CentralSquare or (ii) development work for enhancements or features that are outside the documented functionality of the Solutions, except such work as may be specifically purchased and outlined in Exhibit 1. CentralSquare retains all Intellectual Property Rights in development work performed and Customer may request consulting and development work from CentralSquare as a separate billable service.

  • Manufacturing (a) The Supplier shall without limitation be responsible, at no additional cost to the Purchaser, for: sourcing and procuring all raw materials for the Products; obtaining all necessary approvals, permits and licenses for the manufacturing of the Products; providing sufficient qualified staff and workers to perform the obligations under this Purchase Agreement; implementing and maintaining effective inventory and production control procedures with respect to the Products; and handling other matters as reasonably requested by the Purchaser from time to time.

  • Tests and Preclinical and Clinical Trials The studies, tests and preclinical and clinical trials conducted by or, to the Company’s knowledge, on behalf of the Company were and, if still ongoing, are being conducted in all material respects in accordance with experimental protocols, procedures and controls pursuant to accepted professional scientific standards and all Authorizations and Applicable Laws, including, without limitation, the Federal Food, Drug and Cosmetic Act and the rules and regulations promulgated thereunder (collectively, “FFDCA”); the descriptions of the results of such studies, tests and trials contained in the Registration Statement, the General Disclosure Package and the Prospectus are, to the Company’s knowledge, accurate in all material respects and fairly present the data derived from such studies, tests and trials; except to the extent disclosed in the Registration Statement, the General Disclosure Package and the Prospectus, the Company is not aware of any studies, tests or trials, the results of which the Company believes reasonably call into question the study, test, or trial results described or referred to in the Registration Statement, the General Disclosure Package and the Prospectus when viewed in the context in which such results are described and the clinical state of development; and, except to the extent disclosed in the Registration Statement, the General Disclosure Package or the Prospectus, neither the Company nor any Subsidiary has received any notices or correspondence from the FDA or any Governmental Entity requiring the termination or suspension of any studies, tests or preclinical or clinical trials conducted by or on behalf of the Company, other than ordinary course communications with respect to modifications in connection with the design and implementation of such trials, copies of which communications have been made available to you.

  • Studies The clinical, pre-clinical and other studies and tests conducted by or on behalf of or sponsored by the Company or its subsidiaries that are described or referred to in the Registration Statement, the Pricing Disclosure Package and the Prospectus were and, if still pending, are being conducted in accordance in all material respects with all statutes, laws, rules and regulations, as applicable (including, without limitation, those administered by the FDA or by any foreign, federal, state or local governmental or regulatory authority performing functions similar to those performed by the FDA). The descriptions of the results of such studies and tests that are described or referred to in the Registration Statement, the Pricing Disclosure Package and the Prospectus are accurate and complete in all material respects and fairly present the published data derived from such studies and tests, and each of the Company and its subsidiaries has no knowledge of other studies or tests the results of which are materially inconsistent with or otherwise call into question the results described or referred to in the Registration Statement, the Pricing Disclosure Package and the Prospectus. Except as described in the Registration Statement, the Pricing Disclosure Package and the Prospectus, neither the Company nor its subsidiaries has received any notices or other correspondence from the FDA or any other foreign, federal, state or local governmental or regulatory authority performing functions similar to those performed by the FDA with respect to any ongoing clinical or pre-clinical studies or tests requiring the termination or suspension of such studies or tests. For the avoidance of doubt, the Company makes no representation or warranty that the results of any studies, tests or preclinical or clinical trials conducted by or on behalf of the Company will be sufficient to obtain governmental approval from the FDA or any foreign, state or local governmental body exercising comparable authority.

  • Clinical Trials The studies, tests and preclinical and clinical trials conducted by or on behalf of, or sponsored by, the Company, or in which the Company has participated, that are described in the Registration Statement, the Time of Sale Disclosure Package or the Prospectus, or the results of which are referred to in the Registration Statement, the Time of Sale Disclosure Package or the Prospectus, were and, if still pending, are being conducted in all material respects in accordance with protocols, procedures and controls pursuant to, where applicable, accepted professional and scientific standards for products or product candidates comparable to those being developed by the Company and all applicable statutes, rules and regulations of the FDA, the EMEA, Health Canada and other comparable drug and medical device (including diagnostic product) regulatory agencies outside of the United States to which they are subject; the descriptions of the results of such studies, tests and trials contained in the Registration Statement, the Time of Sale Disclosure Package or the Prospectus do not contain any misstatement of a material fact or omit a material fact necessary to make such statements not misleading; the Company has no knowledge of any studies, tests or trials not described in the Disclosure Package and the Prospectus the results of which reasonably call into question in any material respect the results of the studies, tests and trials described in the Registration Statement, the Time of Sale Disclosure Package or Prospectus; and the Company has not received any notices or other correspondence from the FDA, EMEA, Health Canada or any other foreign, state or local governmental body exercising comparable authority or any Institutional Review Board or comparable authority requiring or threatening the termination, suspension or material modification of any studies, tests or preclinical or clinical trials conducted by or on behalf of, or sponsored by, the Company or in which the Company has participated, and, to the Company’s knowledge, there are no reasonable grounds for the same. Except as disclosed in the Registration Statement, the Time of Sale Disclosure Package and the Prospectus, there has not been any violation of law or regulation by the Company in its respective product development efforts, submissions or reports to any regulatory authority that could reasonably be expected to require investigation, corrective action or enforcement action.

  • Testing Landlord shall have the right to conduct annual tests of the Premises to determine whether any contamination of the Premises or the Project has occurred as a result of Tenant’s use. Tenant shall be required to pay the cost of such annual test of the Premises; provided, however, that if Tenant conducts its own tests of the Premises using third party contractors and test procedures acceptable to Landlord which tests are certified to Landlord, Landlord shall accept such tests in lieu of the annual tests to be paid for by Tenant. In addition, at any time, and from time to time, prior to the expiration or earlier termination of the Term, Landlord shall have the right to conduct appropriate tests of the Premises and the Project to determine if contamination has occurred as a result of Tenant’s use of the Premises. In connection with such testing, upon the request of Landlord, Tenant shall deliver to Landlord or its consultant such non-proprietary information concerning the use of Hazardous Materials in or about the Premises by Tenant or any Tenant Party. If contamination has occurred for which Tenant is liable under this Section 30, Tenant shall pay all costs to conduct such tests. If no such contamination is found, Landlord shall pay the costs of such tests (which shall not constitute an Operating Expense). Landlord shall provide Tenant with a copy of all third party, non-confidential reports and tests of the Premises made by or on behalf of Landlord during the Term without representation or warranty and subject to a confidentiality agreement. Tenant shall, at its sole cost and expense, promptly and satisfactorily remediate any environmental conditions identified by such testing in accordance with all Environmental Requirements. Landlord’s receipt of or satisfaction with any environmental assessment in no way waives any rights which Landlord may have against Tenant.

  • Commercialization Intrexon shall have the right to develop and Commercialize the Reverted Products itself or with one or more Third Parties, and shall have the right, without obligation to Fibrocell, to take any such actions in connection with such activities as Intrexon (or its designee), at its discretion, deems appropriate.

  • Research Plan The Parties recognize that the Research Plan describes the collaborative research and development activities they will undertake and that interim research goals set forth in the Research Plan are good faith guidelines. Should events occur that require modification of these goals, then by mutual agreement the Parties can modify them through an amendment, according to Paragraph 13.6.

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