Glycan therapeutics and related methods thereof

Inactive Publication Date: 2017-06-01
DSM NUTRITIONAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0018]In some embodiments, the composition reduces treatment-induced symptoms and the treatment comprises radiation treatment or surgery.
[0019]In some embodiments, the drug- or treatment-induced symptom is exhibited by the subject during a treatment regimen. In some embodim

Problems solved by technology

The results of clinical tests with these substances are conflicted with respect to thei

Method used

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  • Glycan therapeutics and related methods thereof
  • Glycan therapeutics and related methods thereof
  • Glycan therapeutics and related methods thereof

Examples

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Example

Example 1. Preparation of Glycan Therapeutics

[0607]To a round bottom flask equipped with an overhead stirrer and a jacketed short-path condenser was added one or more mono- or disaccharides along with 3-20% by dry weight of one or more of the catalysts described in U.S. Pat. No. 8,466,242 and WO 2014 / 031956, which are incorporated herein by reference in their entirety. Water or another compatible solvent (1.54 equiv) was added to the dry mixture and the slurry was combined at approximately 100 rpm using a paddle sized to match the contours of the selected round bottom flask as closely as possible. The mixture was then heated to 80-155° C. Once the solids achieved a molten state, the vessel was placed under 10-1000 mbar vacuum pressure. The reaction was stirred for 30 minutes to 8 hours, constantly removing water from the reaction. Reaction progress was monitored by HPLC. When sufficient oligomerization had occurred, the stirrer was shut off, the reaction was cooled to room temperatu...

Example

Example 2. Purification of Glycan Therapeutics

[0612]Oligo- and polysaccharides synthesized as in Example 1 were dissolved in deionized water to a final concentration of 25-50 Brix. The material was then exposed to at least 2 mass equivalents of Dowex Monosphere 88 ion exchange resin. Exposure may occur by swirling in a flask at 120-170 rpm or by filtration through a wet slurry packed column as long as the residence time is sufficient for the solution to achieve a final pH between 3 and 5. The oligomer solution was isolated by filtration (as in the case of swirled reactions) or elution (as in the case of column filtration) and the process was repeated with Dowex Monosphere 77 ion exchange resin in an analogous fashion until the solution pH was above 5.5. Finally the solution was exposed to Dowex Optipore SD-2 Adsorbent decolorizing resin until the solution was sufficiently clarified and filtered through a 0.2 micron filter to remove residual resin and resin fines. The final solution ...

Example

Example 3. High-Throughput Preparation of Glycan Therapeutics at Small Scale

[0613]The oligomers and polymers typified in Example 1 were synthesized in a parallel fashion in 24-, 48-, or 96-well plates or similarly sized arrays of 1 dram vials housed in aluminum heating blocks. In this example, all liquid transfers were handled by a programmable robot or manually using calibrated pipettes. To each vial or well was added 20-100% by dry weight of one or more of the catalysts described in U.S. Pat. No. 8,466,242 and WO 2014 / 031956. The plate or heating block was placed uncovered in a vacuum oven heated to 50 to 150° C. under a vacuum of 10-800 mbar. The oven vacuum pump was protected by a two-stage condenser consisting of a recirculating chiller trap followed by a dry ice / acetone trap. The plates or blocks are heated for 30 minutes to 6 hours under elevated temperature and reduced pressure without stirring. After a pre-established period of time, the oven was vented to atmospheric press...

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Abstract

Preparations of glycan therapeutics, pharmaceutical compositions and medical foods thereof, optionally comprising micronutrients, polyphenols, prebiotics, probiotics, or other agents are provided and methods of making same. Also provided are methods of using said glycan therapeutics, e.g. for the modulation of human gastrointestinal microbiota and to treat dysbioses.

Description

CLAIM OF PRIORITY[0001]This application is a continuation of International Application No. PCT / US2016 / 013305, filed Jan. 13, 2016, which claims priority to U.S. Application No. 62 / 108,039, filed Jan. 26, 2015; U.S. Application No. 62 / 152,016, filed Apr. 23, 2015; U.S. Application No. 62 / 152,005, filed Apr. 23, 2015; U.S. Application No. 62 / 152,007, filed Apr. 23, 2015; U.S. Application No. 62 / 152,011, filed Apr. 23, 2015; U.S. Application No. 62 / 152,017, filed Apr. 23, 2015; U.S. Application No. 62 / 216,995, filed Sep. 10, 2015; U.S. Application No. 62 / 216,997, filed Sep. 10, 2015; U.S. Application No. 62 / 217,002, filed Sep. 10, 2015; U.S. Application No. 62 / 216,993, filed Sep. 10, 2015; U.S. Application No. 62 / 238,112, filed Oct. 6, 2015; and U.S. Application No. 62 / 238,110, filed Oct. 6, 2015, the disclosure of each of which is incorporated herein by reference in its entirety.BACKGROUND[0002]The microbiota of humans is complex, and varies by individual depending on genetics, age, s...

Claims

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Application Information

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IPC IPC(8): A61K31/702A61K35/741A23P10/00A61K31/7016A23L33/10A61K45/06A61K31/7004
CPCA61K31/702A61K45/06A61K35/741A61K31/7004A23V2002/00A23L33/10A23P10/00A61K2035/115A61K31/7016A61K31/716A61K31/733A61P1/00Y02A50/30A61K31/715A61K31/366A61K31/353A61K31/11A61K31/34A61K31/7034A61K31/09A61K31/165A61K31/12A61K31/706A61K31/365A61K31/7048A61K33/00
Inventor VON MALTZAHN, GEOFFREY A.SILVERMAN, JAREDYAMANAKA, YVONNE J.MILWID, JOHN MILESGEREMIA, JOHN M.
Owner DSM NUTRITIONAL PROD
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